JPS55131736A - Temperature measuring device - Google Patents
Temperature measuring deviceInfo
- Publication number
- JPS55131736A JPS55131736A JP3896679A JP3896679A JPS55131736A JP S55131736 A JPS55131736 A JP S55131736A JP 3896679 A JP3896679 A JP 3896679A JP 3896679 A JP3896679 A JP 3896679A JP S55131736 A JPS55131736 A JP S55131736A
- Authority
- JP
- Japan
- Prior art keywords
- fixed range
- detected temperature
- linear amplifier
- comparator
- reference voltage
- 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
Landscapes
- Air Conditioning Control Device (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
PURPOSE: To obtain an inexpensive device and to reduce the affection of voltage change remarkably by providing a linear amplifier, reference voltage setter and comparator and by producing a plural-stage digital output when the detected temperature is within a fixed range.
CONSTITUTION: The linear amplifier 11, reference voltage setter 3 and comparator 42 are provided, a plural-stage digital output is produced in the comparator 42 when the detected temperature is within a fixed range. In this way, a detected temperature within the fixed range can precisely be measured. A detected temperature that is outside of the fixed range is roughly measured (for example, two values between which the fixed range exists, or the upper and lower limit values of the fixed range) to set the linear amplifier easily, resulting in the use of a cheap means. Also the linear amplifier 11 and the reference voltage setter 3 can be connected to a common DC supply to eliminate the affection to the measured value even though the line voltage is changed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54038966A JPS5945926B2 (en) | 1979-03-30 | 1979-03-30 | temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54038966A JPS5945926B2 (en) | 1979-03-30 | 1979-03-30 | temperature measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55131736A true JPS55131736A (en) | 1980-10-13 |
| JPS5945926B2 JPS5945926B2 (en) | 1984-11-09 |
Family
ID=12539894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54038966A Expired JPS5945926B2 (en) | 1979-03-30 | 1979-03-30 | temperature measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5945926B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5858687U (en) * | 1981-10-15 | 1983-04-20 | ニツタン株式会社 | fire detector |
| JPH02210232A (en) * | 1989-02-10 | 1990-08-21 | Matsushita Electric Ind Co Ltd | Temperature detecting device for combustion heater or the like |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0512280Y2 (en) * | 1987-07-27 | 1993-03-29 |
-
1979
- 1979-03-30 JP JP54038966A patent/JPS5945926B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5858687U (en) * | 1981-10-15 | 1983-04-20 | ニツタン株式会社 | fire detector |
| JPS6022476Y2 (en) * | 1981-10-15 | 1985-07-03 | ニツタン株式会社 | fire detector |
| JPH02210232A (en) * | 1989-02-10 | 1990-08-21 | Matsushita Electric Ind Co Ltd | Temperature detecting device for combustion heater or the like |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5945926B2 (en) | 1984-11-09 |
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