JPS6146474U - circuit tester - Google Patents
circuit testerInfo
- Publication number
- JPS6146474U JPS6146474U JP13174184U JP13174184U JPS6146474U JP S6146474 U JPS6146474 U JP S6146474U JP 13174184 U JP13174184 U JP 13174184U JP 13174184 U JP13174184 U JP 13174184U JP S6146474 U JPS6146474 U JP S6146474U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- measurement
- impedance
- surgit
- power supply
- 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
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案に係るサーキットテスタのブロック図、
第２図は容量及びインダクタンスのインピーダンス測定
時あ周波数特性図、及び第３図は従来のインサーキット
テスタの測定装置の要部フロック図である。
２０・・・・・・サーキットテスタ、２１・・・・・・
可変周波電源、２２・・・・・・第１インピーダンス手
段、２３・・・・・・第２インピーダンス手段、２４・
・・・・・第１測子、２５・・・・・・第２測子、２６
・・・・・・被測定用回路素子、２７・・・・・・演算
増幅器、２８・・・・・・共振周波測定器、２９・・・
・・・測定制御回路。Figure 1 is a block diagram of the circuit tester according to the present invention.
FIG. 2 is a frequency characteristic diagram during impedance measurement of capacitance and inductance, and FIG. 3 is a block diagram of the main parts of a conventional in-circuit tester measuring device. 20...Circuit tester, 21...
variable frequency power supply, 22...first impedance means, 23...second impedance means, 24.
...1st gage, 25...2nd girder, 26
...Circuit element to be measured, 27...Operation amplifier, 28...Resonance frequency measuring device, 29...
...Measurement control circuit.
Claims (1)
第１及び第２インピーダンス手段、このインピーダンス
手段の各他端に接続した第１及び第２測子、及び出力電
圧を生成する演算増幅器を具備し、前記測千間に被測定
用回路素子を接続し未知インピーダンスのＬＣＲを測定
するものにおいて、前記電源はその上限周波数をｌＭＨ
ｚ以上に設定すると共に前記電源の周波数を可変しつつ
測定系の共振点を検出する共振周波測定器を付設して成
り、前記回路素子の未知インピーダンスを、前記共振周
波測定器で共振周波数を検出した後、この検出された共
振点から離れた周波数の測定電圧により測定することを
特徴としたサーギットテスタ。A variable frequency power source for supplying a measurement voltage, first and second impedance means having one ends coupled to each other, first and second probes connected to each other end of the impedance means, and an operational amplifier for generating an output voltage. and for measuring an LCR of unknown impedance by connecting a circuit element to be measured between the measuring points, the power supply has an upper limit frequency of lMH.
z or more, and a resonant frequency measuring device is attached to detect the resonance point of the measurement system while varying the frequency of the power supply, and the unknown impedance of the circuit element is detected by the resonant frequency measuring device. The surgit tester is characterized in that the surgit tester performs measurement using a measurement voltage at a frequency far from the detected resonance point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13174184U JPS6146474U (en) | 1984-08-29 | 1984-08-29 | circuit tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13174184U JPS6146474U (en) | 1984-08-29 | 1984-08-29 | circuit tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6146474U true JPS6146474U (en) | 1986-03-28 |
Family
ID=30690315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13174184U Pending JPS6146474U (en) | 1984-08-29 | 1984-08-29 | circuit tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6146474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998531A (en) * | 2011-09-12 | 2013-03-27 | 日本电产理德株式会社 | Impedance measurement apparatus |
-
1984
- 1984-08-29 JP JP13174184U patent/JPS6146474U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998531A (en) * | 2011-09-12 | 2013-03-27 | 日本电产理德株式会社 | Impedance measurement apparatus |
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