Scale on device for measuring displacement

A scale and displacement technology, applied in measuring devices, electrical devices, mechanical devices, etc., can solve the problems of corrosion, coolant and oil ingress, measurement errors, etc., and achieve the effect of full reliability
CN1382955AInactive Publication Date: 2002-12-04MITUTOYO CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
MITUTOYO CORP
Publication Date
2002-12-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

A scale on a device for measuring displacement, the scale includes a scale part including a plurality of rectangular wire grids formed on a glass-epoxy resin substrate or the like and distributed at intervals, and a scale covered with a multi- A coating on one side of the scale part of a rectangular wire grid, a scale cover layer (film layer) as a protective layer, and the scale constituent material adhered to the outside of the coating with an adhesive layer to prevent contamination, oil or Particles get between the rectangular wire grid and an adhesive layer such as tape.
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Description

field of invention

[0001] The invention relates to a scale on a device for measuring displacement, in particular providing a scale with high environmental resistance on the device for measuring displacement. Background of the invention

[0002] Such as Figure 4 The prior art shown, a scale on a device for measuring displacement, for example, a scale on an electronic caliper disclosed in US Patent No. 5,973,494 to Karl G. Mareliez et al., bonded to a crossbar of a slider Components (in the present invention Figure 4 Indicated as the top surface of P), the scale usually consists of a long printed circuit board. A plurality of rectangular wire grids 12 are spaced apart on a glass-epoxy substrate 11 along the printed circuit board at intervals. The scale also includes a scale cover 30, which is adhered to the top surfaces of the plurality of rectangular wire grids 12 by, for example, adhesive tape. The scale cover 30 acts as a shield for the adhesive layer 20 . Shield 30 ma...

Claims

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