JPS61137231U - - Google Patents
Info
- Publication number
- JPS61137231U JPS61137231U JP2015685U JP2015685U JPS61137231U JP S61137231 U JPS61137231 U JP S61137231U JP 2015685 U JP2015685 U JP 2015685U JP 2015685 U JP2015685 U JP 2015685U JP S61137231 U JPS61137231 U JP S61137231U
- Authority
- JP
- Japan
- Prior art keywords
- water level
- thermistor
- detection
- resistance value
- detection 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
- 238000001514 detection method Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
第１図は本考案の一実施例に係わる水位検出回
路の構成を示す回路図、第２図は同実施例の動作
を説明するための電圧特性図、第３図は従来の水
位検出回路の構成を示す回路図である。
１……水位検出用サーミスタ、２……直列抵抗
、４……制御回路、６……温度補正用サーミスタ
。
Fig. 1 is a circuit diagram showing the configuration of a water level detection circuit according to an embodiment of the present invention, Fig. 2 is a voltage characteristic diagram for explaining the operation of the embodiment, and Fig. 3 is a diagram of a conventional water level detection circuit. FIG. 3 is a circuit diagram showing the configuration. 1... Thermistor for water level detection, 2... Series resistor, 4... Control circuit, 6... Thermistor for temperature correction.
Claims (1)
出用サーミスタの抵抗値変化に基づいて水位を検
出する水位検出回路において、前記検出用サーミ
スタに温度補正用サーミスタが接続して検出回路
を構成し水位検出対象の水温に応じた前記温度補
正用サーミスタの抵抗値及び前記検出用サーミス
タの抵抗値の両者に基づいて決定される水位検出
信号を出力することを特徴とする水位検出回路。 In a water level detection circuit that detects a water level based on a change in the resistance value of a detection thermistor installed at a position corresponding to a predetermined detection water level, a temperature correction thermistor is connected to the detection thermistor to form a detection circuit. A water level detection circuit outputting a water level detection signal determined based on both the resistance value of the temperature correction thermistor and the resistance value of the detection thermistor according to the water temperature to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015685U JPS61137231U (en) | 1985-02-15 | 1985-02-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015685U JPS61137231U (en) | 1985-02-15 | 1985-02-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61137231U true JPS61137231U (en) | 1986-08-26 |
Family
ID=30510380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015685U Pending JPS61137231U (en) | 1985-02-15 | 1985-02-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61137231U (en) |
-
1985
- 1985-02-15 JP JP2015685U patent/JPS61137231U/ja active Pending
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