JPS6047909A - Measuring method of changing position and dimension by using sound - Google Patents
Measuring method of changing position and dimension by using soundInfo
- Publication number
- JPS6047909A JPS6047909A JP15595583A JP15595583A JPS6047909A JP S6047909 A JPS6047909 A JP S6047909A JP 15595583 A JP15595583 A JP 15595583A JP 15595583 A JP15595583 A JP 15595583A JP S6047909 A JPS6047909 A JP S6047909A
- Authority
- JP
- Japan
- Prior art keywords
- sound
- frequency
- level
- noise level
- vent
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
Description
【発明の詳細な説明】
発明の目的
変化する位置及び1法を測定する従来の方法としてダイ
ヤルインジケータ、ノギス、マイクロメータ、レーザ光
線、差動変圧器、ストレーンゲイジ等が使用されてきた
。しかしこれらの量定方法のあるものは測定精度が低く
1回転物体の11定には使用不可能であり、高価であり
、熟練を必用とする等の欠点を有しているが本案はこれ
らの欠点を除去する目的に於て考案されたものであり、
音Uを利用して変化する位置及び寸法を測定する方法で
ある。この方法は漠1定精度が高く、回転物体にも使用
可能であり、安価でかつ熟練を必用としない。物体の微
小な移動のit i11分野、機械の熱変形量のill
l分定、材料の熱膨張係数の411定分野、変位を感知
するセッサの分野等産業上の利用分野は従来の技術に比
べて極めて広い。DETAILED DESCRIPTION OF THE INVENTION Conventional methods for measuring changing positions and methods have used dial indicators, calipers, micrometers, laser beams, differential transformers, strain gauges, etc. However, some of these quantitative methods have drawbacks such as low measurement accuracy, cannot be used for 11 constants of a one-rotation object, are expensive, and require skill. It was devised for the purpose of eliminating defects,
This method uses sound U to measure changing positions and dimensions. This method has high precision, can be used even for rotating objects, is inexpensive, and does not require skill. It i11 field of minute movement of objects, ill of thermal deformation of machines
Compared to conventional techniques, the industrial application fields are extremely wide, such as the field of 411 constant determination of the coefficient of thermal expansion of materials, and the field of sensors for sensing displacement.
発明の構成
本案につき図面により説明するに、位置が左右に変化す
る物体(1)が小さい管(2)の開口端又は外周面にあ
けた穴に近接して置かれている。(3)は肢管の支持台
である。肢管の開口他端又は外周面の他の穴にノズル(
4)から一定圧力の空気を吹き伺は音を発生させる。空
気はコノプレノツ(5)からフィルタ(6)を通り圧力
調整器(7)によって圧力を変化させ圧力i!1(81
で圧力値を読む。音の発生しているパイプ端近くに置い
たマイクロボン(9)から騒音言1(]O)を通してス
ペクトラムアナライザ(11)により音の周波数、音圧
レヘル或いは騒音レベルを知ることが出来る。物体(1
)と肢管(2)との距離が変化すると音の周波数、音圧
レベル及び騒音レベルが変化するので音の周波数、音圧
レベル或いは騒音レベルをM1定して距離を知ることが
出来る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings, in which an object (1) whose position changes from side to side is placed in close proximity to the open end of a small tube (2) or a hole drilled in its outer circumferential surface. (3) is a support for the limb canal. Insert the nozzle (
4) Blowing air at a constant pressure from a source generates sound. The air passes through the filter (6) from Konopurenots (5), and the pressure is changed by the pressure regulator (7) until the pressure i! 1 (81
Read the pressure value. The frequency, sound pressure level, or noise level of the sound can be determined by the spectrum analyzer (11) through the noise signal 1 (]O) from the microbon (9) placed near the end of the pipe where the sound is generated. Object (1
) and the limb canal (2) changes, the sound frequency, sound pressure level, and noise level change, so the distance can be determined by fixing the sound frequency, sound pressure level, or noise level M1.
上記の如き原理に基づく本案の実施例としては高精度工
作機械の熱変形によるテーブルと主軸頭との変位を連続
的に測定しその変位量を直ちに補正して高精度加工を可
能にする。また、自動組立4次械において組立部品が本
体に近接したことを正確に知るセンサとして実用される
。さらに、材料の線膨張係数の81潤時に材料の膨張量
を正確に811定する方法として本案が使用される等広
い実用範囲を有するものである。管の長さ40mm、
管の内径2 mm 、圧力2Pa の空気を管の開口端
に吹きイ」けた場合に肢管と物体との距離100 jク
ロンで3050Hz、 50 EりCIL/で2650
Hz、 ’252クロノで2210 Hz と音の周
波数が変化する。As an embodiment of the present invention based on the above-mentioned principle, the displacement between the table and the spindle head due to thermal deformation of a high-precision machine tool is continuously measured and the amount of displacement is immediately corrected to enable high-precision machining. It is also used as a sensor for accurately detecting the proximity of assembled parts to the main body in automatic quaternary assembly machines. Furthermore, the present invention has a wide practical range, such as being used as a method for accurately determining the amount of expansion of a material when the coefficient of linear expansion of the material is 811. Tube length 40mm,
When the inner diameter of the tube is 2 mm and air with a pressure of 2 Pa is blown into the open end of the tube, the distance between the limb and the object is 3050 Hz at 100 cm, and 2650 at 50 CIL/.
