JPH0351337U - - Google Patents
Info
- Publication number
- JPH0351337U JPH0351337U JP11322689U JP11322689U JPH0351337U JP H0351337 U JPH0351337 U JP H0351337U JP 11322689 U JP11322689 U JP 11322689U JP 11322689 U JP11322689 U JP 11322689U JP H0351337 U JPH0351337 U JP H0351337U
- Authority
- JP
- Japan
- Prior art keywords
- input
- terminals
- converter
- measurement
- input terminal
- 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 description 3
- 238000009529 body temperature measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図は入力端子の接続関係の説明図、第３図及び第
４図は従来の装置のブロツク図である。
１〜３……入力端子、７……測定用電流源、８
……基準抵抗、９……マルチプレクサ、１０……
プログラマブルゲインプリアンプ、１１……Ａ／
Ｄ変換器、１２……マイクロプロセツサ。
Fig. 1 is a block diagram of an embodiment of the present invention;
The figure is an explanatory diagram of the connection relationship of input terminals, and FIGS. 3 and 4 are block diagrams of the conventional device. 1 to 3...Input terminal, 7...Measurement current source, 8
...Reference resistance, 9...Multiplexer, 10...
Programmable gain preamplifier, 11...A/
D converter, 12...microprocessor.
Claims (1)
１の入力端子と、第２の入力端子と、接地される
第３の入力端子と、これら基準抵抗の測定用電流
源との接続点及び第１乃至第３の各入力端子を選
択的にプログラマブルゲインプリアンプに接続す
るマルチプレクサと、前記プログラマブルゲイン
プリアンプの出力信号をデイジタル信号に変換す
るＡ／Ｄ変換器と、これら各部を制御するととも
に前記Ａ／Ｄ変換器から入力されるデイジタル信
号に対して演算処理を行う演算制御部を具備し、 ３線式の測温抵抗体は端子Ａ，ｂ，Ｂが前記第
１乃至第３の入力端子に接続され、熱電対は前記
第２、第３の入力端子に接続されることを特徴と
する温度測定入力回路。[Claims for Utility Model Registration] A first input terminal to which a current source for measurement is connected via a reference resistor, a second input terminal, a third input terminal to be grounded, and measurement of these reference resistors. a multiplexer that selectively connects a connection point with a current source and each of the first to third input terminals to a programmable gain preamplifier; and an A/D converter that converts an output signal of the programmable gain preamplifier into a digital signal; It is equipped with an arithmetic control section that controls each of these sections and performs arithmetic processing on digital signals input from the A/D converter, and the three-wire resistance temperature detector has terminals A, b, and B connected to the terminals A/D converter. A temperature measurement input circuit characterized in that the thermocouple is connected to the first to third input terminals, and the thermocouple is connected to the second and third input terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11322689U JPH0351337U (en) | 1989-09-27 | 1989-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11322689U JPH0351337U (en) | 1989-09-27 | 1989-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0351337U true JPH0351337U (en) | 1991-05-20 |
Family
ID=31661645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11322689U Pending JPH0351337U (en) | 1989-09-27 | 1989-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006262711A (en) * | 2005-03-22 | 2006-10-05 | Shozo Iwai | Planting water supplier and method for supplying planting water |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59212997A (en) * | 1983-05-18 | 1984-12-01 | 株式会社チノー | Multipoint input switch |
| JPS6361917A (en) * | 1986-09-03 | 1988-03-18 | Yokogawa Electric Corp | Multipoint measuring instrument |
| JPS63273026A (en) * | 1987-05-01 | 1988-11-10 | Yamatake Honeywell Co Ltd | Input circuit of temperature measuring instrument |
-
1989
- 1989-09-27 JP JP11322689U patent/JPH0351337U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59212997A (en) * | 1983-05-18 | 1984-12-01 | 株式会社チノー | Multipoint input switch |
| JPS6361917A (en) * | 1986-09-03 | 1988-03-18 | Yokogawa Electric Corp | Multipoint measuring instrument |
| JPS63273026A (en) * | 1987-05-01 | 1988-11-10 | Yamatake Honeywell Co Ltd | Input circuit of temperature measuring instrument |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006262711A (en) * | 2005-03-22 | 2006-10-05 | Shozo Iwai | Planting water supplier and method for supplying planting water |
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