JPH07117472B2

JPH07117472B2 - Calibration method in dynamic balance test apparatus and apparatus thereof

Info

Publication number: JPH07117472B2
Application number: JP1290088A
Authority: JP
Inventors: 敬久源間
Original assignee: Riken Keiki KK
Current assignee: Riken Keiki KK
Priority date: 1988-01-22
Filing date: 1988-01-22
Publication date: 1995-12-18
Anticipated expiration: 2010-12-18
Also published as: JPH01187429A

Description

【発明の詳細な説明】（技術分野）本発明は、動釣合試験装置における初期感度の調整技術
に関する。Description: TECHNICAL FIELD The present invention relates to a technique for adjusting initial sensitivity in a dynamic balance test apparatus.

（従来技術）通常、感度調整を行なうため、通常、既知の不釣合量を
持つタイヤを装着して、これの指示が既知量となるよう
に感度調整機構を調整することが行なわれている。(Prior Art) Usually, in order to adjust the sensitivity, a tire having a known unbalance amount is usually mounted and the sensitivity adjusting mechanism is adjusted so that the instruction of the tire becomes a known amount.

このため、感度調整用のタイヤの着脱操作を必要として
作業が繁雑であるという問題がある。Therefore, there is a problem that the work is complicated because it is necessary to attach and detach the tire for adjusting the sensitivity.

（目的）本発明はこのような問題に鑑みてなされたものであっ
て、、その目的とするところは感度調整用のタイヤを必
要とすることなく感度を調整することができる動釣合試
験装置の感度調整方法を提案することにある。(Purpose) The present invention has been made in view of such a problem, and a purpose thereof is a dynamic balance test device capable of adjusting sensitivity without requiring a tire for sensitivity adjustment. It is to propose the sensitivity adjustment method of.

本発明の他の目的は、上述の方法を実現する装置を提供
することにある。Another object of the invention is to provide an apparatus for implementing the above method.

（発明の概要）すなわち、本発明が特徴とするところは、被試験体の取
付可能な回転軸に、軸方向に一定の距離でもって２つの
振動検出手段により回転可能に支持するとともに、前記
回転軸の位置検出手段を取付けてなる試験装置本体と、
前記振動検出手段からの信号の比率を調整する面分離比
調整手段を備えて振動検出器からの信号をアウト側成分
信号とイン側成分信号に分離する面分離回路と、イン側
信号とアウト側信号のレベルをそれぞれ調節する感度調
整手段と、面分離回路からの信号を整流平滑して不釣合
量を指示する手段と、位置検出手段からの信号に基づい
て不釣合信号を指示する手段を備えた動釣合試験装置
に、任意の被試験体を取付けて駆動し、各振動検出手段
からの信号を記憶する工程と、前記被試験体に既知量の
錘を装着した状態で駆動して前記振動検出手段からの信
号を記憶する工程と、前記２つの工程により得た信号の
差分を検出して前記面分離回路によりアウト側成分信号
とイン側成分信号を面分離する工程と、前記成分信号の
内、錘を装着していない方の指示値が零に、また錘を装
着した方の信号が前記錘の重量に一致する値を指示する
ように面分離比と感度を調整する工程を備えた点にあ
る。(Summary of the Invention) That is, a feature of the present invention is that a rotation shaft to which a device under test can be attached is rotatably supported by two vibration detection means at a fixed distance in the axial direction, and the rotation is performed. A test apparatus main body equipped with a shaft position detecting means,
A surface separation circuit for separating the signal from the vibration detector into an out-side component signal and an in-side component signal, comprising a surface separation ratio adjusting means for adjusting the ratio of the signal from the vibration detecting means, and an in-side signal and an out-side A dynamic adjusting means for adjusting the level of each signal, a means for indicating the unbalance amount by rectifying and smoothing the signal from the surface separation circuit, and a means for indicating the unbalance signal based on the signal from the position detecting means. Attaching and driving an arbitrary device under test to the balance test device and storing the signal from each vibration detecting means; and detecting the vibration by driving with a weight of a known amount attached to the device under test. A step of storing a signal from the means; a step of detecting a difference between the signals obtained by the two steps and surface-separating the out-side component signal and the in-side component signal by the surface separation circuit; , With weight attached The indicated value of the had way is zero, also lies in having a step of adjusting the surface segregation ratio and sensitivity to indicate the value of the signal of the direction of mounting the weight to match the weight of the weight.

（実施例）そこで、以下に本発明の詳細を図示した実施例に基づい
て説明する。(Example) Therefore, the details of the present invention will be described below based on an illustrated example.

第１図は本発明の一実施例を示すものであって、図中符
号１はモータで、回転軸２の先端にはタイヤホイールを
固定する装着具３が設けられている。このモータ１は基
台４の側面から回転軸２を突出させる位置に４隅でサポ
ートロッド５、５、５、５により基台に垂設して固定さ
れている。各サポートロッド５は、その中央部に細径部
5aが形成されて、中央部を節として撓むように構成され
ている。FIG. 1 shows an embodiment of the present invention. In the drawing, reference numeral 1 is a motor, and a mounting tool 3 for fixing a tire wheel is provided at the tip of a rotary shaft 2. The motor 1 is vertically fixed to the base by support rods 5, 5, 5 and 5 at four corners at positions where the rotary shaft 2 is projected from the side surface of the base 4. Each support rod 5 has a small diameter part at its center.
5a is formed, and is configured to bend with the central portion as a node.

一方、モータ１の軸方向両端には、ロッド６、６の一端
6a、6aを固定し、他端6b、6bは圧電素子からなる振動検
出器７、７を介装して基台４に植設した壁面８に固定さ
れている。なお、図中符号10は、モータ回転軸端に取付
けた付与板で、基台４に設けたフォトセンサ11、11とに
より回転位置検出器を構成している。On the other hand, one end of each of the rods 6 and 6 is provided at both axial ends of the motor 1.
6a, 6a are fixed, and the other ends 6b, 6b are fixed to the wall surface 8 planted in the base 4 with the vibration detectors 7 made of piezoelectric elements interposed. In addition, reference numeral 10 in the drawing denotes an applying plate attached to the end of the motor rotating shaft, and a photo sensor 11, 11 provided on the base 4 constitutes a rotational position detector.

第２図は、信号処理部の一実施例を示すものであって、
図中符号20は、回転位置検出器を構成するフォトセンサ
11、11からの信号を受けるアップダウンカウンタで、こ
れからの信号は、試験開始時や電源投入時におけるアッ
プダウンカウンタ20の計数内容を記憶する基準点記憶回
路21に入力する一方、回転位置信号発生回路22に入力し
て初期計数内容との差分を演算されて設定基準位置に対
応する信号に変換され、さらに後述する面分離回路30か
らの信号の零交差点を検出するコンパレータ23、24から
の信号に基づいてピーク位置検出回路25、26においてピ
ークに対応する位置を検出された後、移相器27、28を介
してアウト側位置表示器29、イン側位置表示器30に出力
している。FIG. 2 shows an embodiment of the signal processing section,
Reference numeral 20 in the figure denotes a photo sensor that constitutes a rotational position detector.
An up / down counter that receives signals from 11 and 11.The signals from this are input to a reference point storage circuit 21 that stores the count content of the up / down counter 20 at the start of a test or when the power is turned on, while the rotational position signal is generated. The signals from the comparators 23 and 24, which are input to the circuit 22 and whose difference from the initial count content is calculated and converted into a signal corresponding to the set reference position, and which further detects the zero crossing point of the signal from the surface separation circuit 30 described later. After the position corresponding to the peak is detected by the peak position detection circuits 25 and 26 based on the above, it is output to the out side position indicator 29 and the in side position indicator 30 via the phase shifters 27 and 28.

31は、前述の面分離回路で、切換スイッチS1により振動
検出器７、７からの２つの信号、及び後述する差分演算
回路54、55からの２つの信号を、面分離比率を調整する
面分離比率調整器33を介して受けるとともに、被試験回
転体の軸方向長、及び振動検出器７、７と被試験回転体
の間の距離等の寸法データ入力回路32からのデータに基
づいて、被試験回転体のアウト側成分信号と、イン側成
分信号に分離するように構成され、各成分信号は、感度
調整器を34、35、雑音除去用フィルタ36、37を介して整
流平滑回路38、39により直流化されたのち、アウト側不
釣合量表示器40、イン側不釣合量表示器41に出力してい
る。これら感度調整器34、35は、操作量に対して同一比
率で信号を減衰させるように連動して調整可能に構成さ
れている。Reference numeral 31 is a surface separation circuit for adjusting the surface separation ratio of the two signals from the vibration detectors 7 and 7 and the two signals from the difference calculation circuits 54 and 55, which will be described later, by the changeover switch S1. It is received via the ratio adjuster 33 and based on the data from the dimension data input circuit 32 such as the axial length of the rotating body under test and the distance between the vibration detectors 7, 7 and the rotating body under test. The output side component signal of the test rotator is configured to be separated into the in side component signal, and each component signal is a rectification smoothing circuit 38 via sensitivity adjusters 34, 35 and noise removal filters 36, 37. After being converted to a direct current by 39, it is output to the out-side unbalance amount display device 40 and the in-side unbalance amount display device 41. These sensitivity adjusters 34 and 35 are configured to be interlocked and adjustable so as to attenuate the signal at the same ratio with respect to the operation amount.

