JPS63135172U - - Google Patents
Info
- Publication number
- JPS63135172U JPS63135172U JP2618987U JP2618987U JPS63135172U JP S63135172 U JPS63135172 U JP S63135172U JP 2618987 U JP2618987 U JP 2618987U JP 2618987 U JP2618987 U JP 2618987U JP S63135172 U JPS63135172 U JP S63135172U
- Authority
- JP
- Japan
- Prior art keywords
- measurement terminal
- cable
- coupled
- terminal
- measurement
- 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
- 238000005259 measurement Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
第１図は本考案の一実施例を含む直読精密デイ
ジタル容量計のブロツク構成図、第２図及び第３
図は本考案を説明する為の補助図、第４図及び第
５図は従来の測定端子構造の例を示す要部概略図
である。
１〜３……ケーブル、Ｃ……ケーブル容量、ｒ
……ケーブルのリード抵抗、Ｒｆ……レンジ抵抗
、Ｒ１……基準側負荷抵抗。
Fig. 1 is a block diagram of a direct reading precision digital capacitance meter including an embodiment of the present invention, Figs.
The figure is an auxiliary diagram for explaining the present invention, and FIGS. 4 and 5 are schematic diagrams of main parts showing examples of conventional measurement terminal structures. 1 to 3...Cable, C...Cable capacity, r
...Cable lead resistance, Rf... Range resistance, R1... Reference side load resistance.
Claims (1)
して接続され且つＡＣ信号電源に結合された第１
の測定端子と、前記第１の端部に第２のケーブル
を介して接続され且つ基準系に結合された第２の
測定端子と、前記被測定容量の第２の端部に第３
のケーブルを介して接続され且つＣ―Ｖ変換器を
構成する演算増幅器の反転入力端子に結合された
第３の測定端子と、前記第２の端部に第４のケー
ブルを介して接続され且つレンジ抵抗に結合され
た第４の測定端子とを有するデジタル容量計にお
ける４端子構成の測定端子構造において、前記第
３のケーブル又は第４のケーブルのうち一方を除
去し、前記第３の測定端子と前記第４の測定端子
とを結合して一体化し３端子構成としたことを特
徴とするデイジタル容量計の測定端子構造。 a first connected to a first end of the capacitance under test via a first cable and coupled to an AC signal power supply;
a second measurement terminal connected to the first end via a second cable and coupled to a reference system; and a third measurement terminal connected to the second end of the capacitance to be measured.
a third measurement terminal connected to the second end via a cable and coupled to an inverting input terminal of an operational amplifier constituting the CV converter, and a fourth measurement terminal connected to the second end via a fourth cable; In the measurement terminal structure of a four-terminal configuration in a digital capacitance meter having a fourth measurement terminal coupled to a range resistance, one of the third cable or the fourth cable is removed, and the third measurement terminal is connected to the third measurement terminal. and the fourth measurement terminal are combined and integrated to form a three-terminal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987026189U JPH074598Y2 (en) | 1987-02-24 | 1987-02-24 | Measuring terminal structure of digital capacitance meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987026189U JPH074598Y2 (en) | 1987-02-24 | 1987-02-24 | Measuring terminal structure of digital capacitance meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63135172U true JPS63135172U (en) | 1988-09-05 |
| JPH074598Y2 JPH074598Y2 (en) | 1995-02-01 |
Family
ID=30827038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987026189U Expired - Lifetime JPH074598Y2 (en) | 1987-02-24 | 1987-02-24 | Measuring terminal structure of digital capacitance meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH074598Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50113468U (en) * | 1974-02-25 | 1975-09-16 | ||
| JPS59187272A (en) * | 1983-04-07 | 1984-10-24 | Nippon Columbia Co Ltd | Electric constant measuring apparatus |
-
1987
- 1987-02-24 JP JP1987026189U patent/JPH074598Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50113468U (en) * | 1974-02-25 | 1975-09-16 | ||
| JPS59187272A (en) * | 1983-04-07 | 1984-10-24 | Nippon Columbia Co Ltd | Electric constant measuring apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH074598Y2 (en) | 1995-02-01 |
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