JPS5875039A - Noncontact type torque measuring method and its device - Google Patents
Noncontact type torque measuring method and its deviceInfo
- Publication number
- JPS5875039A JPS5875039A JP57128837A JP12883782A JPS5875039A JP S5875039 A JPS5875039 A JP S5875039A JP 57128837 A JP57128837 A JP 57128837A JP 12883782 A JP12883782 A JP 12883782A JP S5875039 A JPS5875039 A JP S5875039A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- torque
- signals
- coupler
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 9
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 239000000523 sample Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 230000010363 phase shift Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 235000006693 Cassia laevigata Nutrition 0.000 description 1
- 241000522641 Senna Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229940124513 senna glycoside Drugs 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
- G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
- G01L3/109—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving measuring phase difference of two signals or pulse trains
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明はトルクを測定する方法及び装置に係抄、特に、
駆動機械と被駆動機械と管連結するシャフトのトルクを
非接触で測定する方法及び装置に係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for measuring torque, and in particular to a method and apparatus for measuring torque.
The present invention relates to a method and apparatus for non-contactly measuring the torque of a shaft that is pipe-connected to a driving machine and a driven machine.
駆動装置と被駆動装置との間の連結器の回転シャフトの
トルクｔＳ定することによ抄這転中の装置の効率會計算
することができる。又、このような読みｔ用いてこのよ
うな装置の電力サージ管検出できると共に、このような
サージによって駆動装置又は被駆動装置が損傷される前
に運転条件１変える必要があることを操作者に知らせる
こともできる。Ｉ！に、これらの読みを用いて、保守が
必要とされる時期を決定することができる。By determining the torque tS of the rotating shaft of the coupling between the drive and driven devices, the efficiency of the device during paper rolling can be calculated. Additionally, such readings can be used to detect power surge lines in such equipment and to alert the operator to the need to change operating conditions before such surges damage the drive or driven equipment. You can also let me know. I! These readings can then be used to determine when maintenance is required.
公知技術においては、種々の方法によってトルクｔ−測
定することが試みられている。このような試みの１つに
おいては、連結器の動き會補償するように連結器に付加
的なスリーブを取り付けた装置が提案されている。この
装置は一応は満足にトルクを測定するが、付加的なスリ
ーブによって連増加する。スリップリング管用いた歪計
も用いられているが、これらはすぐに摩耗してしまい、
正確な測定がこれらによって左右される場合には頻繁に
交換することが必要である。又、連結器の内部に信号送
信ａｔ配装することも提案されている。In the prior art, various methods have been used to measure torque t. In one such attempt, a device has been proposed in which an additional sleeve is attached to the coupler to compensate for movement of the coupler. Although this device measures the torque satisfactorily, the additional sleeve increases the torque. Strain gauges using slip ring tubes are also used, but these quickly wear out and
Frequent replacement is necessary if accurate measurements depend on them. It has also been proposed to provide a signal transmitter at inside the coupler.
然し乍ら、連結器はｊｌＩＩＢ的な環境で作動するもの
では々いので、しばしば送信器が故障し、装置全停止し
て連結Ｉｉ＋ヲ分解し送信器を交換することが必要とな
る。これにより装置の停止時間が高くつくことＫなる。However, since the coupler is not designed to operate in a jlIIB environment, the transmitter often fails and it is necessary to shut down the entire system, disassemble the coupler Ii+, and replace the transmitter. This results in high equipment downtime.
本発明は、連結器自体のコストも重量も増加することな
く電子装置の頻繁な保守も必要としないようなトルク測
定装置及び方法上提供する。The present invention provides an apparatus and method for measuring torque that does not increase the cost or weight of the coupler itself and does not require frequent maintenance of the electronics.