50、51、52、53は、それぞれ波形記憶回路で、各振動検
出器７、７からの信号波形を記憶することができる容量
を備えて回転位置をアドレスに、また振幅値をデータと
して記憶するもので、各振動検出器７、７に対をなすよ
うに接続されて、読出し時には対をなす波形記憶回路5
0、51及び52、53の各信号を差分回路54、55を介して切
換スイッチS1を介して面分離回路31に出力するように構
成されている。Reference numerals 50, 51, 52, and 53 are waveform storage circuits, each of which has a capacity capable of storing a signal waveform from each of the vibration detectors 7 and 7 and stores a rotational position as an address and an amplitude value as data. A waveform storage circuit 5 which is connected to each of the vibration detectors 7 and 7 to form a pair and which forms a pair at the time of reading.
Each of the signals 0, 51 and 52, 53 is configured to be output to the surface separation circuit 31 via the changeover switch S1 via the difference circuits 54, 55.

60、61は、比較回路で、既知量の錘を装着する側には、
この錘に対応する不釣合量を設定する基準値設定器62か
らの信号が、また他方の側には不釣合量零が設定された
設定器63からの信号が入力し、不釣合量信号との差分を
後述する制御回路66に出力するものである。65は、位相
差検出回路で、錘を装着した位置を示す位置信号を記憶
する錘位置記憶回路64と、錘が装着された側のピーク位
置検出回路、この実施例では回路25からの出力の差を検
出して制御回路66に出力するものである。66は、前述の
制御回路で、マイクロコンピュータからなり、校正モー
ド設定時には、後述するフローチャートに示す手順に基
づいて分離比率調整器33、温度調整器34、35及び位相器
37、28を操作するようにプログラムされている。なお、
図中符号71、72は、それぞれ被試験回転体の直径や回転
速度による指示値の変化を補正するための定数設定回路
を示す。60 and 61 are comparison circuits, on the side where a known weight is mounted,
The signal from the reference value setter 62 that sets the unbalance amount corresponding to this weight, and the signal from the setter 63 in which the unbalance amount is set to zero is input to the other side, and the difference with the unbalance amount signal is input. This is output to the control circuit 66 described later. 65 is a phase difference detection circuit, a weight position storage circuit 64 that stores a position signal indicating the position where the weight is mounted, a peak position detection circuit on the side where the weight is mounted, and in this embodiment the output from the circuit 25 The difference is detected and output to the control circuit 66. Reference numeral 66 denotes the control circuit described above, which is composed of a microcomputer, and when the calibration mode is set, the separation ratio adjuster 33, the temperature adjusters 34 and 35, and the phase shifter based on the procedure shown in the flowchart described later.
Programmed to operate 37, 28. In addition,
Reference numerals 71 and 72 in the figure denote constant setting circuits for correcting the change in the indicated value due to the diameter and the rotation speed of the rotating body under test, respectively.

この実施例において、輸送等により過大な振動を受ける
と、モータは４本のサポートロッド５、５、５、５に支
えられた状態で基台４との間で相対的に揺動することに
なるが、４点で吊下げられているため、作用力が無くな
ると元の位置に戻ることになるから、振動検出器７、７
とのモータ１との間に位置ズレが生じることはない。In this embodiment, when the motor is subjected to excessive vibration due to transportation or the like, the motor is oscillated relative to the base 4 while being supported by the four support rods 5, 5, 5, 5. However, since it is suspended at four points, it will return to its original position when the acting force disappears.
There is no displacement between the motor 1 and the motor 1.

所定の場所に設置した段階で、スイッチS1を図中接点ａ
側にセットするとともに、被試験回転体、例ばタイヤを
装着具３により回転軸２に取付けてモータ１を駆動し、
所定回転速度に到達した時点でモータ１への電力を断
つ。これによりタイヤは、外部からの作用力を受ること
なく自由回転状態となって、自己の不釣合量に起因する
径方向の力を発生することになる。この径方向の力の
内、水平方向に作用した力は、モータ１を介してサポー
トロッド５、５、５、５を中央部から撓ませるように作
用し、ロッド６、６を介して振動検出器７、７を弾圧す
ることになる。これにより、振動検出器７、７は、タイ
ヤの不釣合に起因する信号を出力する。各振動検出器
７、７からの信号は、スイッチS1を介して面分離回路31
に入力して、アウト側成分信号とイン側成分信号とに分
離され、整流平滑回路36、37により直流成分に変換され
て表示器40、41により不釣合量として表示され、またフ
イルタ36、37から出力する正弦波形段階における信号の
零交差点に一致する回転位置信号発生回路22からの信号
を表示器29、30に出力してアウト側、イン側の不釣合位
置を表示する。When the switch S1 is installed in the specified place, switch S1 is
The rotating body to be tested, for example, a tire, is mounted on the rotating shaft 2 by the mounting tool 3 and the motor 1 is driven.
When the predetermined rotation speed is reached, the electric power to the motor 1 is cut off. As a result, the tire is brought into a free rotation state without receiving an external force, and a radial force due to its own unbalance amount is generated. Of the forces in the radial direction, the force acting in the horizontal direction acts to bend the support rods 5, 5, 5 and 5 from the central portion via the motor 1, and vibration detection is performed via the rods 6 and 6. It will suppress the vessels 7, 7. As a result, the vibration detectors 7 and 7 output signals due to the imbalance of the tires. The signals from the respective vibration detectors 7 and 7 are passed through the switch S1 and the surface separation circuit 31
Input to the output side component signal and separated into the in-side component signal, converted to a direct current component by the rectifying and smoothing circuits 36, 37 and displayed as an unbalanced amount by the indicators 40, 41, and from the filters 36, 37. A signal from the rotational position signal generating circuit 22 that coincides with the zero-crossing point of the signal in the output sine waveform stage is output to the displays 29 and 30 to display the out-side and in-side unbalanced positions.

ところで、組立終了時の感度調整や、経年変化による感
度の再調整が必要な場合には、先ず任意の被試験回転
体、例えばこれから不釣合を測定しようとするタイヤを
回転軸に固定し、スイッチ31を図中接点ｂ側に切換え
る。By the way, when sensitivity adjustment at the end of assembly or readjustment of sensitivity due to secular change is necessary, first, an arbitrary rotating body under test, for example, a tire whose imbalance is to be measured is fixed to the rotating shaft, and the switch 31 To the contact b side in the figure.

このような準備を終えた段階で、電源をONすると、アッ
プダウンカウンタ20の値が基準位置として記憶回路21に
格納される。基準位置の格納が終了した段階でモータ１
を所定回転数で回転させると、振動検出器７、７から今
装着されているタイヤの不釣合量に対応する信号が出力
し、これらの信号はそれぞれ第１、第３の波形記憶回路
50、52に格納される（第４図Ｉ、III）。When the power is turned on at the stage where such preparation is completed, the value of the up / down counter 20 is stored in the memory circuit 21 as the reference position. When the reference position is completely stored, the motor 1
Is rotated at a predetermined number of rotations, the vibration detectors 7 and 7 output signals corresponding to the unbalanced amount of the tires currently mounted, and these signals are respectively the first and third waveform storage circuits.
It is stored in 50 and 52 (Fig. 4, I and III).

第１回目の信号の取込みが終了した段階で、モータを停
止させ、既知量の錘をタイヤ一方の面、例えばアウト側
の基準点、例えばリムの最下点に装着し、このときの回
転位置信号発生回路22の信号を錘位置記憶回路64に格納
する。When the first signal acquisition is completed, the motor is stopped, and a known amount of weight is attached to one surface of the tire, for example, the reference point on the out side, for example, the lowest point of the rim. The signal of the signal generation circuit 22 is stored in the weight position storage circuit 64.

このような基準を終えた段階で再びモータ１を回転させ
ると、タイヤ本来の不釣合量に起因する信号に重畳する
形で、今、装着した錘に起因する不釣合を表わす信号が
振動検出器７、７から出力し、第２、第４の波形記憶回
路51、53にそれぞれ格納される（同図II、IV）。When the motor 1 is rotated again at the stage where such a reference is finished, the vibration detector 7, which is a signal indicating the imbalance caused by the weight, is superimposed on the signal caused by the original imbalance amount of the tire. 7 and are stored in the second and fourth waveform storage circuits 51 and 53, respectively (II and IV in the same figure).

このようにして２種類の波形の取込みが終了した段階
で、第１と第２の記憶回路50、51、及び第３、第４の波
形記憶回路52、53に記憶されている信号波形が、それぞ
れ差分回路54、55を介して面分離回路31に読出される。When the two types of waveforms have been captured in this way, the signal waveforms stored in the first and second memory circuits 50 and 51 and the third and fourth waveform memory circuits 52 and 53 are The data is read out to the plane separation circuit 31 via the difference circuits 54 and 55, respectively.

