JPS63183696U - - Google Patents
Info
- Publication number
- JPS63183696U JPS63183696U JP7484187U JP7484187U JPS63183696U JP S63183696 U JPS63183696 U JP S63183696U JP 7484187 U JP7484187 U JP 7484187U JP 7484187 U JP7484187 U JP 7484187U JP S63183696 U JPS63183696 U JP S63183696U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- alarm
- voltage
- sensor
- output
- 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
- 206010021143 Hypoxia Diseases 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
- 229910002076 stabilized zirconia Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Emergency Alarm Devices (AREA)
Description
第１図は本考案において用いる酸欠警報器の回
路図、第２図は同センサーのヒーター電圧低下時
の出力電圧特性図、第３図は同酸素センサーの構
造図、第４図は同センサーの電気的特性図、第５
図は同センサーの温度依存特性図、第６図は従来
の回路図である。
１１……酸素センサ、２５……制御手段、２６
……切換手段、Ａ……ヒーター電圧制御回路、Ｂ
……変換回路、Ｄ……比較回路、Ｅ……警報回路
。
Figure 1 is a circuit diagram of the oxygen deficiency alarm used in the present invention, Figure 2 is an output voltage characteristic diagram of the same sensor when the heater voltage drops, Figure 3 is a structural diagram of the oxygen sensor, and Figure 4 is the same sensor. Electrical characteristic diagram, 5th
The figure is a temperature dependence characteristic diagram of the sensor, and FIG. 6 is a conventional circuit diagram. 11... Oxygen sensor, 25... Control means, 26
...Switching means, A...Heater voltage control circuit, B
...Conversion circuit, D...Comparison circuit, E...Alarm circuit.
Claims (1)
を利用した酸素センサー１１と、前記センサー１
１のヒーターに電圧を印加するヒーター電圧制御
回路Ａと、前記ヒーター電圧を２段に切り換える
切換手段２６と、前記センサー１１に一定の監視
電圧を印加し、前記センサー中を流れる電流を電
圧に変換する変換回路Ｂと、前記変換回路Ｂの出
力を比較する比較回路Ｄと、酸欠警報器が異常な
るとき警報を発する警報回路Ｅと制御手段２５と
を有し、制御手段２５入力としては前記比較回路
Ｄ出力を、出力としては前記切換手段２６と前記
警報回路Ｅを各接続し、前記制御手段２５には一
定周期Ｔ１毎に時間Ｔ１より短時間Ｔ２、切換手
段２６によりヒーター電圧を低下せしめ、時間Ｔ
２経過完了時、前記比較回路Ｄ出力が前記変換回
路Ｂ出力低下を発生していないとき、前記警報回
路Ｅを駆動する機能を具備させたことを特徴とす
る酸欠警報器。 An oxygen sensor 11 that utilizes the pumping action of heated stabilized zirconia, and the sensor 1
a heater voltage control circuit A that applies a voltage to one heater; a switching means 26 that switches the heater voltage in two stages; and a constant monitoring voltage that is applied to the sensor 11 and converts the current flowing through the sensor into a voltage. A comparison circuit D that compares the output of the conversion circuit B, an alarm circuit E that issues an alarm when the oxygen deficiency alarm becomes abnormal, and a control means 25. The output of the comparison circuit D is connected to the switching means 26 and the alarm circuit E as outputs, and the heater voltage is controlled by the switching means 26 to the control means 25 for a short time T 2 from time T 1 every fixed period T 1 . and decrease the time T
2. An oxygen deficiency alarm comprising a function of driving the alarm circuit E when the output of the comparison circuit D does not cause a decrease in the output of the conversion circuit B upon completion of the second elapse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7484187U JPS63183696U (en) | 1987-05-19 | 1987-05-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7484187U JPS63183696U (en) | 1987-05-19 | 1987-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63183696U true JPS63183696U (en) | 1988-11-25 |
Family
ID=30920433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7484187U Pending JPS63183696U (en) | 1987-05-19 | 1987-05-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63183696U (en) |
-
1987
- 1987-05-19 JP JP7484187U patent/JPS63183696U/ja active Pending