本発明においては、ピックアップＡ％Ｂ％Ｃ＆びＤによ
抄発生された信号の位相関係が電子回路によって比較及
び処１１きれ、それにより発生され良信号は連結Ｉｓｔ
介して送られ良真のトルクと々る。ｊＱ−７’（ピック
アップ）により発生された信号は、連結器の中心線が水
平方向又は垂直方向或いはその両方に動くことによ抄生
じた不所望な移相成分１含む。連結＠０中゛心線の動き
によね生じたこれ°らのエラー信号管除去する゛ために
、回路は、このような動きにより′各々のピックアップ
につて水平の動き１自動的に補償′：する。又、垂直の
動き゛を補償するために、回路は、センサＡ又はＢに鋳
起された進み移相會、これらセンサＡ及びＢと直径方向
に対向し°て取り付けられたセンサＣ又はＤＫ＃起され
た遅れ移相で自動的に打ち消゛す。In the present invention, the phase relationship of the signals generated by the pickups A%B%C & D is compared and processed by an electronic circuit, and the good signals generated thereby are connected to the Ist
Ryoma's torque is sent through it. The signal generated by the jQ-7' (pickup) contains an undesired phase shift component 1 caused by horizontal and/or vertical movement of the coupler centerline. In order to eliminate these error signal tubes caused by the movement of the conductor during the coupling @0, the circuit automatically compensates for the horizontal movement 1 for each pick-up by such movement: do. Also, to compensate for vertical motion, the circuit includes an advanced phase shift applied to sensor A or B, and sensor C or DK mounted diametrically opposite these sensors A and B. It is automatically canceled by the delayed phase shift caused.
かくて、修正信号を加えたクセ゛ンサ回路をバイアスし
直した抄する必要なく、連結器の中心線の動きに対する
水平及び垂直の補償が自動的に与えられる。 ゛
する。Thus, horizontal and vertical compensation for coupler centerline movement is automatically provided without the need to rebias and cut out the sensor circuit with the addition of a correction signal. Do it.
、ｔＩ図を説明すれ′げ、参照番号１０で一般的に示さ
れ九連結器は、外方に延びたギヤー１６及び１ｓｔ有す
るハブ１２及び１４を備えている。ハブ１２及び１４は
キー＃ｌ（図示せず）の、ような一般の手段により駆動
シャフト２０及び被駆動シャフト２２に取り付けられる
。ハブ１２及び１４の外方に延びたギヤ歯１６及び１Ｂ
に作動係合しているのは、スリーブ２８及び３０の外方
に延びたギヤ歯２４及び２６である。スリーブ２８及び
６０はボルト（図示せず）のような一般の手段によりス
ヘニサ６２に作動連結される。スリーブ２８と５０との
間でスペーサ３２に生じるねじれは、駆動シャフト２０
から被駆動シャフト２２へ伝達されるトルクに正比例す
る。シャフトの中心線が水平方向及び／又は垂直方向に
動くことにより生じるエラー信号もトルク信号として現
われ、真のトルク値を得るためＫはこれを除去゛しなけ
ればならない。, tI Figures 1 and 2, the nine couplers, indicated generally by the reference numeral 10, include hubs 12 and 14 having outwardly extending gears 16 and 1st. Hubs 12 and 14 are attached to drive shaft 20 and driven shaft 22 by conventional means, such as with key #1 (not shown). Outwardly extending gear teeth 16 and 1B of hubs 12 and 14
In operative engagement are outwardly extending gear teeth 24 and 26 of sleeves 28 and 30. Sleeves 28 and 60 are operatively connected to strainer 62 by conventional means such as bolts (not shown). The twisting that occurs in the spacer 32 between the sleeves 28 and 50 causes the drive shaft 20
is directly proportional to the torque transmitted from to the driven shaft 22. Error signals caused by horizontal and/or vertical movement of the centerline of the shaft also appear as torque signals, which K must remove in order to obtain the true torque value.
第１図に示され友ように、２つの対称的なスロット模様
６４“及び３６がスペーサ３２の面に切られていて、ス
ペーサ３２の外面を周囲方向に延びている。このスロッ
ト模様はピッチ直径８．１２５インチ（２０，６４ｍ）
の６５個の歯より成る。As shown in FIG. 1, two symmetrical slot patterns 64'' and 36 are cut into the face of spacer 32 and extend circumferentially around the outer surface of spacer 32. 8.125 inches (20,64m)
It consists of 65 teeth.
