JPS57211022A - Detector of resonance point - Google Patents
Detector of resonance pointInfo
- Publication number
- JPS57211022A JPS57211022A JP9534281A JP9534281A JPS57211022A JP S57211022 A JPS57211022 A JP S57211022A JP 9534281 A JP9534281 A JP 9534281A JP 9534281 A JP9534281 A JP 9534281A JP S57211022 A JPS57211022 A JP S57211022A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- driving
- resonance frequency
- electric signal
- suddenly
- 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
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H13/00—Measuring resonant frequency
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To realize an automatic detection of the resonance frequency with high accuracy, by stopping the rotation of a rotary device incorporating a noncontacting sensor and using the electric signal delivered from the noncontacting sensor when the rotation of the rotary device is at pause. CONSTITUTION:A sensor 20 is attached at a fixed part 15 of an object 3 to be measured to detect without contacting the vibrations of the specific area 19 of a mobile part 1 and the object 3. A driving part 37 is connected to the part 1 of the object 3, and the part 1 is driven to be freely stopped suddenly. A driving signal generating part 35 feeds the driving stop signal to the part 37 to stop suddenly the driving of the part 1 based on the electric signal supplied from the sensor 20 and delivered after the detection of the area 19. When the part 1 is suddenly stopped, a resonance frequency arithmetic part 36 calculates the resonance frequency of the object 3 based on the electric signal given from the sensor 20 corresponding to the answer vibration produced from the object 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9534281A JPS57211022A (en) | 1981-06-22 | 1981-06-22 | Detector of resonance point |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9534281A JPS57211022A (en) | 1981-06-22 | 1981-06-22 | Detector of resonance point |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57211022A true JPS57211022A (en) | 1982-12-24 |
Family
ID=14135012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9534281A Pending JPS57211022A (en) | 1981-06-22 | 1981-06-22 | Detector of resonance point |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57211022A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0418325U (en) * | 1990-06-06 | 1992-02-17 |
-
1981
- 1981-06-22 JP JP9534281A patent/JPS57211022A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0418325U (en) * | 1990-06-06 | 1992-02-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU2163088A (en) | Improvements in or relating to devices for measuring fluid density | |
ES8400822A1 (en) | Device for a contactless out-of-balance measurement. | |
ES445837A1 (en) | Moisture indicating apparatus | |
JPS57211022A (en) | Detector of resonance point | |
FR2406835A1 (en) | Length measuring machine contact sensing probe - has sensing circuit monitoring probe vibrations generated by transducer in contact element | |
ATE21769T1 (en) | LEVEL GAUGE. | |
JPS56138009A (en) | Tire pressure detector | |
JPS522558A (en) | Electric weight conversion device | |
JPS57151829A (en) | External diagnosis of switch device | |
JPS54104883A (en) | Bearing abnormality detecting device | |
JPS5626228A (en) | Monitor device for rotating shaft | |
JPS57103959A (en) | Apparatus for driving body and for detecting position thereof | |
JPS6450909A (en) | Detecting device of abnormality of encoder | |
JPS56162033A (en) | Abnormality monitoring device for bearing load of rotating machine | |
JPS5736594A (en) | Power device for driving induction motor | |
JPS56153959A (en) | Induction machine | |
JPS5572809A (en) | Method and device for detecting abrasion of sliding member | |
JPS5522179A (en) | Contact meter | |
JPS5687859A (en) | Speed alarming device for automobile | |
JPS6416947A (en) | Method and instrument for driving object to be measured in unbalance measurement | |
JPS55104781A (en) | Apparatus for measuring operating time | |
JPS52131301A (en) | Device for judging shock and vibration of wheel | |
JPS5460670A (en) | Positioning system | |
JPS5433079A (en) | High accuracy vibration amplitude detecting method | |
JPS57142800A (en) | Method and device for measuring stopping performance of press slide in press machine |