IT1266048B1 - Proximity sensor of the capacitive type - Google Patents
Proximity sensor of the capacitive typeInfo
- Publication number
- IT1266048B1 IT1266048B1 IT92PI000006A ITPI920006A IT1266048B1 IT 1266048 B1 IT1266048 B1 IT 1266048B1 IT 92PI000006 A IT92PI000006 A IT 92PI000006A IT PI920006 A ITPI920006 A IT PI920006A IT 1266048 B1 IT1266048 B1 IT 1266048B1
- Authority
- IT
- Italy
- Prior art keywords
- sensor
- capacitive type
- proximity sensor
- plates
- flat plates
- Prior art date
Links
- 230000000694 effects Effects 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
Landscapes
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A proximity sensor of the capacitive type comprises two adjacent flat plates facing the object to be detected and a screening and stabilizing plate shaped in such a way as to cover the top and side of one of the said flat plates. The sensor is supported on a printed electrical circuit board, the aforesaid plates consisting of portions of the metallic layers of the said board. The resulting structure provides a high degree of stability and reliability, practically cancelling the effect of spurious capacitance between the plates, and thus allowing the sensor to be used both in environments with changeable climatic conditions and in measuring the distance of objects made from various kinds of material. <IMAGE>
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT92PI000006A IT1266048B1 (en) | 1992-02-19 | 1992-02-19 | Proximity sensor of the capacitive type |
EP93101933A EP0556682B1 (en) | 1992-02-10 | 1993-02-08 | Electronic capacitive sensor bar device |
AT93101933T ATE160864T1 (en) | 1992-02-10 | 1993-02-08 | ELECTRONIC CAPACITIVE SENSOR BAR DEVICE |
DE69315452T DE69315452T2 (en) | 1992-02-10 | 1993-02-08 | Electronic capacitive sensor rod device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT92PI000006A IT1266048B1 (en) | 1992-02-19 | 1992-02-19 | Proximity sensor of the capacitive type |
Publications (3)
Publication Number | Publication Date |
---|---|
ITPI920006A0 ITPI920006A0 (en) | 1992-02-19 |
ITPI920006A1 ITPI920006A1 (en) | 1993-08-19 |
IT1266048B1 true IT1266048B1 (en) | 1996-12-20 |
Family
ID=11393714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT92PI000006A IT1266048B1 (en) | 1992-02-10 | 1992-02-19 | Proximity sensor of the capacitive type |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1266048B1 (en) |
-
1992
- 1992-02-19 IT IT92PI000006A patent/IT1266048B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITPI920006A0 (en) | 1992-02-19 |
ITPI920006A1 (en) | 1993-08-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19980216 |