これら差分演算回路54、55から出力した信号（同図ハ、
ニ）は、面分離回路31により、分離比率の適、不適に関
わりなくアウト側成分信号とイン側成分信号に分離され
て整流平滑回路37、38により直流信号に変換され、不釣
合量を表わす信号に変換される。The signals output from these difference calculation circuits 54 and 55 (see FIG.
2) is a signal that represents an unbalance amount, which is separated into an out-side component signal and an in-side component signal by the surface separation circuit 31 regardless of whether the separation ratio is appropriate or not, and is converted into a DC signal by the rectification smoothing circuits 37 and 38. Is converted to.

ところで、前述したように既知量の錘をアウト側だけに
取付けているから、イン側の不釣合量は、相対的に零、
つまり第１回目の信号と第２回目の信号との間に差が生
じてはならないから、比較回路61からの信号が零となる
ように分離比率調整器33を調整する。By the way, as described above, since a known amount of weight is attached only to the out side, the unbalance amount on the in side is relatively zero,
That is, since there should be no difference between the first-time signal and the second-time signal, the separation ratio adjuster 33 is adjusted so that the signal from the comparison circuit 61 becomes zero.

このようにして、錘を装着していない方の出力が零とな
るように分離比率調整が終了した段階で、前述の工程と
同様に再び波形記憶回路50、51、52、53から波形信号を
読出し、第１と第２の波形記憶回路50、51、及び第３と
第４の波形記憶回路52、53に格納されているデータの差
分を面分離回路31に出力する。比較回路60からの信号が
零、つまり面分離回路31からのアウト側成分信号（錘を
装着した側の成分信号）が錘の重量に対応する不釣合量
となるように、感度調整器34、35を調整する。In this way, when the separation ratio adjustment is completed so that the output without the weight is zero, the waveform signals are again output from the waveform storage circuits 50, 51, 52, and 53 in the same manner as the above process. The difference between the data read and stored in the first and second waveform storage circuits 50 and 51 and the third and fourth waveform storage circuits 52 and 53 is output to the surface separation circuit 31. The sensitivity adjusters 34, 35 are arranged so that the signal from the comparison circuit 60 is zero, that is, the out-side component signal (the component signal on the side where the weight is mounted) from the surface separation circuit 31 becomes an unbalance amount corresponding to the weight of the weight. Adjust.

いうまでもなく不釣合信号は、基準位置から相対位置
と、この相対位置における不釣合量との２つの量を対と
するデータであるから、錘を付けない状態での不釣合信
号と、錘を付けた状態での不釣合信号との増分変化は当
然に錘を付けた相対位置にだけ生じ、したがって求めら
れた差分は、つまり前記アウト側成分信号は、錘による
不釣合量を示すことになる。Needless to say, the unbalanced signal is data in which two amounts, that is, the relative position from the reference position and the unbalanced amount at this relative position, are paired. Therefore, the unbalanced signal without the weight and the weighted one are attached. The incremental change from the unbalanced signal in the state naturally occurs only at the relative position with the weight, and thus the obtained difference, that is, the outside component signal, indicates the unbalanced amount due to the weight.

不釣合量校正作業が終了した段階、もしくはこれに並行
して、ピーク位置検出回路25によりアウト側成分信号の
ピーク位置を検出する一方、錘位置記憶回路64からの信
号を位相差検出回路65により検出し、この位相差が零と
なるように移相器27、28を調整する。The peak position detection circuit 25 detects the peak position of the out-side component signal while the unbalance amount calibration work is completed, or in parallel with this, while the phase difference detection circuit 65 detects the signal from the weight position storage circuit 64. Then, the phase shifters 27 and 28 are adjusted so that this phase difference becomes zero.

これにより、振動検出器の感度や、回路定数のバラツキ
や、経時変化による測定感度やピーク位置の変動が修正
されて、不釣合量や不釣合位置を正確に指示することに
なる。As a result, the sensitivity of the vibration detector, the variation of the circuit constant, and the variation of the measurement sensitivity and the peak position due to the change with time are corrected, and the unbalance amount and the unbalanced position are accurately indicated.

このようにして感度調整が終了した段階で、スイッチS1
にを再び接点ａ側に切換えることにより、今調整された
面分離比や、感度調整量、移送調整量が制御回路に格納
される。この状態で、調整作業に使用していた被試験回
転体であるタイヤから錘を外して引続いて通常の測定に
移ることにより、タイヤの着脱操作を必要とすることな
く被測定回転体の不釣合量と、その位置を正確に測定で
きる。When sensitivity adjustment is completed in this way, switch S1
By switching to the contact a side again, the surface separation ratio, the sensitivity adjustment amount, and the transfer adjustment amount that have been adjusted are stored in the control circuit. In this state, by removing the weight from the tire that is the rotating body under test used for the adjustment work and then proceeding to the normal measurement, the unbalance of the rotating body under measurement can be performed without the need to attach or detach the tire. The quantity and its position can be measured accurately.

第５図は、本発明の第２実施例を示すものであって、こ
の実施例においては、被試験回転体の軸方向長、及び振
動検出器７、７と被試験回転体の間の距離等の寸法デー
タ入力回路32で、一方の側、例えばアウト側の感度校正
が終了した段階で被試験回転体の軸方向長さ分だけ振動
検出器と被試験回転体の距離データを変更するスイッチ
S2が設けられ、また面分離回路31の出力側には、個々に
調整可能な感度調整器82、83を接続して、制御回路84か
らの信号により独立的に調整可能に構成されている。な
お、図中符号85、86は、それぞれ錘に対応する不釣合量
と、錘を装着していないときの零不釣合量を設定した設
定器で、スイッチS2に同期するスイッチS3を介して比較
回路61に２種類の設定値を入力するものである。FIG. 5 shows a second embodiment of the present invention. In this embodiment, the axial length of the rotating body under test and the distance between the vibration detectors 7, 7 and the rotating body under test are shown. A switch for changing the distance data between the vibration detector and the rotating body under test by the axial length of the rotating body under test at the stage where the sensitivity calibration on one side, for example, the out side, is completed in the dimension data input circuit 32 such as
S2 is provided, and individually adjustable sensitivity adjusters 82 and 83 are connected to the output side of the surface separation circuit 31 so that they can be adjusted independently by a signal from the control circuit 84. In the figure, reference numerals 85 and 86 are setters that respectively set the unbalance amount corresponding to the weight and the zero unbalance amount when the weight is not attached, and the comparison circuit 61 via the switch S3 synchronized with the switch S2. Two types of setting values are input to.

次に、このように構成した装置の動作を第６図に示した
フローチャートに基づいて説明する。Next, the operation of the apparatus configured as described above will be described based on the flowchart shown in FIG.

例えばこれから不釣合を測定しようとするタイヤを回転
軸に固定し、スイッチS1を図中接点ｂ側に切換える。For example, the tire whose imbalance is to be measured is fixed to the rotating shaft, and the switch S1 is switched to the contact b side in the figure.

第１回目の信号の取込みが終了した段階で、モータを停
止させ、既知量の錘をタイヤの一方の面、例えばアウト
側の基準点、例えばリムの最下点に装着し、このときの
回転位置信号発生回路22の信号を錘位置記憶回路64に格
納する。At the stage when the first signal acquisition is completed, the motor is stopped, and a known amount of weight is attached to one surface of the tire, for example, the reference point on the out side, for example, the lowest point of the rim, and rotation at this time. The signal of the position signal generation circuit 22 is stored in the weight position storage circuit 64.

このような準備を終えた段階で再びモータ１を回転させ
ると、タイヤ本来の不釣合量に起因する信号に重畳する
形で、今、装着した錘に起因する不釣合を表わす信号が
振動検出器７、７から出力し、第２、第４の波形記憶回
路51、53にそれぞれ格納される（同図II、IV）。When the motor 1 is rotated again at the stage where such preparations have been completed, a signal indicating the imbalance caused by the weight currently mounted is superimposed on the signal caused by the original imbalance amount of the tire, and the vibration detector 7, 7 and are stored in the second and fourth waveform storage circuits 51 and 53, respectively (II and IV in the same figure).

これら差分演算回路54、55から出力した信号（同図ハ、
ニ）は、面分離回路31により、分離比率の適、不適に関
わりなくアウト側成分信号とイン側成分信号に分離され
て整流平滑回路38、39により直流信号に変換され、不釣
合量を表わす信号に変換される。The signals output from these difference calculation circuits 54 and 55 (see FIG.
(D) is a signal that represents an unbalance amount, which is separated into an out-side component signal and an in-side component signal by the surface separation circuit 31 regardless of the separation ratio, and is converted into a DC signal by the rectifying and smoothing circuits 38 and 39. Is converted to.

