JPH0342534U - - Google Patents
Info
- Publication number
- JPH0342534U JPH0342534U JP10248689U JP10248689U JPH0342534U JP H0342534 U JPH0342534 U JP H0342534U JP 10248689 U JP10248689 U JP 10248689U JP 10248689 U JP10248689 U JP 10248689U JP H0342534 U JPH0342534 U JP H0342534U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- reference resistor
- constant current
- voltage drop
- resistance
- 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
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- BEOLWJVNPROZQJ-AQSKNYQYSA-N rtd-1 Chemical compound C([C@@H]1NC(=O)CNC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H]([C@@H](C)O)NC(=O)[C@@H]2CSSC[C@H](NC1=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@H]1CSSC[C@H](NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@@H]3CSSC[C@@H](C(N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCNC(N)=N)C(=O)NCC(=O)N[C@H](C(=O)N3)C(C)C)=O)NC(=O)[C@H](CC(C)C)NC1=O)C(=O)N[C@H](C(N2)=O)[C@@H](C)CC)C1=CC=CC=C1 BEOLWJVNPROZQJ-AQSKNYQYSA-N 0.000 description 1
Description
第１図は本考案の構成原理を示すブロツク図、
第２図は本考案の一実施例を示す構成ブロツク図
、第３図は測温抵抗体による温度測定の従来回路
方式を示すブロツク図である。
１……定電流源、２……電圧計、５……演算制
御装置、１０……温度計、ＲＯ……基準抵抗器、
ＲＴＤ１〜ＲＴＤｎ……測温抵抗体、ＲＬ，ＲＬ
１〜ＲＬｎ，ＲＬｔ……リレー。
Figure 1 is a block diagram showing the principle of construction of the present invention.
FIG. 2 is a block diagram showing an embodiment of the present invention, and FIG. 3 is a block diagram showing a conventional circuit system for temperature measurement using a resistance temperature detector. DESCRIPTION OF SYMBOLS 1... Constant current source, 2... Voltmeter, 5... Arithmetic control unit, 10... Thermometer, RO... Reference resistor,
RTD1 to RTDn...Resistance temperature sensor, RL, RL
1~RLn, RLt...Relay.
Claims (1)
抗値の経時変化も保障されている基準抵抗器と、
該基準抵抗器と直列に接続された少なくとも一個
の測温抵抗体と、これら基準抵抗器と測温抵抗体
の直列回路に直流電流を流すための短期安定度が
保障された定電流源と、前記基準抵抗器の周囲温
度を測定する温度計とを具備し、測定温度におけ
る前記抵抗値の補正された基準抵抗器を定電流が
流れることによる電圧降下と、測温抵抗体を定電
流が流れることによる電圧降下との差分値から温
度を測定するように構成したことを特徴とする測
温抵抗体を用いた温度測定装置。 A reference resistor whose temperature coefficient is accurately known and whose resistance value changes over time is guaranteed.
at least one resistance temperature detector connected in series with the reference resistor; a constant current source with guaranteed short-term stability for flowing a direct current through the series circuit of the reference resistor and the resistance temperature detector; and a thermometer that measures the ambient temperature of the reference resistor, and a voltage drop due to a constant current flowing through the reference resistor whose resistance value is corrected at the measurement temperature, and a constant current flowing through the temperature measuring resistor. What is claimed is: 1. A temperature measuring device using a resistance temperature detector, characterized in that the temperature is measured from the difference value between the voltage drop caused by the voltage drop caused by the temperature drop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10248689U JPH0342534U (en) | 1989-08-31 | 1989-08-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10248689U JPH0342534U (en) | 1989-08-31 | 1989-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0342534U true JPH0342534U (en) | 1991-04-22 |
Family
ID=31651381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10248689U Pending JPH0342534U (en) | 1989-08-31 | 1989-08-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0342534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010243354A (en) * | 2009-04-07 | 2010-10-28 | Canon Inc | Temperature measuring device, temperature measuring method, exposure device and device production method |
-
1989
- 1989-08-31 JP JP10248689U patent/JPH0342534U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010243354A (en) * | 2009-04-07 | 2010-10-28 | Canon Inc | Temperature measuring device, temperature measuring method, exposure device and device production method |
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