JPS6228179U - - Google Patents
Info
- Publication number
- JPS6228179U JPS6228179U JP11835185U JP11835185U JPS6228179U JP S6228179 U JPS6228179 U JP S6228179U JP 11835185 U JP11835185 U JP 11835185U JP 11835185 U JP11835185 U JP 11835185U JP S6228179 U JPS6228179 U JP S6228179U
- Authority
- JP
- Japan
- Prior art keywords
- input terminals
- terminals
- operational amplifiers
- inverting input
- circuit
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
第１図は本案の回路図、第２図は従来の接地抵
抗測定器の概略の回路図にして、其の回路内の７
，７′の点間に第１図の本案回路の入力端子３，
４を挿入接続せしめるべきものである。第３図は
第１図回路の入力端子３，４に於て、端子４を接
地端子とした場合、端子４に対する端子３の電位
極性の変化に対する出力端子６，６′の電位極性
の変化を表に示すものである。
Figure 1 is a circuit diagram of the present invention, and Figure 2 is a schematic circuit diagram of a conventional grounding resistance measuring device.
, 7' between the input terminals 3, 7' of the proposed circuit in FIG.
4 should be inserted and connected. Figure 3 shows the change in potential polarity of output terminals 6, 6' with respect to the change in potential polarity of terminal 3 with respect to terminal 4 when terminal 4 is the ground terminal at input terminals 3 and 4 of the circuit in Figure 1. These are shown in the table.
補正 昭６０．１１．１１ 図面の簡単な説明を次のように補正する。Correction 11/11/1980 The brief description of the drawing has been amended as follows.
【図面の簡単な説明】
第１図は本案の回路図、第２図は従来の接地抵
抗測定器の概略の回路図にして、其の回路内の７
，７′の点間に第１図の本案回路の入力端子３，
４を挿入接続せしめるべきものである。第３図は
第１図回路の入力端子３，４に於て端子４を接地
端子とした場合、端子４に対する端子３の電位極
性の変化に対する出力端子６，６′の電位極性の
変化を図表に示すものである。[Brief explanation of the drawings] Figure 1 is a circuit diagram of the present invention, and Figure 2 is a schematic circuit diagram of a conventional grounding resistance measuring device, showing the 7 parts in the circuit.
, 7' between the input terminals 3, 7' of the proposed circuit in FIG.
4 should be inserted and connected. Figure 3 shows the change in potential polarity of output terminals 6 and 6' with respect to the change in potential polarity of terminal 3 with respect to terminal 4, when terminal 4 is the ground terminal in the input terminals 3 and 4 of the circuit shown in Figure 1. These are shown in the table .
Claims (1)
転入力端子と非反転入力端子とを相互に接続して
入力端子３，４となし而して、其のオペアンプの
電源には其の入力端子３，４に付加される電圧と
同じ周波数の交流電圧をダイオード等を介して付
加したる回路の該入力端子３，４を第２図に示す
如き摺動抵抗器方式接地抵抗測定器の摺動抵抗器
８の摺動子ａと中間の端子ｐとの間の７，７′の
点間に挿入接続せしめたるもの。 As shown in Fig. 1, the inverting input terminals and non-inverting input terminals of two operational amplifiers 1 and 2 are connected together to form input terminals 3 and 4, and the input terminals are connected to the power supply of the operational amplifiers. The input terminals 3 and 4 of a circuit in which an alternating voltage of the same frequency as the voltage applied to the terminals 3 and 4 is applied via a diode etc. are connected to the input terminals 3 and 4 of a sliding resistor type earth resistance measuring instrument as shown in FIG. It is inserted and connected between the points 7 and 7' between the slider a of the dynamic resistor 8 and the intermediate terminal p.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11835185U JPS6228179U (en) | 1985-08-01 | 1985-08-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11835185U JPS6228179U (en) | 1985-08-01 | 1985-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6228179U true JPS6228179U (en) | 1987-02-20 |
Family
ID=31004722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11835185U Pending JPS6228179U (en) | 1985-08-01 | 1985-08-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6228179U (en) |
-
1985
- 1985-08-01 JP JP11835185U patent/JPS6228179U/ja active Pending
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