ところで、前述したように既知量の錘をアウト側だけに
取付けているから、イン側の不釣合量は、相対的に零、
つまり第１回目の信号と第２回目の信号との間に差が生
じてはならないから、比較回路61からの信号が零となる
ように分離比率調整器33を調整する。面分離比率の調整
が終了した段階で、波形記憶回路50、51、52、53から差
分回路54、55を介して信号を読出し、錘を装着した側で
あるアウト側成分信号が錘重量に対応する不釣合量を示
すようにアウト側成分信号の出力を感度調整器82により
修正する。By the way, as described above, since a known amount of weight is attached only to the out side, the unbalance amount on the in side is relatively zero,
That is, since there should be no difference between the first-time signal and the second-time signal, the separation ratio adjuster 33 is adjusted so that the signal from the comparison circuit 61 becomes zero. When the adjustment of the surface separation ratio is completed, the signal is read from the waveform storage circuits 50, 51, 52, 53 via the difference circuits 54, 55, and the component signal on the outer side, which is the side on which the weight is mounted, corresponds to the weight of the weight. The output of the out-side component signal is corrected by the sensitivity adjuster 82 so as to indicate the unbalance amount.

アウト側の感度校正が終了した段階で、スイッチS2を操
作して、振動検出器７、７と被回転試験回転体との距離
データを、被試験回転体であるタイヤの幅に相当する分
だけ軸外側に変更して、再び差分演算回路54、55を介し
て波形記憶回路50〜53から信号を読出す。これにより、
面分離回路31は、イン側に錘が装着されていないにもか
かわらず、あたかもイン側に錘が装着されたごとくに信
号処理を行なうことになるから、このイン側成分信号が
錘の重量に対応する不釣合量、つまりスイッチS3を介し
て入力する設定器85からの信号と同一になるようにイン
側の感度調整器83を調整する。When the sensitivity calibration on the OUT side is completed, operate the switch S2 to set the distance data between the vibration detectors 7, 7 and the rotating test rotating body by the amount corresponding to the width of the tire being the rotating body under test. The signal is read from the waveform storage circuits 50 to 53 again via the difference calculation circuits 54 and 55 after changing to the outside of the axis. This allows
The surface separation circuit 31 performs signal processing as if the weight was attached to the in-side, even though the weight was not attached to the in-side. The in-side sensitivity adjuster 83 is adjusted so that the corresponding unbalance amount, that is, the signal from the setting device 85 input via the switch S3 becomes the same.

また、不釣合量校正作業が終了した段階、もしくはこれ
に並行して、ピーク位置検出回路25によりアウト側成分
信号のピーク位置を検出する一方、錘位置記憶回路64か
らの信号を位相差検出回路65により検出し、この位相差
が零となるように移相器27、28を調整する。The peak position detection circuit 25 detects the peak position of the out-side component signal at the stage when the unbalance amount calibration work is completed or in parallel therewith, while the phase difference detection circuit 65 detects the signal from the weight position storage circuit 64. The phase shifters 27 and 28 are adjusted so that the phase difference becomes zero.

この実施例によれば、アウト側、及びイン側の感度をそ
れぞれ独立に調整するため、感度調整器の構造を簡素化
することができるばかりでなく、各サイドの感度を一層
正確に調整することができる。According to this embodiment, since the sensitivity on the out side and the sensitivity on the in side are independently adjusted, not only can the structure of the sensitivity adjuster be simplified, but the sensitivity on each side can be adjusted more accurately. You can

第７図は、本発明の第３実施例を示すものであって、図
中符号86、87は、それぞれ波形記憶回路で、各振動検出
器７、７からの信号波形を記憶することができる容量を
備えて回転位置をアドレスに、また振幅値をデータとし
て記憶するものである。88、89は、それぞれ差分演算回
路で、一方の入力端子には波形記憶回路86、87からの信
号が、また他方の入力端子には振動検出器７、７からの
信号が入力し、両信号を同期して取出し、そのの差分を
面分離回路31に出力するように構成されている。FIG. 7 shows a third embodiment of the present invention. In the figure, reference numerals 86 and 87 are waveform storage circuits, respectively, which can store the signal waveforms from the vibration detectors 7, 7. It has a capacity and stores a rotational position as an address and an amplitude value as data. Reference numerals 88 and 89 denote difference calculation circuits respectively. One input terminal receives signals from the waveform storage circuits 86 and 87, and the other input terminal receives signals from the vibration detectors 7 and 7. Are synchronously taken out, and the difference between them is output to the surface separation circuit 31.

次に、このように構成した装置の動作を第８図に示した
フローチャートに基づいて説明する。Next, the operation of the apparatus configured as described above will be described based on the flowchart shown in FIG.

先ず任意の被試験回転体、例えばこれから不釣合を測定
しようとするタイヤを回転軸２に固定し、スイッチS1を
図中接点ｂ側に切換える。First, an arbitrary rotating body to be tested, for example, a tire whose imbalance is to be measured is fixed to the rotating shaft 2, and the switch S1 is switched to the contact b side in the figure.

このような準備を終えた段階で、電源をONすると、アッ
プダウンカウンタ20の値が基準位置として記憶回路21に
格納される。基準位置の格納が終了した段階でモータ１
を所定回転数で回転させると、振動検出器７、７から今
装着されているタイヤの不釣合量に対応する信号が出力
し、これらの信号はそれぞれ第１、第３の波形記憶回路
86、87に格納される（第４図Ｉ、III）。When the power is turned on at the stage where such preparation is completed, the value of the up / down counter 20 is stored in the memory circuit 21 as the reference position. When the reference position is completely stored, the motor 1
Is rotated at a predetermined number of rotations, the vibration detectors 7 and 7 output signals corresponding to the unbalanced amount of the tires currently mounted, and these signals are respectively the first and third waveform storage circuits.
It is stored in 86 and 87 (Fig. 4, I and III).

第１回目の信号の取込みが終了した段階で、モータ１を
停止させ、既知量の錘をタイヤの一方の面、例えばアウ
ト側の基準点、例えばリムの最下点に装着し、このとき
の回転位置信号発生回路22の信号を錘位置記憶回路64に
格納する。When the first signal acquisition is completed, the motor 1 is stopped, and a known amount of weight is attached to one surface of the tire, for example, the reference point on the out side, for example, the lowest point of the rim. The signal of the rotational position signal generation circuit 22 is stored in the weight position storage circuit 64.

再びモータ１を回転させると、タイヤ本来の不釣合量に
起因する信号に重畳する形で、今、装着した錘に起因す
る不釣合を表わす信号が振動検出器７、７から出力す
る。この検出信号と位相を合せた状態、つまり波形記憶
回路86、87に記憶されているデータのアドレスと、回転
中の被試験体の回転位置との同期を取りながら波形記憶
回路86、87から信号を読出すと、これら差分演算回路8
8、89から出力した信号は、面分離回路31により、分離
比率の適、不適に関わりなくアウト側成分信号とイン側
成分信号に分離されて整流平滑回路38、39により直流信
号に変換され、不釣合量を表わす信号に変換される。When the motor 1 is rotated again, the vibration detectors 7, 7 output signals representing the imbalance caused by the weight that is currently mounted, in a form superimposed on the signal caused by the original imbalance of the tire. Signals from the waveform storage circuits 86 and 87 are synchronized with this detection signal, that is, the address of the data stored in the waveform storage circuits 86 and 87 and the rotational position of the rotating DUT are synchronized. Are read, the difference calculation circuit 8
The signals output from 8 and 89 are separated by the surface separation circuit 31 into an out-side component signal and an in-side component signal regardless of whether or not the separation ratio is appropriate, and converted into DC signals by the rectifying and smoothing circuits 38 and 39. It is converted into a signal representing the unbalance amount.

ところで、前述したように既知量の錘をアウト側だけに
取付けていて、イン側の不釣合量は、相対的に零、つま
り第１回目の信号と第２回目の信号との間に差が生じて
はならないから、比較回路61からの信号が零となるよう
に分離比率調整器33を調整する。By the way, as described above, the weight of the known amount is attached only to the OUT side, and the unbalance amount on the IN side is relatively zero, that is, there is a difference between the signal of the first time and the signal of the second time. Therefore, the separation ratio adjuster 33 is adjusted so that the signal from the comparison circuit 61 becomes zero.

このようにして、錘を装着していない方の出力が零とな
るよう感度調整が終了した段階で、前述の工程と同様に
回転体を回転させた状態で再び波形記憶回路86、87から
波形信号を読出して面分離回路31に出力し、これのアウ
ト側成分信号、つまり錘を装着した側の成分信号が、錘
の重量に対応する不釣合量となるように、感度調整器3
4、35を調整する。In this way, at the stage where the sensitivity adjustment is completed so that the output without the weight is zero, the waveforms are again output from the waveform storage circuits 86 and 87 in the state where the rotor is rotated as in the above process. The signal is read out and output to the surface separation circuit 31, and the sensitivity adjuster 3 so that the out-side component signal thereof, that is, the component signal on the side on which the weight is mounted becomes an unbalance amount corresponding to the weight of the weight.
Adjust 4, 35.

