JPS613478U - Non-galvanometer ground resistance measuring device - Google Patents
Non-galvanometer ground resistance measuring deviceInfo
- Publication number
- JPS613478U JPS613478U JP8832584U JP8832584U JPS613478U JP S613478 U JPS613478 U JP S613478U JP 8832584 U JP8832584 U JP 8832584U JP 8832584 U JP8832584 U JP 8832584U JP S613478 U JPS613478 U JP S613478U
- Authority
- JP
- Japan
- Prior art keywords
- input terminal
- light emitting
- logic
- galvanometer
- measuring device
- 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
- 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図は本考案実施の回路例で発光ダイオードを直接接
続したものである。
第２図は同しく実施の回路例で発光ダイオードをトラン
ジスターを介して接続したものである。
第３図は入力端子１，５間の電位レベルの変化に対する
出力端子６，６′の電位レベルの変化を表にしたもので
ある。
第４図は従来の接地抵抗測定器の回路図を示すもので１
０は回転型可変抵抗器、１１は検流計を示すものである
。FIG. 1 shows an example of a circuit implementing the present invention, in which light emitting diodes are directly connected. FIG. 2 shows an example of the circuit in which light emitting diodes are connected via transistors. FIG. 3 is a table showing changes in the potential level at the output terminals 6 and 6' with respect to changes in the potential level between the input terminals 1 and 5. Figure 4 shows the circuit diagram of a conventional ground resistance measuring device.
0 indicates a rotary variable resistor, and 11 indicates a galvanometer.
Claims (1)
ペアンプＩＣ（Ｂ）の非反転入力端子に接続され、而し
て入力端子５はオペアンプＩＣＡの非反転入力端子とオ
ペアンプＩＣ（Ｂ）の反転入力端子に接続されアースさ
れて居る。 而して其の両ＩＣの囚（Ｂ）の出力端子６，６′間に発
光ダイオードを単独か又は発光体を接続せるトランジス
ターを、其の極性が相反するが如き状態で並列に挿入接
続し面して又其の出力端子６，６′はナンド又はアンド
等のロジクＩＣ（Ｅ）の入力端子８，９に接続され、而
して其のロジ列Ｃ （Ｅ）の串力蝉子７にも又発光ダイ
オードを単独か又は発光体を接続せるトランジスターを
接続したる零電位検出回節を従来使用されて居た、接地
抵抗測定器の検流計を除去したる回路に挿入接続したる
無検流計接地抵抗測定器。[Claims for Utility Model Registration] Input terminal 1 is connected to the inverting input terminal of operational amplifier IC (A) and the non-inverting input terminal of operational amplifier IC (B), and input terminal 5 is connected to the non-inverting input terminal of operational amplifier IC (B). and is connected to the inverting input terminal of the operational amplifier IC (B) and grounded. Therefore, between the output terminals 6 and 6' of the capacitors (B) of both ICs, a light emitting diode alone or a transistor connected to a light emitting body is inserted and connected in parallel with the polarities of the light emitting diodes being opposite to each other. In addition, its output terminals 6 and 6' are connected to the input terminals 8 and 9 of a logic IC (E) such as a NAND or AND, and the output terminals 6 and 6' of the logic IC (E) are connected to the input terminals 8 and 9 of the logic IC (E) such as NAND or AND, and the output terminals 6 and 6' of the logic IC (E) are connected to the input terminals 8 and 9 of the logic IC (E) such as NAND or AND. In addition, a zero potential detection circuit consisting of a light emitting diode alone or a transistor connected to a light emitting body is inserted and connected to a circuit which eliminates the galvanometer of a conventionally used earth resistance measuring device. Non-galvanometer earth resistance measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8832584U JPS613478U (en) | 1984-06-13 | 1984-06-13 | Non-galvanometer ground resistance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8832584U JPS613478U (en) | 1984-06-13 | 1984-06-13 | Non-galvanometer ground resistance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS613478U true JPS613478U (en) | 1986-01-10 |
Family
ID=30641351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8832584U Pending JPS613478U (en) | 1984-06-13 | 1984-06-13 | Non-galvanometer ground resistance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS613478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63189351U (en) * | 1987-05-26 | 1988-12-06 |
-
1984
- 1984-06-13 JP JP8832584U patent/JPS613478U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63189351U (en) * | 1987-05-26 | 1988-12-06 | ||
| JPH0534775Y2 (en) * | 1987-05-26 | 1993-09-02 |
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