JPS56154628A - Device for detecting and processing vibration and loose part - Google Patents
Device for detecting and processing vibration and loose partInfo
- Publication number
- JPS56154628A JPS56154628A JP5782780A JP5782780A JPS56154628A JP S56154628 A JPS56154628 A JP S56154628A JP 5782780 A JP5782780 A JP 5782780A JP 5782780 A JP5782780 A JP 5782780A JP S56154628 A JPS56154628 A JP S56154628A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- wave
- time constant
- period
- rising
- 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
- G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
- G01H3/10—Amplitude; Power
- G01H3/12—Amplitude; Power by electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
PURPOSE:To enable the total capacity of wave memory to be decreased, by using an envelope detecting means which follows the rising period of a detected signal and has a smooth time constant at falling period and obtaining the wave-form whose peak position and peak value are the same as those of the detected signal. CONSTITUTION:Instead of a detector wherein an integrater is used, is employed the envelope detecting means which has a small time constant at the rising period of the signal and has the large time constant at the falling period. For example, a diode 51 is connected in series, a capacitor 52 and a resistor 53 are connected in parallel, and a four terminal circuit is constituted. Since the capacitor 52 is rapidly charged through the diode 51 at the rising period of the signal, the output wave-form follows the rising of the signal. At the falling period, the amplitude decreases in response to the time constant determined by the CR. Therefore, the envelope wave-form whose peak position and peak value are not different from those of the detected impact signal is obtained. Thus, sampling in the wave memory can be delayed, and the capacity can be decreased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5782780A JPS56154628A (en) | 1980-05-02 | 1980-05-02 | Device for detecting and processing vibration and loose part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5782780A JPS56154628A (en) | 1980-05-02 | 1980-05-02 | Device for detecting and processing vibration and loose part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56154628A true JPS56154628A (en) | 1981-11-30 |
Family
ID=13066751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5782780A Pending JPS56154628A (en) | 1980-05-02 | 1980-05-02 | Device for detecting and processing vibration and loose part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56154628A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0187224U (en) * | 1987-11-30 | 1989-06-08 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538498A (en) * | 1976-07-09 | 1978-01-25 | Hitachi Ltd | Abnormality detector of lprm |
-
1980
- 1980-05-02 JP JP5782780A patent/JPS56154628A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538498A (en) * | 1976-07-09 | 1978-01-25 | Hitachi Ltd | Abnormality detector of lprm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0187224U (en) * | 1987-11-30 | 1989-06-08 | ||
| JPH0447632Y2 (en) * | 1987-11-30 | 1992-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5693079A (en) | Measurement of time duration | |
| JPS6445050A (en) | Mass spectrometer for secondary ion | |
| JPS56154628A (en) | Device for detecting and processing vibration and loose part | |
| SE8603175L (en) | TOP METER DEVICE DETECTOR CIRCUIT | |
| GB1240385A (en) | Improvements in or relating to waveform measuring | |
| JPS5633584A (en) | Measurement of time delay | |
| JPS5722568A (en) | Fast peak detection circuit | |
| JPS57119272A (en) | Signal detection circuit | |
| SU553543A1 (en) | Device for measuring the amplitude of single pulses | |
| JPS531570A (en) | Measuring system | |
| SU450108A1 (en) | Analog wideband frequency meter | |
| JPS57149911A (en) | Electrostatic capacity type sensor | |
| JPS55149878A (en) | Level detector | |
| JPS55113964A (en) | Electric field intensity indicator | |
| JPS5440016A (en) | Fail soft receiving high frequency amplifier | |
| JPS55140167A (en) | Fault detector | |
| JPS5363083A (en) | Detecting circuit for minute changing quantity | |
| JPS56126722A (en) | Measuring device | |
| JPS5684030A (en) | Peak detecting circuit | |
| JPS552915A (en) | Device to detect number of revolution | |
| JPS573053A (en) | Measuring circuit for characteristic of decoder | |
| JPS5587952A (en) | Particle counter | |
| JPS52143077A (en) | Polar value arrival detector | |
| JPS5764128A (en) | Loose parts monitor | |
| JPS5487549A (en) | Rotating angle detector |