JPH025045U - - Google Patents
Info
- Publication number
- JPH025045U JPH025045U JP8353388U JP8353388U JPH025045U JP H025045 U JPH025045 U JP H025045U JP 8353388 U JP8353388 U JP 8353388U JP 8353388 U JP8353388 U JP 8353388U JP H025045 U JPH025045 U JP H025045U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- display circuit
- piezoelectric element
- pressure
- 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 2
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Description
第１図は本考案の圧力表示回路の一実施例の構
成図、第２図は第１図の実施例のマルチバイブレ
ータ１の回路図、第３図は従来の圧力表示回路の
構成図である。
１……マルチバイブレータ、２……周波数カウ
ンタ、３……表示回路、４……圧電素子、５……
Ａ―Ｄ変換器、６……表示回路、１１……圧電素
子、Ｒ，Ｒｏ……抵抗、Ｃ……コンデンサ、ＴＲ
１，ＴＲ２……トランジスタ。
Fig. 1 is a block diagram of an embodiment of the pressure display circuit of the present invention, Fig. 2 is a circuit diagram of the multivibrator 1 of the embodiment shown in Fig. 1, and Fig. 3 is a block diagram of a conventional pressure display circuit. . 1... Multivibrator, 2... Frequency counter, 3... Display circuit, 4... Piezoelectric element, 5...
A-D converter, 6... Display circuit, 11... Piezoelectric element, R, Ro... Resistor, C... Capacitor, TR
1, TR2...Transistor.
Claims (1)
圧電素子に印加する圧力に対応して変化する発振
周波数の出力を発生するマルチバイブレータと、 前記マルチバイブレータの出力を受けてその発
振周波数をカウントする周波数カウンタと、 前記周波数カウンタでカウントした周波数に対
応する圧力を表示する表示回路と を備えて成ることを特徴とする圧力表示回路。[Claims for Utility Model Registration] A multivibrator that includes a piezoelectric element as a circuit element and generates an output with an oscillation frequency that changes in response to the pressure applied to the piezoelectric element; A pressure display circuit comprising: a frequency counter that counts the oscillation frequency; and a display circuit that displays pressure corresponding to the frequency counted by the frequency counter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8353388U JPH025045U (en) | 1988-06-23 | 1988-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8353388U JPH025045U (en) | 1988-06-23 | 1988-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH025045U true JPH025045U (en) | 1990-01-12 |
Family
ID=31308246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8353388U Pending JPH025045U (en) | 1988-06-23 | 1988-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH025045U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58100914U (en) * | 1981-12-28 | 1983-07-09 | 丸井産業株式会社 | Connection spacer for construction |
| JPS58177446U (en) * | 1982-05-20 | 1983-11-28 | 丸井産業株式会社 | Connection spacer for construction |
| JPS6111576U (en) * | 1984-06-26 | 1986-01-23 | 帝国繊維株式会社 | Fire hose packaging |
-
1988
- 1988-06-23 JP JP8353388U patent/JPH025045U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58100914U (en) * | 1981-12-28 | 1983-07-09 | 丸井産業株式会社 | Connection spacer for construction |
| JPS58177446U (en) * | 1982-05-20 | 1983-11-28 | 丸井産業株式会社 | Connection spacer for construction |
| JPS6111576U (en) * | 1984-06-26 | 1986-01-23 | 帝国繊維株式会社 | Fire hose packaging |
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