JPS5984437U - alarm device - Google Patents
alarm deviceInfo
- Publication number
- JPS5984437U JPS5984437U JP15105383U JP15105383U JPS5984437U JP S5984437 U JPS5984437 U JP S5984437U JP 15105383 U JP15105383 U JP 15105383U JP 15105383 U JP15105383 U JP 15105383U JP S5984437 U JPS5984437 U JP S5984437U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric element
- detected part
- signal
- detector
- operates
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Burglar Alarm Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例に使用する検出器の構成を示
す中央縦断面図、第２図は、同実施例の電気回路図であ
る。
１・・・検出器、２・・・被検知部、３・・・圧電素子
、４・・・端子、５・・・ケース、６・・・振動板、７
・・・差動増幅器、８・・−・警報器“、９・・・ダイ
オード。FIG. 1 is a central longitudinal sectional view showing the configuration of a detector used in an embodiment of the present invention, and FIG. 2 is an electrical circuit diagram of the same embodiment. DESCRIPTION OF SYMBOLS 1...Detector, 2...Detected part, 3...Piezoelectric element, 4...Terminal, 5...Case, 6...Vibration plate, 7
... Differential amplifier, 8 ... Alarm device, 9 ... Diode.
Claims (1)
し、この圧電素子および前部被検出部に当接するように
屈曲された振動板の一端を前記ケース内に取付け、前記
被検出部の振動を検出して電気的な出力信号を発生する
検出器と、この検出器からの出力信号を入力とする整合
回路と、この整合回路の出力レベルが設定値以上にな？
たとき作動する差動増幅器と、この差動増幅器の作動信
□ 号を受けて動作し警報器を作動させるとともに、こ
の作動状態を自己保持するスイッチング回路と
□よりなる警報装置。One end of a piezoelectric element is supported in a case fixed to the detected part, one end of a diaphragm bent so as to come into contact with the piezoelectric element and the front detected part is installed in the case, and the piezoelectric element is fixed to the detected part. A detector that detects the vibration of the sensor and generates an electrical output signal, and a matching circuit that receives the output signal from this detector as input, and when the output level of this matching circuit exceeds a set value?
□ A differential amplifier that operates when the signal is activated, and a switching circuit that operates upon receiving the activation signal of this differential amplifier to activate the alarm and self-maintain this activation state.
□Alarm device consisting of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15105383U JPS5984437U (en) | 1983-09-29 | 1983-09-29 | alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15105383U JPS5984437U (en) | 1983-09-29 | 1983-09-29 | alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5984437U true JPS5984437U (en) | 1984-06-07 |
Family
ID=30334843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15105383U Pending JPS5984437U (en) | 1983-09-29 | 1983-09-29 | alarm device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5984437U (en) |
-
1983
- 1983-09-29 JP JP15105383U patent/JPS5984437U/en active Pending
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