JPH0424060U - - Google Patents
Info
- Publication number
- JPH0424060U JPH0424060U JP6657390U JP6657390U JPH0424060U JP H0424060 U JPH0424060 U JP H0424060U JP 6657390 U JP6657390 U JP 6657390U JP 6657390 U JP6657390 U JP 6657390U JP H0424060 U JPH0424060 U JP H0424060U
- Authority
- JP
- Japan
- Prior art keywords
- electrode pattern
- detection electrode
- forming part
- ceramic resonator
- sensor device
- 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 9
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
第１図は本考案に係る静電センサ装置の一実施
例を示す要部断面構成図、第２図は同実施例装置
の正面図、第３図は第２図の一部省略側面図、第
４図はセラミツク共振器を用いた静電センサ装置
の１チヤンネルの回路構成を示すブロツク図、第
５図は静電センサ装置の静電容量検出例の説明図
、第６図はセラミツク共振器を用いた提案装置の
説明図、第７図はセラミツク共振器の出力端子か
ら電極針の先端までの距離と共振周波数の関係を
示す特性説明図である。
１……発振回路、２……同調回路、３……検出
部、４……検波回路、５……増幅回路、６……プ
リント基板、７，７ａ，７ｂ……セラミツク共振
器、８，８ａ，８ｂ……出力端子、９……グラン
ド実装面、１０……導体パターン、１１……電極
針、１２……導体ケース、１３ａ，１３ｂ……挿
入孔、１４……電極パターン形成部、１５ａ，１
５ｂ……検出電極パターン、１６ａ，１６ｂ……
検出電極面、１７ａ，１７ｂ，１７ｃ……グラン
ドパターン、１８……導体パターン、２０……保
護カバー。
FIG. 1 is a cross-sectional configuration diagram of essential parts showing an embodiment of an electrostatic sensor device according to the present invention, FIG. 2 is a front view of the same embodiment, and FIG. 3 is a partially omitted side view of FIG. 2. Fig. 4 is a block diagram showing the circuit configuration of one channel of an electrostatic sensor device using a ceramic resonator, Fig. 5 is an explanatory diagram of an example of capacitance detection of the electrostatic sensor device, and Fig. 6 is a diagram showing the circuit configuration of one channel of an electrostatic sensor device using a ceramic resonator. FIG. 7 is a characteristic diagram showing the relationship between the distance from the output terminal of the ceramic resonator to the tip of the electrode needle and the resonant frequency. DESCRIPTION OF SYMBOLS 1... Oscillation circuit, 2... Tuning circuit, 3... Detection part, 4... Detection circuit, 5... Amplification circuit, 6... Printed circuit board, 7, 7a, 7b... Ceramic resonator, 8, 8a , 8b... Output terminal, 9... Ground mounting surface, 10... Conductor pattern, 11... Electrode needle, 12... Conductor case, 13a, 13b... Insertion hole, 14... Electrode pattern forming part, 15a, 1
5b...detection electrode pattern, 16a, 16b...
Detection electrode surface, 17a, 17b, 17c...ground pattern, 18...conductor pattern, 20...protective cover.
Claims (1)
電センサ装置であつて、セラミツク共振器が実装
される回路基板には電極パターン形成部が突出形
成されており、この電極パターン形成部には検出
電極パターンが電極パターン形成部の突出方向に
伸張して形成され、検出電極パターンの基端側は
前記セラミツク共振器の出力端子に接続され、検
出電極パターンの伸張先端面は被検出体に対向す
る静電容量変化の検出電極面になつている静電セ
ンサ装置。 This is an electrostatic sensor device in which a resonator is constructed of a ceramic resonator, and an electrode pattern forming part is formed protruding from the circuit board on which the ceramic resonator is mounted, and a detection electrode is formed in this electrode pattern forming part. The pattern is formed to extend in the protruding direction of the electrode pattern forming part, the base end side of the detection electrode pattern is connected to the output terminal of the ceramic resonator, and the extended end surface of the detection electrode pattern is connected to the stationary surface facing the object to be detected. An electrostatic sensor device that serves as a detection electrode surface for changes in capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6657390U JP2514596Y2 (en) | 1990-06-22 | 1990-06-22 | Electrostatic sensor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6657390U JP2514596Y2 (en) | 1990-06-22 | 1990-06-22 | Electrostatic sensor device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0424060U true JPH0424060U (en) | 1992-02-27 |
| JP2514596Y2 JP2514596Y2 (en) | 1996-10-23 |
Family
ID=31599395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6657390U Expired - Lifetime JP2514596Y2 (en) | 1990-06-22 | 1990-06-22 | Electrostatic sensor device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2514596Y2 (en) |
-
1990
- 1990-06-22 JP JP6657390U patent/JP2514596Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2514596Y2 (en) | 1996-10-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |