JPS62130327A - 水晶式気体圧力計 - Google Patents
水晶式気体圧力計Info
- Publication number
- JPS62130327A JPS62130327A JP27104085A JP27104085A JPS62130327A JP S62130327 A JPS62130327 A JP S62130327A JP 27104085 A JP27104085 A JP 27104085A JP 27104085 A JP27104085 A JP 27104085A JP S62130327 A JPS62130327 A JP S62130327A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- crystal
- phase comparator
- phase
- oscillator
- 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
- 239000013078 crystal Substances 0.000 title claims abstract description 69
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- 230000010355 oscillation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 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 |
|---|---|---|---|
| JP27104085A JPS62130327A (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 |
|---|---|---|---|
| JP27104085A JPS62130327A (ja) | 1985-12-02 | 1985-12-02 | 水晶式気体圧力計 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62130327A true JPS62130327A (ja) | 1987-06-12 |
| JPH049452B2 JPH049452B2 (enrdf_load_stackoverflow) | 1992-02-20 |
Family
ID=17494561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27104085A Granted JPS62130327A (ja) | 1985-12-02 | 1985-12-02 | 水晶式気体圧力計 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62130327A (enrdf_load_stackoverflow) |
-
1985
- 1985-12-02 JP JP27104085A patent/JPS62130327A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH049452B2 (enrdf_load_stackoverflow) | 1992-02-20 |
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