スロット模様６４及び３６に接近して実質的に水平面内
に取り付けられているのは、４個の受動的な磁気ピック
アップＡ、Ｂ％Ｃ及びＤである。Mounted in the substantially horizontal plane in close proximity to slot patterns 64 and 36 are four passive magnetic pickups A, B%C and D.
これらのピックアップはスロット模様から約０．０６０
インチ（０，１５２ｍ）のところに置かれる。これらピ
ックアップの取や付けは、スペーサ３２の外面を取り巻
く円筒に取り付けるような一般のやり方で行なうことが
できる。These pickups are approximately 0.060 from the slot pattern.
(0,152 m). These pickups can be mounted in a conventional manner, such as by mounting them on a cylinder surrounding the outer surface of the spacer 32.
スペーサ３２が回転すると、スロット模様３４及び３６
により受動磁気ピックアップＡ％ Ｂ、 Ｃ及びＤに交
流信号が誘起される。このプローブ信号は第３図の増巾
器３８によって増巾される。各々のピックアップは、第
３図にピックアップＡＫ対して示され友ものと同様のプ
ローブ回路４０を有していることｔ理解され友い。増巾
され良信号はプローブ回路４０の電圧比較器４２へ送ら
れる。As spacer 32 rotates, slot patterns 34 and 36
AC signals are induced in the passive magnetic pickups A% B, C, and D. This probe signal is amplified by amplifier 38 of FIG. It is understood that each pickup has a probe circuit 40 similar to that shown for pickup AK in FIG. 3. The amplified good signal is sent to the voltage comparator 42 of the probe circuit 40.
この比較器４２の出力は、ピックアップＡからの交流信
号と同じゼロ交差点で切換わる方形波信号である。ピッ
クアップＢ、Ｃ及び４Ｄからの信号も一様に増巾され整
形されることを理解されたい。The output of this comparator 42 is a square wave signal that switches at the same zero crossing point as the AC signal from pickup A. It should be understood that the signals from pickups B, C and 4D are also uniformly amplified and shaped.
この方形波信号は次いでダイオードＤ１へ送られ、圧は
電圧分割１！Ｒ１及びＲ２によって低い作動レベルに減
少される。バッファ回路５ｏないし５３は信号調整を果
たし、低レベル論理回路５４．４４．５５及び４６を分
離及び保題するように働く゛。グローブＡ及びプローブ
Ｃの回路のインバータゲート５４及び５５は第４図のタ
イミング図から明らかなようにこれら信号の位相ｔ−質
えるように働く。This square wave signal is then sent to diode D1 and the voltage is divided by 1! It is reduced to a low operating level by R1 and R2. Buffer circuits 5o-53 provide signal conditioning and serve to isolate and protect low level logic circuits 54, 44, 55 and 46. Inverter gates 54 and 55 of the globe A and probe C circuits act to determine the phase t-of these signals, as seen from the timing diagram of FIG.
プローブＡ及びプロニブＢがらの信号はナントゲート４
４で合成される。同様に、プローブＣ及びＤからの波形
はナントゲート４６で合成される。The signals from Probe A and Pronib B are Nant Gate 4.
It is synthesized in 4. Similarly, the waveforms from probes C and D are combined at Nandt gate 46.
プローブＡ及びＢ並びにプローブＣ及びＤがらの合成さ
れた信号はナントゲート４８へ送られる。The combined signals from probes A and B and probes C and D are sent to the Nant gate 48.
垂直シフトが生じる前の一一ト４８の出力が第４図のタ
イミング図に信号Ｅとして示されている。The output of tip 48 before the vertical shift occurs is shown as signal E in the timing diagram of FIG.
又、スペーサシャフト３２の被駆動趨即ち負荷端に垂直
シフトが生じた後のゲート４８の出力が第４図に信号Ｅ
１として示されている。３６０’の回転電気角、即ち１
本の歯全体に対しては、Ｅの波形の平均値がＥｌの波形
の平均値に岬しいことに注意されたい。従って、被駆動
端での垂直方向のシャフト移動により生じ曳エラーは打
ち消され即ち除去されていることが明らかであろう。仁
れは駆動端での垂直方向シャフト移動についても言える
。ゲート４８の出力は、連結器の中心線の水平又は垂直
方向の動きにより誘起された成分が除去された信号であ
ると共に、連結器に与えられた真のトルクに変換できる
信号である。このような変換は、牙３図に示したよう表
一般の信号平均化回路で行なうことができる。Further, the output of the gate 48 after a vertical shift has occurred in the driven direction of the spacer shaft 32, that is, the load end, is the signal E shown in FIG.
