JPH0411475U - - Google Patents
Info
- Publication number
- JPH0411475U JPH0411475U JP5083390U JP5083390U JPH0411475U JP H0411475 U JPH0411475 U JP H0411475U JP 5083390 U JP5083390 U JP 5083390U JP 5083390 U JP5083390 U JP 5083390U JP H0411475 U JPH0411475 U JP H0411475U
- Authority
- JP
- Japan
- Prior art keywords
- contact
- voltage
- converts
- conversion circuit
- current
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
第１図は本考案の電気接点のダイナミツク接触
抵抗計測装置の一実施例を示すブロツク図、第２
図は第１図における主要部の信号波形図である。
１……電磁継電器駆動回路、２……接点負荷回
路、３……電流電圧変換回路、４……接点電圧検
出回路、５，６……Ａ／Ｄ変換回路、７……演算
部、８……コイル、９……接点、１０……電磁継
電器。
FIG. 1 is a block diagram showing an embodiment of the dynamic contact resistance measuring device for electrical contacts of the present invention, and FIG.
The figure is a signal waveform diagram of the main parts in FIG. 1. DESCRIPTION OF SYMBOLS 1... Electromagnetic relay drive circuit, 2... Contact load circuit, 3... Current voltage conversion circuit, 4... Contact voltage detection circuit, 5, 6... A/D conversion circuit, 7... Arithmetic unit, 8... ...coil, 9...contact, 10...electromagnetic relay.
Claims (1)
条件での接点負荷回路と、前記電気接点に流れる
電流を電圧に変換する電流電圧変換回路と、前記
電流電圧変換回路によつてアナログ電圧に変換さ
れた接点電流をデイジタル信号に変換する第１の
Ａ／Ｄ変換回路と、前記電気接点の閉成時の接点
電圧を検出する接点電圧検出回路と、前記接点電
圧検出回路で検出されたアナログ電圧をデイジタ
ル信号に変換する第２のＡ／Ｄ変換回路と、前記
２つのデイジタル信号を入力してダイナミツク接
触抵抗を計算する演算部とを備えることを特徴と
する電気接点のダイナミツク接触抵抗計測装置。 In an electromagnetic relay or the like having electrical contacts, a contact load circuit under operating conditions, a current-voltage conversion circuit that converts the current flowing through the electrical contact into voltage, and a contact converted into an analog voltage by the current-voltage conversion circuit. a first A/D conversion circuit that converts current into a digital signal; a contact voltage detection circuit that detects a contact voltage when the electrical contact is closed; and a contact voltage detection circuit that converts the analog voltage detected by the contact voltage detection circuit into a digital signal. 1. A dynamic contact resistance measuring device for an electrical contact, comprising: a second A/D conversion circuit that converts the digital signals; and an arithmetic unit that inputs the two digital signals and calculates the dynamic contact resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5083390U JPH0411475U (en) | 1990-05-16 | 1990-05-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5083390U JPH0411475U (en) | 1990-05-16 | 1990-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0411475U true JPH0411475U (en) | 1992-01-30 |
Family
ID=31569729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5083390U Pending JPH0411475U (en) | 1990-05-16 | 1990-05-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0411475U (en) |
-
1990
- 1990-05-16 JP JP5083390U patent/JPH0411475U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0411475U (en) | ||
| JPH0255180U (en) | ||
| JPH01171370U (en) | ||
| JPS61205081U (en) | ||
| JPS6267688U (en) | ||
| JPS62133167U (en) | ||
| JPH0285082U (en) | ||
| JPH01179281U (en) | ||
| JPS62193571U (en) | ||
| JPH01163876U (en) | ||
| JPS63113966U (en) | ||
| JPS6393577U (en) | ||
| JPH02135871U (en) | ||
| JPH0232069U (en) | ||
| JPH0388166U (en) | ||
| JPS63175869U (en) | ||
| JPS6082275U (en) | power detection circuit | |
| JPS6082274U (en) | Load current measurement circuit for voltage generator | |
| JPH0384901U (en) | ||
| JPS62104167U (en) | ||
| JPS6173U (en) | AC resistance measuring device | |
| JPS61136441U (en) | ||
| JPH0316740U (en) | ||
| JPS6330300U (en) | ||
| JPH0291434U (en) |