JPH022676U - - Google Patents
Info
- Publication number
- JPH022676U JPH022676U JP8225488U JP8225488U JPH022676U JP H022676 U JPH022676 U JP H022676U JP 8225488 U JP8225488 U JP 8225488U JP 8225488 U JP8225488 U JP 8225488U JP H022676 U JPH022676 U JP H022676U
- Authority
- JP
- Japan
- Prior art keywords
- measured
- current
- insulation resistance
- resistance measuring
- capacitive object
- 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
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
第１図はこの考案の実施例を示す回路図、第２
図はＦＥＴのドレイン電流ＩＤ対ドレイン・ソー
ス電圧ＶＤＳ特性を示す図、第３図は従来の絶縁
抵抗測定器の回路図、第４図は第１図及び第３図
の回路における充電電流の変化特性を示す図であ
る。
Figure 1 is a circuit diagram showing an embodiment of this invention, Figure 2 is a circuit diagram showing an embodiment of this invention.
The figure shows the drain current ID vs. drain-source voltage VDS characteristic of an FET, Figure 3 is a circuit diagram of a conventional insulation resistance measuring device, and Figure 4 shows changes in charging current in the circuits of Figures 1 and 3. FIG. 3 is a diagram showing characteristics.
Claims (1)
電流を電流検出抵抗素子にて検出する絶縁抵抗測
定器において、 上記容量性被測定物と直列にＦＥＴ（電界効果
トランジスタ）が接続され、 上記定常電流の検出に先立つて、定電流で上記
容量性被測定物が充電されることを特徴とする絶
縁抵抗測定器。[Claims for Utility Model Registration] In an insulation resistance measuring device that applies a DC voltage to a capacitive object to be measured and detects the steady current using a current detection resistance element, an FET (electric field 1. An insulation resistance measuring instrument, characterized in that the capacitive object to be measured is charged with a constant current prior to detecting the steady current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8225488U JPH0637340Y2 (en) | 1988-06-20 | 1988-06-20 | Insulation resistance measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8225488U JPH0637340Y2 (en) | 1988-06-20 | 1988-06-20 | Insulation resistance measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH022676U true JPH022676U (en) | 1990-01-09 |
| JPH0637340Y2 JPH0637340Y2 (en) | 1994-09-28 |
Family
ID=31307017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8225488U Expired - Lifetime JPH0637340Y2 (en) | 1988-06-20 | 1988-06-20 | Insulation resistance measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637340Y2 (en) |
-
1988
- 1988-06-20 JP JP8225488U patent/JPH0637340Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0637340Y2 (en) | 1994-09-28 |
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