この実施例によれば、波形記憶回路の記憶容量を可及的
に小さくしてコストの引下げを図ることができる。According to this embodiment, the storage capacity of the waveform storage circuit can be made as small as possible to reduce the cost.

なお、上述の実施例においては、最初に被測定回転体自
体の、ついで錘を装着した状態での信号を得るようにし
ているが、逆の手順により信号を得るようにしても同様
の作用を奏することは明らかである。In the above-described embodiment, the signal is first obtained from the rotating body to be measured itself, and then the weight is attached. However, even if the signal is obtained by the reverse procedure, the same operation is performed. It is clear that it will play.

なお、上述の実施例においては、サポートロッドにより
垂設された直動型の動釣合試験装置に例を採って説明し
たが、第９図に示したように、モータ90の回転軸91に被
試験回転体装着具92を直接取付けるとともに、被試験回
転体取付具側を底辺とする三角形を想定し、各頂点に計
３個の振動検出器93、93、93を配設し、これら振動検出
器を介してバネ部材94、94、94により基台95に弾性的に
取付けてなる形式のものや、また第10図に示したように
被試験体駆動軸96を軸受97で軸支して振動検出器98、98
を介して基台99に固定するととに、伝導機構100により
モータ101に接続してなる形式のものに適用しても同様
の作用を奏することは明らかである。It should be noted that, in the above-mentioned embodiment, the linear motion type dynamic balance test device vertically hung by the support rod has been described as an example, but as shown in FIG. In addition to directly mounting the rotating body to-be-tested fitting 92, assuming a triangle with the rotating body to-be-tested fitting side being the base, a total of three vibration detectors 93, 93, 93 are arranged at each apex, and these vibrations are generated. A type in which a spring member 94, 94, 94 is elastically attached to a base 95 through a detector, or a test subject drive shaft 96 is rotatably supported by a bearing 97 as shown in FIG. Vibration detector 98, 98
It is clear that the same effect can be obtained by applying the structure to the motor 101 by the conduction mechanism 100 while fixing it to the base 99 via the.

（発明の効果）以上説明したように本発明においては、被試験体の取付
けが可能で、駆動手段により回転駆動される回転軸を、
軸方向に一定の距離でもって２つの振動検出手段を介し
て支持し、また回転軸に位置検出手段を取付けてなる試
験装置本体と、各振動検出手段からの信号の比率を調整
する面分離比率調整手段を備えて各振動検出手段からの
信号をアウト側の不釣合いに起因する信号成分であるア
ウト側成分信号とイン側の不釣合いに起因する信号成分
であるイン側成分信号に分離する面分離回路と、イン側
成分信号とアウト側成分信号のレベルをそれぞれ調節す
る感度調整手段と、感度調整手段からの信号を整流平滑
して不釣合量を指示する手段と、位置検出手段からの信
号に基づいて不釣合位置を指示する手段とを備えた動釣
合試験装置に、任意の被試験体を取付けて駆動し、各振
動検出手段からの信号を記憶する工程と、被試験体のイ
ン側またはアウト側の一方にのみ既知重量の錘を装着し
た状態で駆動して各振動検出手段からの信号を記憶する
工程と、２つの工程により得た信号の差分を検出してア
ウト側成分信号とイン側成分信号に面分離する工程と、
錘を装着していない方のアウト側またはイン側の成分信
号のレベルが零となるように面分離比率調整手段により
面分離比を調整する工程と、また錘を装着した方のイン
側またはアウト側の成分信号のレベルが錘の重量に一致
するように感度調整手段によりイン側またはアウト側の
成分信号のレベルを調整する工程とを備えたので、被試
験体そのものを校正用の回転体として使用できて校正作
業用に誂えた回転体の準備や、校正用の回転体の着脱作
業が不要となり、動釣合試験装置の校正作業を簡素化す
ることができる。(Effect of the Invention) As described above, in the present invention, the rotating shaft to which the device under test can be attached and which is rotationally driven by the drive means is
A surface separation ratio that adjusts the ratio of the signals from the test apparatus main body, which is supported by two vibration detection means at a fixed distance in the axial direction, and the position detection means is attached to the rotary shaft. A surface provided with adjusting means for separating the signal from each vibration detecting means into an out-side component signal which is a signal component resulting from imbalance on the out side and an in-side component signal which is a signal component resulting from imbalance on the in side. A separation circuit, sensitivity adjusting means for adjusting the levels of the in-side component signal and the out-side component signal, a means for indicating the unbalance amount by rectifying and smoothing the signal from the sensitivity adjusting means, and a signal from the position detecting means. Based on the dynamic unbalance test device equipped with means for indicating the unbalanced position, the step of driving by attaching an arbitrary test object, storing the signal from each vibration detection means, and the in-side of the test object or out A step of driving a weight having a known weight attached to only one of them to store a signal from each vibration detecting means, and detecting a difference between the signals obtained in the two steps to detect an out-side component signal and an in-side component A step of surface separation into signals,
A step of adjusting the surface separation ratio by means of the surface separation ratio adjusting means so that the level of the component signal on the outer side or the inner side where the weight is not attached becomes zero; Since there is a step of adjusting the level of the component signal on the in side or the out side by the sensitivity adjusting means so that the level of the component signal on the side matches the weight of the weight, the DUT itself can be used as a rotating body for calibration. It is not necessary to prepare a rotating body that can be used and can be customized for calibration work, or to attach and detach a rotating body for calibration, and it is possible to simplify the calibration work of the dynamic balance testing device.

【図面の簡単な説明】[Brief description of drawings]

第１図（イ）（ロ）は、それぞれ本発明が適用される動
釣合試験装置の要部を示す上面図と側面図、第２図は信
号処理装置の一実施例を示すブロック図、第３、４図は
同上装置の動作を示すフローチャートと波形図、第５、
６図、第７、８図は、それぞれ本発明の他の実施例を示
すブロック図と、その動作を示すフローチャート、及び
第９、10図は本発明の他の実施例を示す要部の側面図で
ある。１……モータ、２……回転軸３……タイヤ取付具、４……基台５……サポートロッド、５……ロッド６……振動検出器、27、28……移相器 29、30……不釣合位置表示器 33……面分離比率調整器 34、35……感度調整器 40、41……不釣合量表示器 60、61……比較器1 (a) and 1 (b) are a top view and a side view, respectively, showing a main part of a dynamic balance testing device to which the present invention is applied, and FIG. 2 is a block diagram showing an embodiment of a signal processing device. 3 and 4 are a flow chart and a waveform diagram showing the operation of the above apparatus, FIG.
FIGS. 6, 7 and 8 are block diagrams showing another embodiment of the present invention, a flow chart showing the operation thereof, and FIGS. 9 and 10 are side views of essential parts showing another embodiment of the present invention. It is a figure. 1 ... Motor, 2 ... Rotating shaft 3 ... Tire mounting fixture, 4 ... Base 5 ... Support rod, 5 ... Rod 6 ... Vibration detector, 27, 28 ... Phase shifter 29, 30 …… Unbalance position indicator 33 …… Surface separation ratio adjuster 34,35 …… Sensitivity adjuster 40,41 …… Unbalance amount indicator 60,61 …… Comparator

Claims

【特許請求の範囲】[Claims]

【請求項１】被試験体の取付けが可能で、駆動手段によ
り回転駆動される回転軸を、軸方向に一定の距離でもっ
て２つの振動検出手段を介して支持し、また前記回転軸
に位置検出手段を取付けてなる試験装置本体と、前記各
振動検出手段からの信号の比率を調整する面分離比率調
整手段を備えて前記各振動検出手段からの信号をアウト
側の不釣合いに起因する信号成分であるアウト側成分信
号とイン側の不釣合いに起因する信号成分であるイン側
成分信号に分離する面分離回路と、イン側成分信号とア
ウト側成分信号のレベルをそれぞれ調節する感度調整手
段と、前記感度調整手段からの信号を整流平滑して不釣
合量を指示する手段と、前記位置検出手段からの信号に
基づいて不釣合位置を指示する手段とを備えた動釣合試
験装置に、任意の被試験体を取付けて駆動し、前記各振動検出手段
からの信号を記憶する工程と、前記被試験体のイン側ま
たはアウト側の一方にのみ既知重量の錘を装着した状態
で駆動して前記各振動検出手段からの信号を記憶する工
程と、前記２つの工程により得た信号の差分を検出して
アウト側成分信号とイン側成分信号に面分離する工程
と、前記錘を装着していない方のアウト側またはイン側
の成分信号のレベルが零となるように前記面分離比率調
整手段により面分離比を調整する工程と、また前記錘を
装着した方のイン側またはアウト側の成分信号のレベル
が前記錘の重量に一致するように前記感度調整手段によ
りイン側またはアウト側の成分信号のレベルを調整する
工程とからなる動釣合試験装置における校正方法。1. A test object can be attached to a rotary shaft, which is rotatably driven by a driving device, supported by two vibration detecting devices at a fixed distance in the axial direction and positioned on the rotary shaft. A test apparatus main body equipped with detection means, and a surface separation ratio adjusting means for adjusting the ratio of signals from the respective vibration detecting means are provided, and the signals from the respective vibration detecting means are caused by imbalance on the out side. A surface separation circuit for separating an out-side component signal, which is a component, into an in-side component signal, which is a signal component caused by imbalance on the in-side, and a sensitivity adjusting means for adjusting the levels of the in-side component signal and the out-side component signal, respectively. And a means for instructing an unbalance amount by rectifying and smoothing a signal from the sensitivity adjusting means, and a means for instructing an unbalanced position based on a signal from the position detecting means. of Attaching and driving the DUT, storing the signal from each of the vibration detecting means, and driving the DUT with a weight of known weight attached to only one of the in-side and the out-side of the DUT. A step of storing a signal from each vibration detecting means, a step of detecting a difference between the signals obtained by the two steps and surface-separating into an out-side component signal and an in-side component signal, and the weight is not attached. The step of adjusting the surface separation ratio by the surface separation ratio adjusting means so that the level of the component signal on the outer side or the inner side becomes zero, and the component signal on the in side or the outer side on which the weight is mounted. Of the component signal on the in side or the out side by the sensitivity adjusting means so that the level of the above becomes equal to the weight of the weight.

