Contact displacement sensor measurement device and circuit
A displacement sensor and measuring device technology, applied in the field of sensors, can solve the problems of high difficulty in signal acquisition, high difficulty in signal processing, complex post-processing circuits, etc., and achieve the effects of improving system flexibility, fast measurement speed, and simple structure
Active Publication Date: 2018-12-18
TSINGHUA UNIV
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Problems solved by technology
The problems of the above patents are: complex structure, complex optical path inside; high difficulty in signal acquisition, complicated post-processing circuit
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention:
[0026] figure 1 Schematically shows the external overall structure of the contact displacement sensor measuring device; figure 2 Schematically shows the internal structure of the measuring part in the preferred embodiment of the measuring device; image 3 Schematically shows the structure of the data conversion unit in the preferred embodiment of the measuring device; Figure 4 Schematically shows the circuit design block diagram of the contact displacement sensor measurement circuit; Figure 5 It schematically shows the program operation block diagram of the contact displacement sensor measurement circuit.
[0027] Such as figure 1 , 2 As shown, the present invention provides a contact displacement sensor measuring device, which includes: a measuring part...
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The invention discloses a contact displacement sensor measurement device. The contact displacement sensor measurement device comprises a measurement part and a data conversion part; the measurement part comprises a shell; the connection part on the top of the shell and the data conversion part are detachably connected; the connection part is provided with a support arm, and extends to the bottom of the shell; the sensor in the shell is electrically connected with the data conversion part; the first end of the sensor is fixed on a measurement pen; the second end lower than the first end is fixed on the support arm; the tail end of the measurement pen capable of vertically moving in the shell is provided with a probe extending from the bottom end face of the shell, and relatively moves corresponding to a tested body, so that the measurement pen is driven to upwardly move; the first end is far away from the second end; strain is generated; and the data conversion part completes measurement. The invention further discloses a contact displacement sensor measurement circuit. According to the contact displacement sensor measurement device and circuit in the invention, on the basis of a flexible strain sensor, measurement is carried out by adoption of a detachable structure matched with the flexible strain sensor; therefore, the system flexibility, the original signal sensitivity and the measurement accuracy are improved; the circuit complexity is reduced; the structure is simple; and measurement is rapid.
Description
technical field [0001] The invention relates to the technical field of sensors, in particular to a contact displacement sensor measuring device and a measuring circuit. Background technique [0002] The contact displacement sensor measuring device is a commonly used size measuring sensor in the industry. It is often used in conjunction with three-coordinate measuring instruments and other equipment. It is an indispensable measuring equipment in modern production. Traditional contact displacement sensor measurement devices are usually measured by technical solutions such as mechanical type, differential transformer type, and grating ruler. [0003] For example, Chinese patent document CN1108384A discloses "contact displacement sensor measuring device for contour measurement", and Chinese patent document CN107003118A discloses "displacement sensor, displacement detection device and displacement detection method". The two patent documents use grating rulers to measure displacem...
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IPC IPC(8): G01B7/02
CPCG01B7/02
Inventor 王丰朱宏伟
Owner TSINGHUA UNIV