JPS61190870U - - Google Patents
Info
- Publication number
- JPS61190870U JPS61190870U JP7546085U JP7546085U JPS61190870U JP S61190870 U JPS61190870 U JP S61190870U JP 7546085 U JP7546085 U JP 7546085U JP 7546085 U JP7546085 U JP 7546085U JP S61190870 U JPS61190870 U JP S61190870U
- Authority
- JP
- Japan
- Prior art keywords
- inverting amplifier
- amplifier circuit
- circuit
- measurement
- capacitor
- 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 description 9
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Measurement Of Current Or Voltage (AREA)
Description
第１図は、本考案の一実施例を示す構成図、第
２図乃至第４図は、本考案の一実施例における動
作図、第５図は、従来例の構成図である。
Ｃ１，Ｃ２…Ｃｎ……コンデンサ、Ｓ１，Ｓ２
…Ｓｎ……サンプリングスイツチ、Ｓｒ……リセ
ツトスイツチＳｒ、Ｓａ，Ｓｂ及びＳｃ……測定
回路と非測定回路との切換え用スイツチ、Ｃａ…
…オフセツト電圧充電用コンデンサ、Ｖａ……定
電圧源。
FIG. 1 is a block diagram showing an embodiment of the present invention, FIGS. 2 to 4 are operational diagrams of the embodiment of the present invention, and FIG. 5 is a block diagram of a conventional example. C 1 , C 2 ... C n ... Capacitor, S 1 , S 2
...S n ...Sampling switch, S r ...Reset switch S r , Sa, Sb and Sc ... Switch for switching between measurement circuit and non-measurement circuit, Ca ...
...Offset voltage charging capacitor, Va...constant voltage source.
Claims (1)
増幅回路に受入れる測定回路又は受入れない非測
定回路を構成する第１切換手段と、該非測定回路
における前記非反転増幅回路のオフセツトと所定
の定電圧との重畳信号によつて充電されるコンデ
ンサと、前記測定回路に切換えるとき、前記コン
デンサを前記非反転増幅回路の帰還回路に挿入す
る第２切換手段とを備えることを特徴とする測定
装置。 (2) 前記第１切換手段は、各測定点に対応して
設けられ各測定電流によつて個々に充電される測
定信号充電コンデンサの充電電圧を、順次切換え
て前記非反転増幅回路に与える第１スイツチと、
前記非反転増幅回路の入力ラインと基準電位点と
の間に設ける第２スイツチとで構成されることを
特徴とする実用新案登録請求の範囲第１項の測定
装置。 (3) 前記第１切換手段は、前記第１スイツチの
全てをオフにすると共に、前記第２スイツチをオ
ンにして前記非測定回路を構成することを特徴と
する実用新案登録請求の範囲第２項の測定装置。 (4) 前記第２切換手段は、前記非反転増幅回路
の帰還端子に一端を接続する前記コンデンサ及び
基準電位点に一端を接続する定電圧源の間に直列
的に接続する第３スイツチと、該コンデンサの両
端子夫々と前記非反転増幅回路の帰還信号取出し
点との間に設ける第４及び第５スイツチとで構成
されることを特徴とする実用新案登録請求の範囲
第１項の測定装置。[Claims for Utility Model Registration] (1) A non-inverting amplifier circuit, a first switching means constituting a measuring circuit that accepts a measurement signal into the non-inverting amplifier circuit or a non-measuring circuit that does not accept the measurement signal, and A capacitor charged by a superimposed signal of an offset of an inverting amplifier circuit and a predetermined constant voltage, and a second switching means for inserting the capacitor into a feedback circuit of the non-inverting amplifier circuit when switching to the measurement circuit. A measuring device comprising: (2) The first switching means sequentially switches a charging voltage of a measurement signal charging capacitor provided corresponding to each measurement point and charged individually by each measurement current, and applies the charging voltage to the non-inverting amplifier circuit. 1 switch and
The measuring device according to claim 1, which is a registered utility model, characterized in that it comprises a second switch provided between the input line of the non-inverting amplifier circuit and a reference potential point. (3) The first switching means turns off all of the first switches and turns on the second switch to configure the non-measurement circuit. term measuring device. (4) the second switching means includes a third switch connected in series between the capacitor having one end connected to the feedback terminal of the non-inverting amplifier circuit and a constant voltage source having one end connected to the reference potential point; The measuring device according to claim 1 of the utility model registration, characterized in that it is constituted by fourth and fifth switches provided between both terminals of the capacitor and a feedback signal extraction point of the non-inverting amplifier circuit. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985075460U JPH0537248Y2 (en) | 1985-05-21 | 1985-05-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985075460U JPH0537248Y2 (en) | 1985-05-21 | 1985-05-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61190870U true JPS61190870U (en) | 1986-11-27 |
| JPH0537248Y2 JPH0537248Y2 (en) | 1993-09-21 |
Family
ID=30616700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985075460U Expired - Lifetime JPH0537248Y2 (en) | 1985-05-21 | 1985-05-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537248Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02183148A (en) * | 1989-01-09 | 1990-07-17 | Toshiba Corp | X-ray ct apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472660A (en) * | 1977-11-21 | 1979-06-11 | Yokogawa Hokushin Electric Corp | Analog digital converter |
-
1985
- 1985-05-21 JP JP1985075460U patent/JPH0537248Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472660A (en) * | 1977-11-21 | 1979-06-11 | Yokogawa Hokushin Electric Corp | Analog digital converter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02183148A (en) * | 1989-01-09 | 1990-07-17 | Toshiba Corp | X-ray ct apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0537248Y2 (en) | 1993-09-21 |
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