【請求項２】被試験体の取付けが可能で、駆動手段によ
り回転駆動される回転軸を、軸方向に一定の距離でもっ
て２つの振動検出手段を介して支持し、また前記回転軸
に位置検出手段を取付けてなる試験装置本体と、前記各
振動検出手段からの信号の比率を調整する面分離比率調
整手段を備えて前記各振動検出手段からの信号をアウト
側の不釣合いに起因する信号成分であるアウト側成分信
号とイン側の不釣合いに起因する信号成分であるイン側
成分信号に分離する面分離回路と、イン側成分信号とア
ウト側成分信号のレベルをそれぞれ調節する感度調整手
段と、前記感度調整手段からの信号を整流平滑して不釣
合量を指示する手段と、前記位置検出手段からの信号に
基づいて不釣合位置を指示する手段とを備えた動釣合試
験装置に、任意の被試験体を取付けて駆動し、前記各振動検出手段
からの信号を記憶する工程と、前記被試験体のイン側ま
たはアウト側の一方にのみ既知重量の錘を装着した状態
で駆動して前記各振動検出手段からの信号を記憶する工
程と、前記２つの工程により得た信号の差分を検出して
アウト側成分信号とイン側成分信号に面分離する工程
と、前記錘を装着していない方のアウト側またはイン側
の成分信号のレベルが零となるように前記面分離比率調
整手段により面分離比を調整する工程と、前記錘を装着
した方のイン側またはアウト側の成分信号のレベルが前
記錘の重量に一致するように前記感度調整手段によりイ
ン側またはアウト側の成分信号のレベルを調整する工程
と、被試験体のイン側及びアウト側と前記各振動検出手
段との距離データに基づいて前記面分離比率調整手段の
面分離比を変更した後、前記錘を装着していないアウト
側またはイン側の成分信号のレベルが前記錘の重量と一
致するように前記感度調整手段によりアウトまたはイン
側の成分信号のレベルを調整する工程とからなる動釣合
試験装置における校正方法。2. A test subject can be mounted on the rotary shaft, which is rotatably driven by a driving device, supported by two vibration detecting devices at a fixed distance in the axial direction, and is positioned on the rotary shaft. A test apparatus main body equipped with detection means, and a surface separation ratio adjusting means for adjusting the ratio of signals from the respective vibration detecting means are provided, and the signals from the respective vibration detecting means are caused by imbalance on the out side. A surface separation circuit for separating an out-side component signal, which is a component, into an in-side component signal, which is a signal component caused by imbalance on the in-side, and a sensitivity adjusting means for adjusting the levels of the in-side component signal and the out-side component signal, respectively. And a means for instructing an unbalance amount by rectifying and smoothing a signal from the sensitivity adjusting means, and a means for instructing an unbalanced position based on a signal from the position detecting means. of Attaching and driving the DUT, storing the signal from each of the vibration detecting means, and driving the DUT with a weight of known weight attached to only one of the in-side and the out-side of the DUT. A step of storing a signal from each vibration detecting means, a step of detecting a difference between the signals obtained by the two steps and surface-separating into an out-side component signal and an in-side component signal, and the weight is not attached. The step of adjusting the surface separation ratio by the surface separation ratio adjusting means so that the level of the component signal on the outer side or the inner side becomes zero, and the component signal on the in side or the outer side on which the weight is mounted. Adjusting the level of the in-side or out-side component signal by the sensitivity adjusting means so that the level matches the weight of the weight, and the distance between the in-side and out-side of the DUT and each of the vibration detecting means. Based on data After changing the surface separation ratio of the surface separation ratio adjusting means, the sensitivity adjusting means outputs or adjusts the weight so that the level of the component signal on the outside or in side where the weight is not attached matches the weight of the weight. A method of calibrating a dynamic balance test apparatus, which comprises the step of adjusting the level of the component signal on the side.

【請求項３】被試験体の取付けが可能で、駆動手段によ
り回転駆動される回転軸を、軸方向に一定の距離でもっ
て２つの振動検出手段を介して支持し、また前記回転軸
に位置検出手段を取付けてなる試験装置本体と、前記各
振動検出手段からの信号の比率を調整する面分離比率調
整手段を備えて前記各振動検出手段からの信号をアウト
側の不釣合いに起因する信号成分であるアウト側成分信
号とイン側の不釣合いに起因する信号成分であるイン側
成分信号に分離する面分離回路と、イン側成分信号とア
ウト側成分信号のレベルをそれぞれ調節する感度調整手
段と、前記感度調整手段からの信号を整流平滑して不釣
合量を指示する手段と、前記位置検出手段からの信号に
基づいて不釣合位置を指示する手段を備えた動釣合試験
装置に、任意の被試験体を取付けて駆動し、前記各振動検出手段
からの信号を記憶する工程と、前記被試験体のイン側ま
たはアウト側の一方にのみ既知重量の錘を装着した状態
で駆動して前記各振動検出手段からの信号を得るととも
に、前記被試験体の回転に同期して前記記憶手段から信
号を読出しながら差分信号を検出してアウト側成分信号
とイン側成分信号とに面分離する工程と、前記錘を装着
していないアウト側またはイン側の成分信号のレベルが
零となるように前記面分離比率調整手段により面分離比
を調整する工程と、前記錘を装着したイン側またはアウ
ト側の成分信号のレベルが前記錘の重量に一致するよう
に前記感度調整手段によりイン側またはアウト側の成分
信号のレベルを調整する工程とからなる動釣合試験装置
における校正方法。3. A test subject can be mounted on the rotary shaft, which is rotatably driven by a driving device, supported by two vibration detecting devices at a fixed distance in the axial direction, and is positioned on the rotary shaft. A test apparatus main body equipped with detection means, and a surface separation ratio adjusting means for adjusting the ratio of signals from the respective vibration detecting means are provided, and the signals from the respective vibration detecting means are caused by imbalance on the out side. A surface separation circuit for separating an out-side component signal, which is a component, into an in-side component signal, which is a signal component caused by imbalance on the in-side, and a sensitivity adjusting means for adjusting the levels of the in-side component signal and the out-side component signal, respectively. And a dynamic balance test apparatus including means for rectifying and smoothing the signal from the sensitivity adjusting means to instruct an unbalance amount, and means for instructing an unbalance position based on the signal from the position detecting means. Cover A step of mounting and driving a test body and storing a signal from each of the vibration detecting means, and a step of driving with a weight of known weight attached to only one of the in-side and the out-side of the tested object A step of obtaining a signal from the vibration detecting means and detecting a difference signal while reading the signal from the storage means in synchronization with the rotation of the device under test to perform surface separation into an out-side component signal and an in-side component signal. Adjusting the surface separation ratio by the surface separation ratio adjusting means so that the level of the component signal on the outside or the inside without the weight attached becomes zero; and the inside or the outside on which the weight is installed. A method of calibrating in a dynamic balance testing device, comprising the step of adjusting the level of the component signal on the in side or the out side by the sensitivity adjusting means so that the level of the component signal of <1> matches the weight of the weight.

