JPH01110362U - - Google Patents
Info
- Publication number
- JPH01110362U JPH01110362U JP505588U JP505588U JPH01110362U JP H01110362 U JPH01110362 U JP H01110362U JP 505588 U JP505588 U JP 505588U JP 505588 U JP505588 U JP 505588U JP H01110362 U JPH01110362 U JP H01110362U
- Authority
- JP
- Japan
- Prior art keywords
- capacitance
- detects
- main electrode
- detecting changes
- detector
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は本考案になる静電容量検出器の一実施
例を示す正面断面図、第２図は従来の静電容量検
出器の構成を示す図、第３図は第２図に示す検出
ヘツド２を物体１に接近させた際、発生する電気
力線５の状態を示す図である。
１……被測定対象物体、２，９……検出ヘツド
、３……発振回路、４……電圧検出器、５，１１
……電気力線、６……主電極、７，８……補助電
極、１０……バイアス電源、Ｌ……インダクタ、
Ｒ……抵抗、Ｔ……誘導トランス。
Figure 1 is a front sectional view showing an embodiment of the capacitance detector of the present invention, Figure 2 is a diagram showing the configuration of a conventional capacitance detector, and Figure 3 is the detection shown in Figure 2. 2 is a diagram showing the state of electric lines of force 5 generated when the head 2 approaches the object 1. FIG. 1... Object to be measured, 2, 9... Detection head, 3... Oscillation circuit, 4... Voltage detector, 5, 11
... Lines of electric force, 6 ... Main electrode, 7, 8 ... Auxiliary electrode, 10 ... Bias power supply, L ... Inductor,
R...resistance, T...induction transformer.
Claims (1)
する検出ヘツドと、この検出ヘツドにより検出さ
れた静電容量値に基づいた共振状態を検出する検
出回路とから構成される静電容量検出器であつて
、 前記検出ヘツドは静電容量の変化を検出する主
電極と、この主電極と上記被測定物との間に生じ
る電気力線を被測定物上の特定の部分に収束する
補助電極とから構成したことを特徴とする静電容
量検出器。[Claim for Utility Model Registration] A detection head that detects a change in capacitance that occurs between the device and the object to be measured, and a detection circuit that detects a resonance state based on the capacitance value detected by the detection head. A capacitance detector comprising: a main electrode for detecting changes in capacitance; and a main electrode for detecting changes in capacitance; and an auxiliary electrode that converges on a specific portion of the capacitance detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP505588U JPH01110362U (en) | 1988-01-19 | 1988-01-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP505588U JPH01110362U (en) | 1988-01-19 | 1988-01-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01110362U true JPH01110362U (en) | 1989-07-25 |
Family
ID=31208096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP505588U Pending JPH01110362U (en) | 1988-01-19 | 1988-01-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01110362U (en) |
-
1988
- 1988-01-19 JP JP505588U patent/JPH01110362U/ja active Pending