Switch type digital displacement sensor using displacement amplification
Title：
Switch type digital displacement sensor using displacement amplification
Application Number：
 200510012185
Application Date：
 2005/07/15
Announcement Date：
 2005/11/30
Pub. Date：
Publication Number：
 1702434
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G01D 5/347, G01D 5/12
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Chen Lun, Li Yunhe
Key Words：
 Switch type, digital, displacement sensor, displacement amplification
Abstract：
 A switching-type digital displacement sensor with displacement amplification belongs to technical field of displacement sensing device, which comprises following characteristics: displacement sliver with engraved stria, connected with displacement object; gear amplification mechanism for transforming the linear displacement generated by displacement sliver into angular displacement; axes with light source, gearing with gear amplification mechanism; annular grid with axes as the centre of circle, bearing photoelectric grid with equivalent width and interval, connected with annular conductor in one side; each grid is connected to conductive masses on another side and concatenated in circuit through both of them; beam width ejected from the light source is no less than grid width; when there is a displacement between objects, the displacement sliver drives the axes circumrotating through gear amplification mechanism, and the light ejected from the light source on the axes scans the grid to generate conductivity and conduct the circuit to get the displacement by dealing with the signals exported from the circuit.
Claim：
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PCT：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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