JPS5589726A - Temperature measuring unit - Google Patents
Temperature measuring unitInfo
- Publication number
- JPS5589726A JPS5589726A JP274780A JP274780A JPS5589726A JP S5589726 A JPS5589726 A JP S5589726A JP 274780 A JP274780 A JP 274780A JP 274780 A JP274780 A JP 274780A JP S5589726 A JPS5589726 A JP S5589726A
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- pulse
- resistance value
- temperature
- inputted
- 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.)
- Granted
Links
- 238000009529 body temperature measurement Methods 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 2
- 230000007423 decrease Effects 0.000 abstract 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
PURPOSE:To enable to perform accurate temperature measurement, by avoiding the pulse width from being affected from external conditions, in the temperature measurement using the circuit in which the resistance value of element converting the temperature into resistance value is converted into pulse width. CONSTITUTION:When the balance of the bridge circuit is unbalanced and the voltage Vi is outputted, it is DC-amplified 2 and inputted to the pulse width modulator 3 to change the pulse width ts of pulse train from the pulse generator 4. The pulse train receiving the pulse width modulation is inputted to the transistor 5 to control ON.OFF operation of the transistor 5 and the effective resistance value Rt between a-b. When the input voltage of the modulator 3 is decreased (increased), the pulse width ts increases (decreases), and the effective resistance value Rt is decreased (increased). Thus, the bridge circuit keeps balancing and variable output is obtained so that the pulse width ts can be determined with the value of the temperature conversion resistance R1. By counting the pulse output through the gate control with the pulse of pulse width ts, the temperature sensed with the conversion resistor can be grasped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55002747A JPS5821214B2 (en) | 1980-01-14 | 1980-01-14 | temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55002747A JPS5821214B2 (en) | 1980-01-14 | 1980-01-14 | temperature measuring device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3371375A Division JPS51108875A (en) | 1975-03-20 | 1975-03-20 | ONDOSOKUTEIKI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5589726A true JPS5589726A (en) | 1980-07-07 |
| JPS5821214B2 JPS5821214B2 (en) | 1983-04-27 |
Family
ID=11537938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55002747A Expired JPS5821214B2 (en) | 1980-01-14 | 1980-01-14 | temperature measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5821214B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07137989A (en) * | 1993-11-17 | 1995-05-30 | Jgc Corp | Material hoisting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51108875A (en) * | 1975-03-20 | 1976-09-27 | Meisei Electric Co Ltd | ONDOSOKUTEIKI |
-
1980
- 1980-01-14 JP JP55002747A patent/JPS5821214B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51108875A (en) * | 1975-03-20 | 1976-09-27 | Meisei Electric Co Ltd | ONDOSOKUTEIKI |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07137989A (en) * | 1993-11-17 | 1995-05-30 | Jgc Corp | Material hoisting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5821214B2 (en) | 1983-04-27 |
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