1. 360' rotational electrical angle, i.e. 1
Note that for the entire book tooth, the average value of the E waveform is similar to the average value of the El waveform. It will therefore be apparent that the towing error caused by vertical shaft movement at the driven end has been canceled out or eliminated. The same applies to vertical shaft movement at the drive end. The output of gate 48 is a signal from which components induced by horizontal or vertical movement of the coupler centerline have been removed, and which can be converted into a true torque applied to the coupler. Such conversion can be performed by a general signal averaging circuit as shown in Figure 3.
連結器の中心線が水平方向に動くと、誘起される交流信
号の振巾Ｕ第５図に示したように変化する。補償が与え
られなければ、これらの振巾便化により出力信号の位相
が変化する。作動周波数は同じま＼であるから交流信号
のゼロ交差点だけは同じである。第３図の電圧比較器４
２はゼロ交差検出器及びパルスコンバータとして働いて
、グローブにより発生された交流信号音、スペーサ３２
の周波数即ち角度回転に正比例し九万形波信号に変換す
る。When the centerline of the coupler moves horizontally, the amplitude U of the induced alternating current signal changes as shown in FIG. Without compensation, these amplitudes change the phase of the output signal. Since the operating frequency remains the same, only the zero crossing point of the AC signal is the same. Voltage comparator 4 in Figure 3
2 acts as a zero-crossing detector and pulse converter, the AC signal tone generated by the globe, the spacer 32
The frequency is directly proportional to the angular rotation, and is converted into a 90,000-wave signal.
第５図を説明すれば、シャン）２０が垂直方向上方に動
くと、センサプローブＡＫ誘起される交流信号はシャフ
トの時計方向回転に対して正即ち進み方向に移相せしめ
られる。これに対し、プローブＡと直径方向に対向して
取り付けられたセンサプローブＣＫＩＩ起される信号は
負即ち遅れ方向に移相される。グローブＡの位相の進み
はグローブＣの位相の遅れとちょうど程度が同じであり
、これら２つの信号がナントゲート４８で合成されると
、正の位相及び負の移相が互いに打ち消し合うことにな
る。シャフト２２が垂直方向上方又は下方に動いた時の
プローブＢ及びプローブＤにも仁の現象が生じる。それ
故、シャフトの中心線の垂直方向の動きＫより生じる不
所望なエラー信号は除去され、シャフトのねじれに正比
例する真のトルク信号のみが残ることになる。Referring to FIG. 5, as the shaft 20 moves vertically upward, the alternating current signal induced by the sensor probe AK is phase shifted in a positive or advance direction with respect to clockwise rotation of the shaft. On the other hand, the signal generated by the sensor probe CKII, which is mounted diametrically opposite to the probe A, is phase-shifted in the negative or delayed direction. The phase advance of globe A is exactly the same as the phase lag of globe C, and when these two signals are combined in the Nant gate 48, the positive phase and negative phase shift cancel each other out. . When the shaft 22 moves vertically upward or downward, the phenomenon of burr also occurs in the probes B and D. Therefore, the undesired error signal resulting from the vertical movement K of the shaft centerline is eliminated, leaving only the true torque signal directly proportional to the shaft torsion.
