JPH0397674U - - Google Patents
Info
- Publication number
- JPH0397674U JPH0397674U JP597890U JP597890U JPH0397674U JP H0397674 U JPH0397674 U JP H0397674U JP 597890 U JP597890 U JP 597890U JP 597890 U JP597890 U JP 597890U JP H0397674 U JPH0397674 U JP H0397674U
- Authority
- JP
- Japan
- Prior art keywords
- measured
- switching
- current
- voltage
- resistance value
- 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 description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Description
第１図は本考案に係るデジタルマルチメータの
一実施例を示す要部構成図、第２図および第３図
は従来のデジタルマルチメータの構成と抵抗測定
状態を表わす図である。
１…定電流源、２…電圧計、３…測定対象物、
４…電圧源、５…スイツチ、６…制御手段、７…
演算手段、８…出力手段。
FIG. 1 is a diagram showing the main part of an embodiment of a digital multimeter according to the present invention, and FIGS. 2 and 3 are diagrams showing the configuration and resistance measurement state of a conventional digital multimeter. 1...constant current source, 2...voltmeter, 3...measurement object,
4... Voltage source, 5... Switch, 6... Control means, 7...
Arithmetic means, 8... Output means.
Claims (1)
、測定対象物に生ずる電圧を内部の電圧計で測定
し、電流と電圧の関係から測定対象物の抵抗値を
測定するデジタルマルチメータにおいて、 前記定電流源からの供給電流を互いに異なる２
つの電流値に切り換える切り換え手段と、 前記供給電流、および供給電流の切り換えの前
後で測定した各電圧値を確保し、それらの値を基
に所定の演算を行い測定対象物の抵抗値を求める
演算手段と、 求められた前記抵抗値を出力する出力手段と、 測定開始信号が与えられると前記切り換え手段
および演算手段を駆動ないし制御する制御手段 を具備し、測定対象の内部に電圧源が含まれてい
る場合にはその影響を受けない抵抗測定ができる
ように構成したことを特徴とするデジタルマルチ
メータ。[Claims for Utility Model Registration] Supply current to the object to be measured from an internal constant current source, measure the voltage generated in the object with an internal voltmeter, and determine the resistance value of the object from the relationship between the current and voltage. In a digital multimeter that measures
a switching means for switching between two current values, and an operation for obtaining the supply current and each voltage value measured before and after switching the supply current, and performing a predetermined operation based on these values to obtain the resistance value of the object to be measured. means, an output means for outputting the determined resistance value, and a control means for driving or controlling the switching means and the calculation means when a measurement start signal is applied, and a voltage source is included inside the object to be measured. A digital multimeter characterized in that it is configured to be able to measure resistance without being affected by the situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP597890U JPH0397674U (en) | 1990-01-25 | 1990-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP597890U JPH0397674U (en) | 1990-01-25 | 1990-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0397674U true JPH0397674U (en) | 1991-10-08 |
Family
ID=31509662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP597890U Pending JPH0397674U (en) | 1990-01-25 | 1990-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0397674U (en) |
-
1990
- 1990-01-25 JP JP597890U patent/JPH0397674U/ja active Pending