JPS5679226A - Vibration type pressure transducer - Google Patents
Vibration type pressure transducerInfo
- Publication number
- JPS5679226A JPS5679226A JP15582079A JP15582079A JPS5679226A JP S5679226 A JPS5679226 A JP S5679226A JP 15582079 A JP15582079 A JP 15582079A JP 15582079 A JP15582079 A JP 15582079A JP S5679226 A JPS5679226 A JP S5679226A
- Authority
- JP
- Japan
- Prior art keywords
- section
- vibrators
- gate
- counter
- pressure transducer
- 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
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
- G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
- G01L9/0022—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a piezoelectric element
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
PURPOSE:To offset the influences due to factors other than pressure by differentially using elastic vibrators of the same quality. CONSTITUTION:A pressure transducer of vibration type comprises a sensor section S, an exciting section E, a counter section C, a logical arithmetic section L and an analogue output section O, In the sensor section S, for example, there are provided two vibrators 1, 2 having the same characteristics and so arranged that a pair of parallel beams are connected with each other at their one side ends and respective grip portions thereof at the connected side are fixed on a base 3, while another respective grip portions at the opposite side receive individual pressures A and B. When the pressures A, B are applied on the vibrators 2, 1, respectively, specific frequencies of the vibrators are varied. Outputs from counter circuits 6, 7 are applied to gates 8, 9, so that the gate 8 produces a pulse width signal corresponding to the difference in frequencies and the gate 9 produces a signal to synchronously reset the counter section C. The pulse width signal from the gate 8 is output through a filter 10 and the analogue output section O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15582079A JPS5679226A (en) | 1979-11-30 | 1979-11-30 | Vibration type pressure transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15582079A JPS5679226A (en) | 1979-11-30 | 1979-11-30 | Vibration type pressure transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5679226A true JPS5679226A (en) | 1981-06-29 |
Family
ID=15614191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15582079A Pending JPS5679226A (en) | 1979-11-30 | 1979-11-30 | Vibration type pressure transducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5679226A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2532047A1 (en) * | 1982-08-19 | 1984-02-24 | Asulab Sa | MEASURING SENSOR PROVIDED WITH A PIEZOELECTRIC RESONATOR COMPENSATED IN TEMPERATURE |
-
1979
- 1979-11-30 JP JP15582079A patent/JPS5679226A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2532047A1 (en) * | 1982-08-19 | 1984-02-24 | Asulab Sa | MEASURING SENSOR PROVIDED WITH A PIEZOELECTRIC RESONATOR COMPENSATED IN TEMPERATURE |
| EP0101669A2 (en) * | 1982-08-19 | 1984-02-29 | Asulab S.A. | Measuring device using a temperature-compensated piezoelectric resonator |
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