本発明の好ましい実施例全説明したが、本発明の範囲か
ら逸脱せずに別のやり方でも本発明を実施できることが
理解されよう。 ゛Although preferred embodiments of the invention have been fully described, it will be understood that the invention may be practiced otherwise without departing from the scope of the invention.゛
第１図は本発明のトルク測定方法及び装置管用いた連結
器の部分断面側面図、
第２図は本発明のセンサ回路のブロック図、牙３図は本
発明のセンサ回路の回路図、第４図は本発明の回路のタ
イミング図、セして第５図は連結器の中心線の動きに対
する自動回路補償作用管示すグラフである。
１０・・・連結器 １２，１４・・・ハブ１６
．１８．２４．２６・・・ギヤ歯
２０・・・駆動シャフト ２２・・・被駆動シャフト
２８．３０・・・スリーブ ３２・・・スペーサ３４．
３６・・・スロット模様
Ａ％Ｂ％Ｃ％Ｄ・・・磁気ピックアップ（センナプロー
ブ）
３８・・・増巾器 ４０・・・プローブ回路４
２・・・電圧比較器Fig. 1 is a partial cross-sectional side view of a connector using the torque measuring method and device tube of the present invention; Fig. 2 is a block diagram of the sensor circuit of the present invention; Fig. 3 is a circuit diagram of the sensor circuit of the present invention; 5 is a timing diagram of the circuit of the present invention, and FIG. 5 is a graph illustrating automatic circuit compensation for movement of the coupler centerline. 10...Coupler 12, 14...Hub 16
．． 18.24.26...Gear tooth 20...Drive shaft 22...Driven shaft 28.30...Sleeve 32...Spacer 34.
36... Slot pattern A%B%C%D... Magnetic pickup (Senna probe) 38... Amplifier 40... Probe circuit 4
2...Voltage comparator
Claims (1)
でこれに接近して水平面内に取り付けられた複数個のピ
ックアップとｔ備え、これらピックアップは上記シャフ
トのスロット模様の回転により生じる信号を感知するも
のであり、 １！に、上記ピックアップにより感知された上記信号を
分析し、これらの信号を、上記シャフトに与えられたト
ルク會表わす信号に変換する回路手段と、 上記トルク信号をトルクの直接的な尺度として表示する
手段と′ｔＡ備することｖｔ特黴とする装置。 ２、センサグローブに誘起され九交流信号のゼａ交差点
を感知することによりシャフトの中心線の水平方向の動
Ｉ會効果的に補償する方法。 ３、連結器スペーサの両熾において連結器の片側に生じ
る移相信号管連結器の他儒の同じ移相信号で打ち消すこ
とによりシャフトの中心線の垂直方向の動きを正確に補
償する方法。 ４、上記シャツ）Ｋ複数のｌ１１ｍｇ！：切ったものよ
り成るスロット模様が２つある特許請求の範囲第１項に
記載の装置。 ５、回転シャフトのトルクを測定する方法において、 上記シャフトに複数のスロット模様を切り、上記模様の
回転により発生される信号を受動的なピックアップで感
知し、そして 上記信号管分析して、上記シャ７）Ｋ与えられたトルク
の尺度に変換すること１＊像とする方法。[Claims] 1. A device for measuring a torque tube of a rotating shaft, including a plurality of slot patterns formed on the shaft, and a center line of the shaft that is close to the center line of the slot pattern at both sides. a plurality of pickups mounted in a horizontal plane; these pickups sense signals generated by the rotation of the slot pattern of the shaft; 1! circuit means for analyzing said signals sensed by said pickup and converting these signals into signals representative of the torque applied to said shaft; and means for displaying said torque signals as a direct measure of torque. It is equipped with special equipment. 2. A method of effectively compensating for the horizontal movement of the centerline of the shaft by sensing the intersection point of the nine AC signals induced by the sensor globe. 3. Accurately compensate for the vertical movement of the shaft centerline by canceling out the same phase-shifted signal on the other side of the coupler with a phase-shifted signal occurring on one side of the coupler on both sides of the coupler spacer. 4. Shirt above) K multiple l11mg! 2. The device according to claim 1, wherein there are two slot patterns formed by cutting. 5. In the method of measuring the torque of a rotating shaft, cut a plurality of slot patterns on the shaft, detect the signal generated by the rotation of the pattern with a passive pickup, and analyze the signal tube to determine the torque of the shaft. 7) How to convert K to a given torque measure into 1* image.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31055181A | 1981-10-13 | 1981-10-13 | |
