Title:
PROXIMITY AND CONTACT SENSOR AND SENSOR ELEMENT
Document Type and Number:
WIPO Patent Application WO/2007/086358
Kind Code:
A1
Abstract:
A proximity sensor (10) is provided with a sensor element (11) and a detection circuit (16). The sensor element is provided with a base material (13) wherein coil-like carbon fiber (12) is dispersed. A high frequency oscillation circuit (19) of the detection circuit (16) supplies the sensor element with a high frequency signal. A detector (22) in the detection circuit (16) receives an output signal from the sensor element (11) and detects proximity of an object (24). In one example, the coil-like fiber is contained in the base material by 1-20 mass%. In another example, a high frequency oscillation circuit generates a high frequency signal of 100-800kHz.
Inventors:
MOTOJIMA SEIJI (JP)
YANG SHAOMING (JP)
TAKAKI MAKOTO (JP)
KAWABE KENJI (JP)
YANG SHAOMING (JP)
TAKAKI MAKOTO (JP)
KAWABE KENJI (JP)
Application Number:
PCT/JP2007/050952
Publication Date:
August 02, 2007
Filing Date:
January 23, 2007
Export Citation:
Assignee:
SHIMADZU CORP (JP)
CMC TECHNOLOGY DEV CO LTD (JP)
MOTOJIMA SEIJI (JP)
YANG SHAOMING (JP)
TAKAKI MAKOTO (JP)
KAWABE KENJI (JP)
CMC TECHNOLOGY DEV CO LTD (JP)
MOTOJIMA SEIJI (JP)
YANG SHAOMING (JP)
TAKAKI MAKOTO (JP)
KAWABE KENJI (JP)
International Classes:
H03K17/945; G01V3/08; G01V3/10; H03K17/955; H03K17/96; H01H36/00
Foreign References:
| JP2005291927A | 2005-10-20 | |||
| JP2005049331A | 2005-02-24 |
Attorney, Agent or Firm:
ONDA, Hironori (Ohmiya-cho 2-chome Gifu-shi, Gifu 31, JP)
Download PDF: