JPH0250617U - - Google Patents
Info
- Publication number
- JPH0250617U JPH0250617U JP12896388U JP12896388U JPH0250617U JP H0250617 U JPH0250617 U JP H0250617U JP 12896388 U JP12896388 U JP 12896388U JP 12896388 U JP12896388 U JP 12896388U JP H0250617 U JPH0250617 U JP H0250617U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier circuit
- value
- digital signal
- gain
- measurement
- 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
- 238000005259 measurement Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Description
図は本考案に係るデータ収録装置の一実施例の
接続図である。
１…入力端子、２…スキヤナ、３…切換スイツ
チ、４…ゲイン可変の増幅器、６…アナログ・デ
イジタル変換器、７…マイクロ・プロセツサ。
The figure is a connection diagram of an embodiment of the data recording device according to the present invention. 1... Input terminal, 2... Scanner, 3... Changeover switch, 4... Variable gain amplifier, 6... Analog/digital converter, 7... Micro processor.
Claims (1)
介してデイジタル信号に変換したのちマイクロ・
プロセツサに取込んで測定するようにした多点デ
ータ収録装置において、測定に先立つて前記増幅
回路のゲインを最高値Ａｎに設定すると共にこの
増幅回路の入力端子を共通電位点に接続してその
時の前記デイジタル信号の値Ｘを求めたのち、こ
の値Ｘを基にして入力チヤネル毎に前記マイクロ
・プロセツサで以下の補正演算を行うことにより
オフセツト誤差を除去するオート・ゼロ手段を有
する多点データ収録装置。 記 デイジタル信号の値−（Ａ／Ａｎ）・Ｘ 但し、Ａ；測定時の前記増幅回路のゲイン。[Claims for Utility Model Registration] Multi-channel input is converted into a digital signal via a variable gain amplifier circuit, and then micro-
In a multi-point data recording device that performs measurements by inputting data into a processor, the gain of the amplifier circuit is set to the highest value An, and the input terminal of this amplifier circuit is connected to a common potential point prior to measurement. Multi-point data recording having auto-zero means for removing offset errors by calculating the value X of the digital signal and then performing the following correction calculations in the microprocessor for each input channel based on this value X. Device. Note: Value of digital signal - (A/An)・X However, A: gain of the amplifier circuit at the time of measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12896388U JPH0619048Y2 (en) | 1988-09-30 | 1988-09-30 | Data recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12896388U JPH0619048Y2 (en) | 1988-09-30 | 1988-09-30 | Data recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0250617U true JPH0250617U (en) | 1990-04-09 |
| JPH0619048Y2 JPH0619048Y2 (en) | 1994-05-18 |
Family
ID=31382791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12896388U Expired - Lifetime JPH0619048Y2 (en) | 1988-09-30 | 1988-09-30 | Data recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0619048Y2 (en) |
-
1988
- 1988-09-30 JP JP12896388U patent/JPH0619048Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619048Y2 (en) | 1994-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0250617U (en) | ||
| JPH0421977U (en) | ||
| JPS6343349U (en) | ||
| JPH01146176U (en) | ||
| JPH0286233U (en) | ||
| JPS63530U (en) | ||
| JPS622090U (en) | ||
| JPH03110663U (en) | ||
| JPH0410500U (en) | ||
| JPS6392438U (en) | ||
| JPS6195129U (en) | ||
| JPH03115427U (en) | ||
| JPS58155037U (en) | process control equipment | |
| JPS618345U (en) | analog input device | |
| JPS6381426U (en) | ||
| JPS63124605U (en) | ||
| JPH0316740U (en) | ||
| JPH01154441U (en) | ||
| JPH0163232U (en) | ||
| JPS58122102U (en) | process control equipment | |
| JPS5949202U (en) | signal input circuit | |
| JPS62109513U (en) | ||
| JPS6234371U (en) | ||
| JPH03113539U (en) | ||
| JPH01147535U (en) |