JPH01118372U - - Google Patents
Info
- Publication number
- JPH01118372U JPH01118372U JP1149988U JP1149988U JPH01118372U JP H01118372 U JPH01118372 U JP H01118372U JP 1149988 U JP1149988 U JP 1149988U JP 1149988 U JP1149988 U JP 1149988U JP H01118372 U JPH01118372 U JP H01118372U
- Authority
- JP
- Japan
- Prior art keywords
- measuring instrument
- impedance measuring
- current
- power supply
- control signal
- 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
- 238000005259 measurement Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
第1図は本願考案の一実施例の主要部の構成を
示す図、第2図はDCバイアスの電流レベルを一
定に保つための回路構成の主要部を示す図、第3
図は能動インダクタの構成例を示す図である。
101:AC電源、113,113′:可変レ
ベルDC電源、107:DUT、117,201
,207:バツフア、119:DC検出/AD変
換器、203:能動インダクタ。
FIG. 1 is a diagram showing the configuration of the main part of an embodiment of the present invention, FIG. 2 is a diagram showing the main part of the circuit configuration for keeping the DC bias current level constant, and FIG.
The figure is a diagram showing an example of the configuration of an active inductor. 101: AC power supply, 113, 113': Variable level DC power supply, 107: DUT, 117, 201
, 207: buffer, 119: DC detection/AD converter, 203: active inductor.
Claims (1)
定対象のインピーダンスを測定するインピーダン
ス測定器において、 前記測定対象にバイアス用の直流を印加すると
ともにデイジタル制御信号に応答して前記直流の
出力レベルを変化させる直流電源と、 前記測定対象の直流電圧または直流電流を、デ
イジタル値に変換する手段と、 前記デイジタル値に基づき前記直流電圧または
直流電流が予め設定した値になるように前記デイ
ジタル制御信号を前記直流電源に与える制御手段
、 とを設けたことを特徴とするインピーダンス測定
器。 (2) 請求項1記載のインピーダンス測定器にお
いて、 前記測定対象の第1端には前記交流および前記
直流が印加され、 前記測定対象の第2端には該第2端を仮想接地
する手段が接続されている、 ことを特徴とするインピーダンス測定器。[Claims for Utility Model Registration] (1) An impedance measuring instrument that measures the impedance of a measurement object by applying alternating current to the measurement object, which applies a bias direct current to the measurement object and responds to a digital control signal. a DC power supply for changing the output level of the DC; means for converting the DC voltage or DC current of the object to be measured into a digital value; and means for converting the DC voltage or DC current to a preset value based on the digital value. An impedance measuring instrument comprising: control means for applying the digital control signal to the DC power supply so that the digital control signal is applied to the DC power supply. (2) The impedance measuring instrument according to claim 1, wherein the alternating current and the direct current are applied to a first end of the object to be measured, and a second end of the object to be measured includes means for virtually grounding the second end. An impedance measuring instrument characterized in that:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1149988U JPH01118372U (en) | 1988-01-29 | 1988-01-29 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1149988U JPH01118372U (en) | 1988-01-29 | 1988-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH01118372U true JPH01118372U (en) | 1989-08-10 |
Family
ID=31220107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1149988U Pending JPH01118372U (en) | 1988-01-29 | 1988-01-29 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01118372U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013011444A (en) * | 2011-06-28 | 2013-01-17 | Hioki Ee Corp | Impedance measuring device |
-
1988
- 1988-01-29 JP JP1149988U patent/JPH01118372U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013011444A (en) * | 2011-06-28 | 2013-01-17 | Hioki Ee Corp | Impedance measuring device |