JPH049451B2 - - Google Patents
Info
- Publication number
- JPH049451B2 JPH049451B2 JP27103985A JP27103985A JPH049451B2 JP H049451 B2 JPH049451 B2 JP H049451B2 JP 27103985 A JP27103985 A JP 27103985A JP 27103985 A JP27103985 A JP 27103985A JP H049451 B2 JPH049451 B2 JP H049451B2
- Authority
- JP
- Japan
- Prior art keywords
- oscillator
- crystal
- variable frequency
- control voltage
- gas pressure
- 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.)
- Expired
Links
- 239000013078 crystal Substances 0.000 claims description 73
- 230000010355 oscillation Effects 0.000 claims description 20
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 16
- 230000008859 change Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27103985A JPS62130326A (ja) | 1985-12-02 | 1985-12-02 | 水晶式気体圧力計 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27103985A JPS62130326A (ja) | 1985-12-02 | 1985-12-02 | 水晶式気体圧力計 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62130326A JPS62130326A (ja) | 1987-06-12 |
| JPH049451B2 true JPH049451B2 (fr) | 1992-02-20 |
Family
ID=17494548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27103985A Granted JPS62130326A (ja) | 1985-12-02 | 1985-12-02 | 水晶式気体圧力計 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62130326A (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104160255A (zh) * | 2012-03-07 | 2014-11-19 | 松下电器产业株式会社 | 载荷传感器 |
-
1985
- 1985-12-02 JP JP27103985A patent/JPS62130326A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62130326A (ja) | 1987-06-12 |
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