Vernier caliper

A vernier caliper and depth gauge technology, applied in the field of vernier calipers, can solve the problems of easily changing the current position of the slider and affecting the reading of the vernier caliper
CN107101546AInactive Publication Date: 2017-08-29翁毅
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
翁毅
Publication Date
2017-08-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides a vernier caliper. A slider can be fixed relative to a main ruler by an electromagnet so as to keep its position constant without affecting the reading of the vernier caliper. The control mode of the electromagnet is intelligent. In particular, after it is judged that the slider stops moving, the electromagnet is energized under control.
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Description

technical field

[0001] The invention relates to a measuring tool, more specifically to a vernier caliper. Background technique

[0002] Vernier Caliper is a measuring tool for measuring length, inner and outer diameters, and depth. The vernier caliper is composed of two parts, the main ruler and the sliding vernier attached to the main ruler. The main ruler is generally in millimeters, and the vernier has 10, 20 or 50 divisions.

[0003] For example, the patent document whose publication number is CN101210794 discloses a vernier caliper, which includes a main ruler with a first outer measuring jaw, and a slider with a second outer measuring jaw that cooperates with the first outer measuring jaw. , the vernier caliper also includes an air blowing device, and the air blowing device includes at least one air receiving device and a corresponding air receiving device arranged between the first outer measuring jaw and the second outer measuring jaw. At least one gas passage com...

Claims

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