JPS62201073U - - Google Patents
Info
- Publication number
- JPS62201073U JPS62201073U JP9028786U JP9028786U JPS62201073U JP S62201073 U JPS62201073 U JP S62201073U JP 9028786 U JP9028786 U JP 9028786U JP 9028786 U JP9028786 U JP 9028786U JP S62201073 U JPS62201073 U JP S62201073U
- Authority
- JP
- Japan
- Prior art keywords
- measuring device
- value
- resistance
- resistance measuring
- time
- 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
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 1
Description
第１図ないし第４図はこの考案による抵抗測定
装置の実施例に係り、第１図はその回路構成を示
すブロツク線図、第２図は測定原理説明用の波形
図、第３図は動作説明用のタイミング図、第４図
はフローチヤート、第５図は従来装置のブロツク
線図である。
図中、１は直流定電圧源、２，７は抵抗／電圧
変換器、３はＡ／Ｄコンバータ、４はマイクロコ
ンピユータ、６は直流定電流源、８はスタートス
イツチ、９は５０／６０Ｈｚ設定器である。
Figures 1 to 4 relate to an embodiment of the resistance measuring device according to this invention. Figure 1 is a block diagram showing its circuit configuration, Figure 2 is a waveform diagram for explaining the measurement principle, and Figure 3 is the operation. 4 is a flowchart, and FIG. 5 is a block diagram of a conventional device. In the figure, 1 is a DC constant voltage source, 2 and 7 are resistance/voltage converters, 3 is an A/D converter, 4 is a microcomputer, 6 is a DC constant current source, 8 is a start switch, and 9 is a 50/60Hz setting. It is a vessel.
Claims (1)
源から電流を供給してその抵抗値に比例する大き
さの電圧を形成し、Ａ／Ｄコンバータを介して得
られる上記電圧のデイジタル変換値を演算手段に
て演算することにより上記抵抗値を求める抵抗測
定装置において、 上記演算手段は、上記Ａ／Ｄコンバータの任意
の時点における最初のデイジタル変換値と、上記
任意の時点から所定時間経過後におけるデイジタ
ル変換値との平均値から上記抵抗値を求めるよう
にされていることを特徴とする抵抗測定装置。 (2) 上記所定時間は商用電源周波数に関連して
切換え可能であり、上記周波数の１周期の１／２
に等しい時間に設定されていることを特徴とする
実用新案登録請求の範囲第１項記載の抵抗測定装
置。[Claims for Utility Model Registration] (1) Supplying current from a DC constant voltage source or constant current source to a resistor to be measured to form a voltage proportional to its resistance value, and then converting the A/D converter. In the resistance measuring device that calculates the resistance value by calculating the digital conversion value of the voltage obtained through the calculation means, the calculation means calculates the first digital conversion value of the A/D converter at any point in time. , the resistance measuring device is characterized in that the resistance value is determined from an average value of digitally converted values after a predetermined time has elapsed from the arbitrary point in time. (2) The above-mentioned predetermined time can be changed in relation to the commercial power supply frequency, and is 1/2 of one cycle of the above-mentioned frequency.
2. The resistance measuring device according to claim 1, wherein the resistance measuring device is set to a time equal to .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9028786U JPS62201073U (en) | 1986-06-13 | 1986-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9028786U JPS62201073U (en) | 1986-06-13 | 1986-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62201073U true JPS62201073U (en) | 1987-12-22 |
Family
ID=30950007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9028786U Pending JPS62201073U (en) | 1986-06-13 | 1986-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62201073U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5574467A (en) * | 1978-11-30 | 1980-06-05 | Olympus Optical Co Ltd | Method of eliminating noise from known frequency |
| JPS58178264A (en) * | 1982-04-12 | 1983-10-19 | Advantest Corp | Digital resistance measuring apparatus |
-
1986
- 1986-06-13 JP JP9028786U patent/JPS62201073U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5574467A (en) * | 1978-11-30 | 1980-06-05 | Olympus Optical Co Ltd | Method of eliminating noise from known frequency |
| JPS58178264A (en) * | 1982-04-12 | 1983-10-19 | Advantest Corp | Digital resistance measuring apparatus |
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