| US310551 | 1994-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5875039A true JPS5875039A (en) | 1983-05-06 |
Family
ID=23203021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57128837A Pending JPS5875039A (en) | 1981-10-13 | 1982-07-23 | Noncontact type torque measuring method and its device |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5875039A (en) |
| BE (1) | BE893972A (en) |
| DE (1) | DE3235122A1 (en) |
| FR (1) | FR2514500A1 (en) |
| GB (1) | GB2107880B (en) |
| IN (1) | IN156682B (en) |
| IT (1) | IT1153232B (en) |
| NL (1) | NL8203122A (en) |
| SE (1) | SE8204912L (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2595821B1 (en) * | 1986-03-12 | 1988-06-03 | Turbomeca | METHOD AND DEVICE FOR MEASURING THE TORQUE TRANSMITTED BY A SHAFT SUBJECT TO TEMPERATURE VARIATIONS |
| DE3619408A1 (en) * | 1986-06-09 | 1987-12-10 | Battelle Institut E V | ARRANGEMENT FOR THE PRODUCTION OF STRAIGHT-SYMMETRICAL SIGNALS |
| DE3907760A1 (en) * | 1989-03-10 | 1990-09-20 | Battelle Institut E V | Method and device for the faultless measurement of torque on a shaft |
| FR2738339B1 (en) * | 1995-08-31 | 1997-10-17 | Roulements Soc Nouvelle | DEVICE FOR MEASURING TORSION TORQUE OF A ROTATING SHAFT |
| US5763793A (en) * | 1997-01-16 | 1998-06-09 | Methode Electronics, Inc. | Error correcting torque sensor |
| DE19757007A1 (en) * | 1997-12-20 | 1998-08-20 | Bosch Gmbh Robert | Method of detecting torques on axle or shaft |
| DE69935750T2 (en) * | 1998-03-11 | 2007-08-16 | Honda Giken Kogyo K.K. | Pedal force detector for bicycle and procedure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB920107A (en) * | 1960-12-03 | 1963-03-06 | Nat Res Dev | Phase shift torquemeter |
| US3545265A (en) * | 1969-01-27 | 1970-12-08 | Terry E Mcilraith | Horsepower measuring apparatus |
| US3548649A (en) * | 1969-05-27 | 1970-12-22 | Simmonds Precision Products | Torque measurement system utilizing shaft deflection and phase displacement technique |
| GB1395911A (en) * | 1971-02-13 | 1975-05-29 | Hawker Siddeley Dynamics Eng | Torque measuring apparatus |
| GB1465734A (en) * | 1973-08-03 | 1977-03-02 | Gen Electric | Torque measuring apparatus |
-
1982
- 1982-07-23 JP JP57128837A patent/JPS5875039A/en active Pending
- 1982-07-29 BE BE0/208702A patent/BE893972A/en not_active IP Right Cessation
- 1982-08-02 IN IN903/CAL/82A patent/IN156682B/en unknown
- 1982-08-06 NL NL8203122A patent/NL8203122A/en not_active Application Discontinuation
- 1982-08-13 FR FR8214110A patent/FR2514500A1/en active Granted
- 1982-08-27 SE SE8204912A patent/SE8204912L/en not_active Application Discontinuation
- 1982-09-20 GB GB08226686A patent/GB2107880B/en not_active Expired
- 1982-09-22 DE DE19823235122 patent/DE3235122A1/en not_active Withdrawn
- 1982-10-12 IT IT23721/82A patent/IT1153232B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| FR2514500B1 (en) | 1985-03-22 |
| SE8204912D0 (en) | 1982-08-27 |
| BE893972A (en) | 1982-11-16 |
| GB2107880A (en) | 1983-05-05 |
| IN156682B (en) | 1985-10-12 |
| IT8223721A0 (en) | 1982-10-12 |
| SE8204912L (en) | 1983-04-14 |
| DE3235122A1 (en) | 1983-04-28 |
| GB2107880B (en) | 1985-08-21 |
| NL8203122A (en) | 1983-05-02 |
| FR2514500A1 (en) | 1983-04-15 |
| IT1153232B (en) | 1987-01-14 |
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