Hz, the frequency of the sound changes to 2210 Hz in a '252 chronograph.
発明の効果
音の周波数、音圧レベル又は騒音レベルを411定する
ことによってミクロ7単位で正確に距離を知ることが可
能な上に、連続的に距離が変化する場合においても測定
が容易であるほか、物体(1)が回転していても無接触
状態で距離のflll定が可能である。さらに発生する
音響がパイプの寸法、空気圧、ノズルとパイプ端面の角
度によって決まる特定周波数の音であるため工場のよう
な暗騒音のある所においても使用可能であり、ill+
定に熟練を要さないほか、1(II定装置は簡単で、設
備や運転経費は安価であり、迅速に且つ正確に測定出来
る等の多大の実用効果を奏するものである。By determining the frequency, sound pressure level, or noise level of the sound effect of the invention, it is possible to accurately determine the distance in units of 7 microns, and it is also easy to measure even when the distance changes continuously. In addition, even if the object (1) is rotating, it is possible to determine the distance without contact. Furthermore, since the sound generated is a sound with a specific frequency determined by the pipe dimensions, air pressure, and the angle between the nozzle and the end of the pipe, it can be used even in places with background noise such as factories.
In addition to requiring no skill for measurement, the (1) II measurement device is simple, requires low equipment and operating costs, and has many practical effects such as being able to perform measurements quickly and accurately.
第1図は11面図、第2図は斜視図 Figure 1 is an 11th view, Figure 2 is a perspective view.
Claims (1)
音を発生させ、管の他端又は外周面に設けた他の穴に被
測定物体を近接せしめて両者の距離を変化することによ
り、又は管の他端から管の内面へ棒を挿入せしめ棒の位
置を変化させることにより、発生する音の周波数、音圧
レベル及び騒音レヘルが変化することを利用して変化す
る位置及びN法を1tll定する方法に係るものである
。Blowing air into the open end of a thin tube or a hole in the outer circumference generates sound, and brings the object to be measured close to the other end of the tube or another hole in the outer circumference to change the distance between the two. By inserting a rod into the inner surface of the tube from the other end and changing the position of the rod, the frequency, sound pressure level, and noise level of the generated sound change. This relates to a method for determining 1tll of the N method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15595583A JPS6047909A (en) | 1983-08-25 | 1983-08-25 | Measuring method of changing position and dimension by using sound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15595583A JPS6047909A (en) | 1983-08-25 | 1983-08-25 | Measuring method of changing position and dimension by using sound |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6047909A true JPS6047909A (en) | 1985-03-15 |
Family
ID=15617180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15595583A Pending JPS6047909A (en) | 1983-08-25 | 1983-08-25 | Measuring method of changing position and dimension by using sound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6047909A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62121307A (en) * | 1985-11-22 | 1987-06-02 | Yasushi Ishii | Acoustic displacement gauge |
JPH0819430A (en) * | 1994-07-06 | 1996-01-23 | Kyoshin Sangyo Kk | Leg mounting structure of furniture |
WO1998030870A1 (en) * | 1997-01-10 | 1998-07-16 | Simonne De Rijck | A detection system for the detection of the surface quality of brushes |
WO2001033167A1 (en) * | 1999-10-29 | 2001-05-10 | Robert Bosch Gmbh | Method and device for detecting surface irregularities |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5083056A (en) * | 1973-08-11 | 1975-07-04 |
-
1983
- 1983-08-25 JP JP15595583A patent/JPS6047909A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5083056A (en) * | 1973-08-11 | 1975-07-04 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62121307A (en) * | 1985-11-22 | 1987-06-02 | Yasushi Ishii | Acoustic displacement gauge |
JPH0819430A (en) * | 1994-07-06 | 1996-01-23 | Kyoshin Sangyo Kk | Leg mounting structure of furniture |
WO1998030870A1 (en) * | 1997-01-10 | 1998-07-16 | Simonne De Rijck | A detection system for the detection of the surface quality of brushes |
BE1010841A5 (en) * | 1997-01-10 | 1999-02-02 | Rijck Simonne De | A DETECTION SYSTEM FOR THE DETECTION OF IRREGULARITIES OR roughness OR MEASUREMENTS OF PHYSICAL SPECIFICATIONS OR POSITIONS OF THE SURFACES OF OBJECTS OR MATERIALS OR TOOLS. |
WO2001033167A1 (en) * | 1999-10-29 | 2001-05-10 | Robert Bosch Gmbh | Method and device for detecting surface irregularities |
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