JPH03123242U - - Google Patents
Info
- Publication number
- JPH03123242U JPH03123242U JP3327390U JP3327390U JPH03123242U JP H03123242 U JPH03123242 U JP H03123242U JP 3327390 U JP3327390 U JP 3327390U JP 3327390 U JP3327390 U JP 3327390U JP H03123242 U JPH03123242 U JP H03123242U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- vibrator
- pressure measurement
- oscillator
- oscillation circuit
- 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
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000009530 blood pressure measurement Methods 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図は本考案の実施例を示すブロツク図、第
２図は従来の圧力測定装置のブロツク図である。
１……水晶振動子、２……水晶振動子、３……
発振回路、４……増幅回路、５……電流電圧変換
回路、６……整流回路、７……表示回路。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional pressure measuring device. 1...Crystal oscillator, 2...Crystal oscillator, 3...
Oscillation circuit, 4... Amplification circuit, 5... Current-voltage conversion circuit, 6... Rectifier circuit, 7... Display circuit.
Claims (1)
利用した圧力測定装置において、圧力検出部が少
なくとも、発振回路を有し圧力測定室に設けられ
た第１の振動子と、前記第１の振動子が接続され
た発振回路の出力信号により他励発振する、前記
圧力測定室内に設けられた第２の振動子からなる
ことを特徴とする圧力測定装置。 In a pressure measuring device that utilizes the fact that the resonance characteristic of a vibrator depends on gas pressure, the pressure detection section includes at least a first vibrator having an oscillation circuit and provided in a pressure measurement chamber, and the first vibrator. A pressure measurement device comprising a second oscillator provided within the pressure measurement chamber, which performs separately excited oscillation by an output signal of an oscillation circuit to which a second oscillator is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327390U JPH03123242U (en) | 1990-03-29 | 1990-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3327390U JPH03123242U (en) | 1990-03-29 | 1990-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03123242U true JPH03123242U (en) | 1991-12-16 |
Family
ID=31536810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3327390U Pending JPH03123242U (en) | 1990-03-29 | 1990-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03123242U (en) |
-
1990
- 1990-03-29 JP JP3327390U patent/JPH03123242U/ja active Pending
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