【請求項４】被試験体の取付けが可能で、駆動手段によ
り回転駆動される回転軸を、軸方向に一定の距離でもっ
て２つの振動検出手段を介して支持し、また前記回転軸
に位置検出手段を取付けてなる試験装置本体と、前記各
振動検出手段からの信号の比率を調整する面分離比率調
整手段を備えて前記各振動検出手段からの信号をアウト
側の不釣合いに起因する信号成分であるアウト側成分信
号とイン側の不釣合いに起因する信号成分であるイン側
成分信号に分離する面分離回路と、イン側成分信号とア
ウト側成分信号のレベルをそれぞれ調節する感度調整手
段と、前記感度調整手段からの信号を整流平滑して不釣
合量を指示する手段と、前記位置検出手段からの信号に
基づいて不釣合位置を指示する手段とを備えた動釣合試
験装置に、任意の被試験体のイン側またはアウト側の一方にのみ既
知重量の錘を取付けて駆動し、前記各振動検出手段から
の信号を記憶する工程と、前記錘を装着しないで前記被
試験体を駆動して前記各振動検出手段からの信号を得る
とともに、前記被試験体の回転に同期して前記記憶手段
から信号を読出しながら差分信号を検出してアウト側成
分信号とイン側成分信号とに面分離する工程と、前記錘
を装着していないアウト側またはイン側の成分信号のレ
ベルが零となるように前記面分離比率調整手段により面
分離比を調整する工程と、前記錘を装着したイン側また
はアウト側の成分信号のレベルが前記錘の重量に一致す
るように前記感度調整手段によりイン側またはアウト側
の成分信号のレベルを調整する工程とからなる動釣合試
験装置における校正方法。4. An object to be tested can be attached, and a rotary shaft rotatably driven by a drive means is supported at a fixed distance in the axial direction through two vibration detecting means, and is positioned on the rotary shaft. A test apparatus main body equipped with detection means, and a surface separation ratio adjusting means for adjusting the ratio of signals from the respective vibration detecting means are provided, and the signals from the respective vibration detecting means are caused by imbalance on the out side. A surface separation circuit for separating an out-side component signal, which is a component, into an in-side component signal, which is a signal component caused by imbalance on the in-side, and a sensitivity adjusting means for adjusting the levels of the in-side component signal and the out-side component signal, respectively. And a means for instructing an unbalance amount by rectifying and smoothing a signal from the sensitivity adjusting means, and a means for instructing an unbalanced position based on a signal from the position detecting means. of Attaching and driving a weight of known weight only to one of the in-side and the out-side of the DUT, and storing the signal from each of the vibration detecting means, and driving the DUT without mounting the weight. And a signal from each of the vibration detection means is obtained, and a differential signal is detected while reading the signal from the storage means in synchronization with the rotation of the device under test to separate the surface into an out-side component signal and an in-side component signal. The step of adjusting the surface separation ratio by the surface separation ratio adjusting means so that the level of the component signal on the outer side or the inner side where the weight is not mounted becomes zero, and the inner side on which the weight is mounted. Or a method of calibrating in a dynamic balance test apparatus, comprising the step of adjusting the level of the in-side or out-side component signal by the sensitivity adjusting means so that the level of the out-side component signal matches the weight of the weight.

【請求項５】前記既知重量の錘を装着した位置を基準位
置として記憶する工程と、前記各振動検出手段からのピ
ーク信号が前記基準位置に一致するように不釣合位置信
号の位相を調整する工程とを含む特許請求の範囲第１乃
至４項のいずれか１項に記載の動釣合試験装置における
校正方法。5. A step of storing a position where the weight of the known weight is attached as a reference position, and a step of adjusting a phase of an unbalanced position signal so that a peak signal from each of the vibration detecting means coincides with the reference position. A calibration method in a dynamic balance testing device according to any one of claims 1 to 4, further comprising:

【請求項６】被試験体の取付けが可能で、駆動手段によ
り回転駆動される回転軸を、軸方向に一定の距離でもっ
て２つの振動検出手段を介して支持し、また前記回転軸
に位置検出手段を取付けてなる試験装置本体と、前記各
振動検出手段からの信号の比率を調整する面分離比率調
整手段を備えて前記振動検出手段からの信号をアウト側
の不釣合いに起因する信号成分であるアウト側成分信号
とイン側の不釣合いに起因する信号成分であるイン側成
分信号に分離する面分離回路と、イン側成分信号とアウ
ト側成分信号のレベルをそれぞれ調節する感度調整手段
と、前記感度調整手段からの信号を整流平滑して不釣合
量を指示する手段と、前記位置検出手段からの信号に基
づいて不釣合位置を指示する手段を備えた動釣合試験装
置において、被試験体のイン側またはアウト側の一方にのみ既知重量
の錘を装着した状態での前記各振動検出手段からの信号
と前記錘を装着していない状態での前記各振動検出手段
からの信号とを記憶できる容量を有する記憶手段と、前
記錘を装着した状態での前記記憶手段の信号と前記錘を
装着しない状態での前記記憶手段の信号との差分信号を
検出する差分検出手段と、前記差分信号に基づいて前記
錘を装着していないアウト側またはイン側の成分信号の
レベルが零となるように面分離比を前記面分離比率調整
手段により調整し、また前記錘を装着したイン側または
アウト側の成分信号のレベルが前記錘の重量に一致する
ようにイン側またはアウト側の成分信号のレベルを前記
感度調整手段により調整する制御手段とを備えてなる動
釣合試験装置。6. An object to be tested can be mounted, and a rotary shaft which is rotationally driven by a drive means is supported by two vibration detecting means at a fixed distance in the axial direction, and is positioned on the rotary shaft. A test apparatus main body equipped with a detection means and a surface separation ratio adjusting means for adjusting a ratio of signals from the respective vibration detecting means are provided, and the signal from the vibration detecting means is a signal component caused by imbalance on the out side. A surface separation circuit that separates an out-side component signal that is an in-side component signal that is a signal component caused by imbalance on the in-side, and a sensitivity adjusting unit that adjusts the levels of the in-side component signal and the out-side component signal, respectively. A dynamic balance test apparatus comprising means for rectifying and smoothing a signal from the sensitivity adjusting means to indicate an unbalanced amount, and means for indicating an unbalanced position based on a signal from the position detecting means, A signal from each of the vibration detecting means in a state in which a weight having a known weight is attached to only one of the in-side and the out-side of the specimen, and a signal from each of the vibration detecting means in a state in which the weight is not attached. A storage means having a capacity capable of storing the above; a difference detection means for detecting a difference signal between a signal of the storage means with the weight attached and a signal of the storage means without the weight attached; Based on the differential signal, the surface separation ratio is adjusted by the surface separation ratio adjusting means so that the level of the component signal on the outside or the inside where the weight is not mounted becomes zero, and the inside side on which the weight is mounted is adjusted. Alternatively, the dynamic balance test apparatus is provided with a control means for adjusting the level of the in-side or out-side component signal by the sensitivity adjusting means so that the level of the out-side component signal matches the weight of the weight.

【請求項７】被試験体の取付けが可能で、駆動手段によ
り回転駆動される回転軸を、軸方向に一定の距離でもっ
て２つの振動検出手段を介して支持し、また前記回転軸
に位置検出手段を取付けてなる試験装置本体と、前記各
振動検出手段からの信号の比率を調整する面分離比率調
整手段を備えて前記各振動検出手段からの信号をアウト
側の不釣合いに起因する信号成分であるアウト側成分信
号とイン側の不釣合いに起因する信号成分であるイン側
成分信号に分離する面分離回路と、イン側成分信号とア
ウト側成分信号のレベルをそれぞれ調節する感度調整手
段と、前記感度調整手段からの信号を整流平滑して不釣
合量を指示する手段と、前記位置検出手段からの信号に
基づいて不釣合位置を指示する手段を備えた動釣合試験
装置において、被試験体のイン側、またはアウト側の一方にのみ既知重
量の錘を装着した状態での前記各振動検出手段からの信
号と、前記錘を装着していない状態での前記各振動検出
手段からの信号とを記憶できる容量を有する記憶手段
と、前記錘を装着した状態での前記記憶手段の信号と前
記錘を装着しない状態での前記記憶手段の信号との差分
信号を検出する差分検出手段と、前記差分信号に基づい
て前記錘を装着していないアウト側またはイン側の成分
信号のレベルが零となるように面分離比を前記面分離比
調整手段により調整し、また前記錘を装着したイン側、
またはアウト側の成分信号のレベルが前記錘の重量と一
致するようにイン側またはアウト側の成分信号のレベル
を前記感度調整手段により調整し、さらに被試験体のイ
ン側及びアウト側と前記各振動検出手段との距離データ
に基づいて前記面分離比率調整手段の面分離比を調整し
た後、前記錘を装着していないアウト側またはイン側の
成分信号のレベルが前記錘の重量に一致するようにアウ
ト側またはイン側の成分信号のレベルを前記感度調整手
段により調整する制御手段とを備えてなる動釣合試験装
置。7. A test subject can be mounted on the rotary shaft, which is rotatably driven by a driving device, supported by two vibration detecting devices at a fixed distance in the axial direction, and positioned on the rotary shaft. A test apparatus main body equipped with detection means, and a surface separation ratio adjusting means for adjusting the ratio of signals from the respective vibration detecting means are provided, and the signals from the respective vibration detecting means are caused by imbalance on the out side. A surface separation circuit for separating an out-side component signal, which is a component, into an in-side component signal, which is a signal component caused by imbalance on the in-side, and a sensitivity adjusting means for adjusting the levels of the in-side component signal and the out-side component signal, respectively. A dynamic imbalance test apparatus comprising means for rectifying and smoothing a signal from the sensitivity adjusting means to instruct an unbalance amount, and means for instructing an unbalance position based on a signal from the position detecting means, A signal from each of the vibration detecting means in a state where a weight having a known weight is attached to only one of the in-side and the out-side of the test body, and from each of the vibration detecting means in a state in which the weight is not attached. Storage means having a capacity capable of storing a signal, and difference detection means for detecting a difference signal between a signal of the storage means with the weight attached and a signal of the storage means without the weight attached , The surface separation ratio is adjusted by the surface separation ratio adjusting means so that the level of the component signal on the outside or the inside where the weight is not mounted is zero based on the difference signal, and the weight is mounted. Inn side,
Alternatively, the level of the in-side or out-side component signal is adjusted by the sensitivity adjusting means so that the level of the out-side component signal matches the weight of the weight, and the in-side and out-side of the DUT and each of the above After the surface separation ratio of the surface separation ratio adjusting means is adjusted based on the distance data with the vibration detection means, the level of the component signal on the outside or the inside where the weight is not attached matches the weight of the weight. Thus, the dynamic balance test apparatus is provided with the control means for adjusting the level of the component signal on the OUT side or IN side by the sensitivity adjusting means.

