JPS62102172U - - Google Patents
Info
- Publication number
- JPS62102172U JPS62102172U JP19298885U JP19298885U JPS62102172U JP S62102172 U JPS62102172 U JP S62102172U JP 19298885 U JP19298885 U JP 19298885U JP 19298885 U JP19298885 U JP 19298885U JP S62102172 U JPS62102172 U JP S62102172U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- voltage power
- potential
- detection probe
- measured
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000523 sample Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例における静電電位計
の要部を示す回路図、第２図は静電電位計の配置
された複写機の概略構成図、第３図は静電電位計
の一般的な構成を示す回路図、第４図は従来用い
られた静電電位計の回路図である。
１１……検出プローブ、１２……音叉、１９…
…高圧電源、３３……フオトトランジスタ、３４
……発光ダイオード、３７……インターロツクス
イツチ。
Fig. 1 is a circuit diagram showing the main parts of an electrostatic electrometer in an embodiment of the present invention, Fig. 2 is a schematic configuration diagram of a copying machine in which an electrostatic electrometer is installed, and Fig. 3 is an electrostatic electrometer. FIG. 4 is a circuit diagram of a conventional electrostatic electrometer. 11...detection probe, 12...tuning fork, 19...
...High voltage power supply, 33...Phototransistor, 34
...Light emitting diode, 37...Interlock switch.
Claims (1)
配置される検出プローブと、この検出プローブに
高圧を印加する高圧電源と、前記検出プローブに
印加された電位が被測定物の電位と一致するよう
前記高圧電源の出力電圧を調整するフイードバツ
ク系と、前記高圧電源の高圧出力のみをオン・オ
フするスイツチング手段とを具備することを特徴
とする静電電位計。 ２ スイツチング手段は、発光ダイオードと対に
なつたフオトトランジスタによつて構成されてお
り、このフオトトランジスタの一端に生じる電位
変化によつて高圧電源の高圧出力がオン・オフさ
れることを特徴とする実用新案登録請求の範囲第
１項記載の静電電位計。[Claims for Utility Model Registration] 1. A detection probe disposed facing an object to be measured whose potential is to be measured, a high-voltage power source that applies high voltage to the detection probe, and a potential applied to the detection probe. An electrostatic electrometer comprising: a feedback system that adjusts the output voltage of the high-voltage power supply to match the potential of the object to be measured; and switching means that turns on and off only the high-voltage output of the high-voltage power supply. 2. The switching means is composed of a phototransistor paired with a light emitting diode, and the high voltage output of the high voltage power source is turned on and off by a potential change occurring at one end of the phototransistor. An electrostatic electrometer according to claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985192988U JPH0453649Y2 (en) | 1985-12-17 | 1985-12-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985192988U JPH0453649Y2 (en) | 1985-12-17 | 1985-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62102172U true JPS62102172U (en) | 1987-06-29 |
| JPH0453649Y2 JPH0453649Y2 (en) | 1992-12-16 |
Family
ID=31148585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985192988U Expired JPH0453649Y2 (en) | 1985-12-17 | 1985-12-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453649Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436980A (en) * | 1977-08-29 | 1979-03-19 | Altec Corp | Meterrdriving circuit |
-
1985
- 1985-12-17 JP JP1985192988U patent/JPH0453649Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5436980A (en) * | 1977-08-29 | 1979-03-19 | Altec Corp | Meterrdriving circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0453649Y2 (en) | 1992-12-16 |