ELECTRONIC CALLIPER GAUGE

The utility model provides an electronic calliper gauge, comprising a fixed gauge head arranged on a main body and a movable gauge head. The electronic calliper gauge is provided with a power supply, a differential inductive sensor, a measuring circuit and a displaying circuit. A parallel spring fra...

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Bibliographic Details
Main Authors GAO LIUSHENG, WANG JIHONG, DING GE
Format Patent
LanguageEnglish
Published 05.09.1990
Edition5
Subjects
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PHYSICS
TESTING
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Summary:The utility model provides an electronic calliper gauge, comprising a fixed gauge head arranged on a main body and a movable gauge head. The electronic calliper gauge is provided with a power supply, a differential inductive sensor, a measuring circuit and a displaying circuit. A parallel spring frame with a stainless steel pipe in the differential inductance sensor is connected with the movable gauge head. A movable magnetic core sheathed on the stainless steel pipe passes through a differential coil and the movable magnetic core is fixed on the parallel spring frame. The measuring circuit is composed of an oscillator directly connected with the differential inductive sensor, a pre-amplifier, a phase-sensitive detector and a direct current amplifier. The utility model has the advantages of compact structure, small size of the measuring circuit, low power consumption, high reading precision and convenient repair and use.
Bibliography:Application Number: CN1990212416U