【請求項８】被試験体の取付けが可能で、駆動手段によ
り回転駆動される回転軸を、軸方向に一定の距離でもっ
て２つの振動検出手段を介して支持し、また前記回転軸
に位置検出手段を取付けてなる試験装置本体と、前記各
振動検出手段からの信号の比率を調整する面分離比率調
整手段を備えて振動検出手段からの信号をアウト側の不
釣合いに起因する信号成分であるアウト側成分信号とイ
ン側の不釣合いに起因する信号成分であるイン側成分信
号に分離する面分離回路と、イン側成分信号とアウト側
成分信号のレベルをそれぞれ調節する感度調整手段と、
前記感度調整手段からの信号を整流平滑して不釣合量を
指示する手段と、前記位置検出手段からの信号に基づい
て不釣合位置を指示する手段とを備えた動釣合試験装置
において、被試験体に錘を装着しない状態における前記各振動検出
手段からの信号を少なくとも１測定期間分記憶できる容
量を有する記憶手段と、前記被試験体のイン側またはア
ウト側の一方にのみ既知重量の錘を装着して前記各振動
検出手段から得た信号と前記被試験体の回転に同期して
前記記憶手段から読出した信号との差分信号を検出する
差分検出手段と、前記差分信号に基づいて前記錘を装着
していないアウト側またはイン側の成分信号のレベルが
零となるように面分離比を前記面分離比率調整手段によ
り調整し、また前記錘を装着したイン側またはアウト側
の成分信号のレベルが前記錘の重量に一致するようにイ
ン側またはアウト側の成分信号のレベルを前記感度調整
手段により調整する制御手段とを備えてなる動釣合試験
装置。8. A test subject can be mounted on the rotary shaft, which is rotatably driven by a driving device, supported by two vibration detecting devices at a fixed distance in the axial direction, and positioned on the rotary shaft. The test apparatus main body having the detection means attached thereto and the surface separation ratio adjusting means for adjusting the ratio of the signals from the respective vibration detecting means are provided, and the signal from the vibration detecting means is a signal component due to the imbalance on the out side. A surface separation circuit that separates an out-side component signal and an in-side component signal that is a signal component due to imbalance on the in-side, and sensitivity adjusting means that adjusts the levels of the in-side component signal and the out-side component signal, respectively.
A dynamic balance test apparatus comprising: a unit for rectifying and smoothing a signal from the sensitivity adjusting unit to instruct an unbalance amount; and a unit for instructing an unbalance position based on a signal from the position detecting unit. A storage unit having a capacity capable of storing a signal from each of the vibration detection units for at least one measurement period in a state in which no weight is attached to the weight, and a weight having a known weight attached to only one of the in-side and the out-side of the DUT. Then, the difference detection means for detecting a difference signal between the signal obtained from each of the vibration detection means and the signal read from the storage means in synchronization with the rotation of the DUT, and the weight based on the difference signal. The surface separation ratio is adjusted by the surface separation ratio adjusting means so that the level of the component signal on the outside or inside which is not mounted is zero, and the component on the inside or outside where the weight is mounted is adjusted. A dynamic balance test apparatus comprising: a control unit that adjusts the level of a component signal on the in side or the out side by the sensitivity adjusting unit so that the signal level matches the weight of the weight.

【請求項９】被試験体の取付けが可能で、駆動手段によ
り回転駆動される回転軸を、軸方向に一定の距離でもっ
て２つの振動検出手段を介して支持し、また前記回転軸
に位置検出手段を取付けてなる試験装置本体と、前記各
振動検出手段からの信号の比率を調整する面分離比率調
整手段を備えて前記各振動検出手段からの信号をアウト
側の不釣合いに起因する信号成分であるアウト側成分信
号とイン側の不釣合いに起因する信号成分であるイン側
成分信号に分離する面分離回路と、イン側成分信号とア
ウト側成分信号のレベルをそれぞれ調節する感度調整手
段と、前記感度調整手段からの信号を整流平滑して不釣
合量を指示する手段と、前記位置検出手段からの信号に
基づいて不釣合位置を指示する手段とを備えた動釣合試
験装置において、被試験体のイン側またはアウト側の一方にのみ既知重量
の錘を装着した状態における前記各振動検出手段からの
信号を少なくとも１測定期間分記憶できる容量を有する
記憶手段と、前記被試験体に前記錘を装着しない状態で
前記各振動検出手段から得た信号と前記被試験体の回転
に同期して前記記憶手段から得た信号との差分信号を検
出する差分検出手段と、前記差分信号に基づいて前記錘
を装着していないアウト側またはイン側の成分信号のレ
ベルが零となるように面分離比を前記面分離比率調整手
段により調整し、また前記錘を装着したイン側またはア
ウト側の成分信号のレベルが前記錘の重量に一致するよ
うにイン側またはアウト側の成分信号のレベルを前記感
度調整手段により調整する制御手段とを備えてなる動釣
合試験装置。9. A test object can be attached to the rotary shaft, which is rotatably driven by a driving means, supported by two vibration detecting means at a fixed distance in the axial direction, and positioned on the rotary shaft. A test apparatus main body equipped with detection means, and a surface separation ratio adjusting means for adjusting the ratio of signals from the respective vibration detecting means are provided, and the signals from the respective vibration detecting means are caused by imbalance on the out side. A surface separation circuit for separating an out-side component signal, which is a component, into an in-side component signal, which is a signal component caused by imbalance on the in-side, and a sensitivity adjusting means for adjusting the levels of the in-side component signal and the out-side component signal, respectively. In the dynamic imbalance test apparatus, including means for rectifying and smoothing the signal from the sensitivity adjusting means to instruct an unbalance amount, and means for instructing an unbalance position based on the signal from the position detecting means, A storage means having a capacity capable of storing a signal from each of the vibration detection means for at least one measurement period when a weight having a known weight is attached to only one of the in-side and the out-side of the DUT; Difference detecting means for detecting a difference signal between the signal obtained from each of the vibration detecting means and the signal obtained from the storing means in synchronization with the rotation of the DUT without mounting the weight, and the difference signal Based on the above, the surface separation ratio is adjusted by the surface separation ratio adjusting means so that the level of the component signal on the OUT side or the IN side where the weight is not mounted becomes zero, and the IN side or the OUT side where the weight is mounted is adjusted. And a control means for adjusting the level of the component signal on the in-side or the out-side by the sensitivity adjusting means so that the level of the component signal of is matched with the weight of the weight.

【請求項１０】既知重量の錘を装着した位置を記憶する
錘位置記憶手段と、前記錘の装着による不釣合を示す位
置が、前記錘位置記憶手段に記憶されている位置に一致
するように不釣合位置信号の位相を調整する手段とを含
む特許請求の範囲第６乃至項９のいずれか１項に記載の
動釣合試験装置。10. A weight position storage means for storing a position where a weight of a known weight is mounted and a position indicating an unbalance due to the mounting of the weight are unbalanced so as to coincide with a position stored in the weight position storage means. 10. The dynamic balance test apparatus according to claim 6, further comprising means for adjusting the phase of the position signal.

【請求項１１】前記回転軸が駆動用モータに直結され
て、前記回転軸が前記駆動用モータを介して前記各振動
検出手段に支持されている特許請求の範囲第６乃至９項
のいずれか１項に記載の動釣合試験装置。11. The method according to claim 6, wherein the rotary shaft is directly connected to a drive motor, and the rotary shaft is supported by the respective vibration detection means via the drive motor. The dynamic balance test device according to item 1.

【請求項１２】前記回転軸が伝導機構を介して前記駆動
用モータに接続されていることを特徴とする特許請求の
範囲第６乃至９項のいずれか１項に記載の動釣合試験装
置。12. The dynamic balance test apparatus according to claim 6, wherein the rotary shaft is connected to the drive motor via a transmission mechanism. .