JPS63152543U - - Google Patents
Info
- Publication number
- JPS63152543U JPS63152543U JP4260087U JP4260087U JPS63152543U JP S63152543 U JPS63152543 U JP S63152543U JP 4260087 U JP4260087 U JP 4260087U JP 4260087 U JP4260087 U JP 4260087U JP S63152543 U JPS63152543 U JP S63152543U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- temperature sensing
- capacitor
- voltage
- measured
- 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 4
- 239000003990 capacitor Substances 0.000 claims 4
- 238000007599 discharging Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
第１図は温度検出回路図、第２図は制御系全体
ブロツク図、第３図は感温素子の特性図、第４図
は電圧比較回路の入力波形図、第５図は電圧比較
回路の出力波形図である。
１……機能切換回路、２……電圧比較回路、３
……被測定物、４……温度検出回路、５……制御
回路、Ｒｔｈ……感温素子。
Fig. 1 is a temperature detection circuit diagram, Fig. 2 is an overall block diagram of the control system, Fig. 3 is a characteristic diagram of the temperature sensing element, Fig. 4 is an input waveform diagram of the voltage comparator circuit, and Fig. 5 is a diagram of the voltage comparator circuit. It is an output waveform diagram. 1...Function switching circuit, 2...Voltage comparison circuit, 3
...Object to be measured, 4...Temperature detection circuit, 5...Control circuit, Rth...Temperature sensing element.
Claims (1)
温素子と、前記感温素子を組み込んである温度検
出回路において、前記温度検出回路には、前記感
温素子に直列に接続されているコンデンサと、前
記被測定物の温度を検出するか否かを決定し、か
つ、温度検出時のコンデンサの状態を充電あるい
は放電のいずれかに決定する機能を有している機
能切換手段と、前記コンデンサの電圧を、ある任
意の基準電圧と比較するための電圧比較回路とを
付加せしめ、前記コンデンサの充放電時間に対応
した前記電圧比較回路の出力信号の長さを被測定
物の温度と対応せしめたことを特徴とした温度検
出回路。 In a temperature sensing circuit incorporating a temperature sensing element for detecting the temperature of an arbitrary object to be measured and the temperature sensing element, the temperature sensing circuit includes a capacitor connected in series with the temperature sensing element. and a function switching means having a function of determining whether or not to detect the temperature of the object to be measured, and determining the state of the capacitor to be either charging or discharging at the time of temperature detection, and the capacitor. A voltage comparison circuit is added for comparing the voltage of the voltage with an arbitrary reference voltage, and the length of the output signal of the voltage comparison circuit corresponding to the charging/discharging time of the capacitor is made to correspond to the temperature of the object to be measured. A temperature detection circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4260087U JPS63152543U (en) | 1987-03-25 | 1987-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4260087U JPS63152543U (en) | 1987-03-25 | 1987-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63152543U true JPS63152543U (en) | 1988-10-06 |
Family
ID=30858665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4260087U Pending JPS63152543U (en) | 1987-03-25 | 1987-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63152543U (en) |
-
1987
- 1987-03-25 JP JP4260087U patent/JPS63152543U/ja active Pending