JPS5468658A - Conversion amplifier - Google Patents
Conversion amplifierInfo
- Publication number
- JPS5468658A JPS5468658A JP13530177A JP13530177A JPS5468658A JP S5468658 A JPS5468658 A JP S5468658A JP 13530177 A JP13530177 A JP 13530177A JP 13530177 A JP13530177 A JP 13530177A JP S5468658 A JPS5468658 A JP S5468658A
- Authority
- JP
- Japan
- Prior art keywords
- active filter
- charge
- amplifier
- charge amplifier
- operational amplifier
- 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.)
- Granted
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE: To convert the charge quantity changing according to the quantity to be measured such as velocity of flow, vibrations, etc. to voltage signals by using an active filter which combines an operational amplifier and impedance elements.
CONSTITUTION: A charge amplifier 2 is constituted by an operational amplifier OP1 and the capacitor C1 and resistance R1 connected to the feedback circuit of OP1, and the foregoing piezoelectric sensor I is connected between its input termimals. The cutoff frequency fa of an active filter 3 is selected near the minimum value of the measuring frequencies and its gain is selected sufficiently large. Hence, the characteristics of the entire part of the circuit consisting of the piezoelectric element I, charge amplifier 2 and active filter 3 becomes as shown by the solid line and the low frequency range characteristics of the charge amplifier 2 are compensated by the active filter 3, whereby the desired gain is obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13530177A JPS5468658A (en) | 1977-11-11 | 1977-11-11 | Conversion amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13530177A JPS5468658A (en) | 1977-11-11 | 1977-11-11 | Conversion amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5468658A true JPS5468658A (en) | 1979-06-01 |
| JPS5743845B2 JPS5743845B2 (en) | 1982-09-17 |
Family
ID=15148497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13530177A Granted JPS5468658A (en) | 1977-11-11 | 1977-11-11 | Conversion amplifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5468658A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173023U (en) * | 1984-04-26 | 1985-11-16 | 株式会社 長野計器製作所 | vortex flow meter |
| ES2245614A1 (en) * | 2005-05-25 | 2006-01-01 | Universitat Autonoma De Barcelona | Read system for monolithic semiconductor resonant mechanical transducer element, has polarizer which is connected between input and output nodes of amplifier in order to polarize input node by connecting same to output node |
| WO2022172514A1 (en) * | 2021-02-10 | 2022-08-18 | 株式会社村田製作所 | Sensor signal generation device, sensor device, and communication device |
-
1977
- 1977-11-11 JP JP13530177A patent/JPS5468658A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173023U (en) * | 1984-04-26 | 1985-11-16 | 株式会社 長野計器製作所 | vortex flow meter |
| ES2245614A1 (en) * | 2005-05-25 | 2006-01-01 | Universitat Autonoma De Barcelona | Read system for monolithic semiconductor resonant mechanical transducer element, has polarizer which is connected between input and output nodes of amplifier in order to polarize input node by connecting same to output node |
| WO2006125841A1 (en) * | 2005-05-25 | 2006-11-30 | Universitat Autonoma De Barcelona | Read system for a mechanical transducer element |
| WO2022172514A1 (en) * | 2021-02-10 | 2022-08-18 | 株式会社村田製作所 | Sensor signal generation device, sensor device, and communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5743845B2 (en) | 1982-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS57211812A (en) | Wide band amplifier | |
| JPS54160150A (en) | Frequency selecting circuit | |
| JPS5468658A (en) | Conversion amplifier | |
| JPS5575316A (en) | Control circuit for frequency characteristic | |
| JPS5564412A (en) | Frequency characteristic regulator | |
| JPS5486362A (en) | Rotating angle detector | |
| JPS5542411A (en) | Wide-band/low-offset drift operational amplifier | |
| JPS5654367A (en) | Impedance/voltage converting circuit | |
| JPS5776918A (en) | A/d converter | |
| JPS5594138A (en) | Vibration type densimeter | |
| JPS5685944A (en) | Wide band receiving circuit for optical communication | |
| JPS5769911A (en) | Amplifier | |
| JPH0575360B2 (en) | ||
| JPS5472088A (en) | Trigger signal generating circuit | |
| SU550654A1 (en) | Functional Generator | |
| JPS5315858A (en) | Spectrum analyzer | |
| JPS5338380A (en) | Peak detecting circuit | |
| SU1095352A1 (en) | Two-step amplifier | |
| SU585629A1 (en) | Device for shaping television measuring wobble frequency signal | |
| JPS5657960A (en) | Frequency-current converting circuit | |
| JPS5533371A (en) | Aft circuit | |
| JPS54100236A (en) | Integrator featuring drift compensation characteristics | |
| JPS55125709A (en) | Tone control circuit | |
| JPS5529207A (en) | Ripple-eliminating circuit | |
| JPS5742209A (en) | Negative feedback amplifier |