40-type one-way diameter measurer measuring head
A technology of caliper and measuring head, which is applied to measuring devices, instruments, and optical devices, etc., can solve problems such as difficult measurement.
Active Publication Date: 2015-11-11
成都西普达科技有限公司
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Problems solved by technology
At present, the accuracy of the laser scanning caliper can reach up to 0.5um. The small diameter measurement is not easy to measure because the spot itself is larger than the measured object, and the phenomenon of interference and diffraction occurs. However, there are related filament caliper, which is Utilizes the scanning measurement principle
Method used
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[0015] Example: see figure 1 and figure 2 , a 40 unidirectional caliper measuring head, including a relatively independent transmitter and receiver, and a base 3 for installing the transmitter and receiver, and also includes a cavity for placing the measured object between the transmitter and the receiver , the cavity spacing between the transmitter and the receiver is adjustable; the transmitter includes a transmitter box body 1, the transmitter box body 1 is provided with a laser 4 emitting a laser beam, and the transmitter end of the laser 4 corresponds to The position is provided with an axially vertical eight-sided mirror 5, and the eight-sided mirror 5 is provided with a brushless DC motor 6 that drives it to rotate. Including transmitting mirror base 7 and positive lens A14 for receiving the light refracted by octagonal mirror 5 inside; The receiving mirror group includes a receiving mirror base 8 and a positive lens B15 and a positive lens C16 disposed therein. The ...
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The invention provides a 40-type one-way diameter measurer measuring head comprising a transmitter and a receiver which are relatively independent, a base for installing the transmitter and receiver, and a cavity arranged between the transmitter and receiver and used to place a tested object. The measuring head is characterized in that the cavity spacing between the transmitter and the receiver is adjustable; and the transmitter includes a transmitting end box which is internally equipped with a laser emitting laser beams, and an octahedral mirror of which the axial direction is perpendicular to the laser is arranged in a corresponding position of the transmitting end of the laser. The semiconductor laser emits laser beams; a brushless direct-current motor drives the octahedral mirror to rotate at high speed; the laser beams emitted by the laser are scanned and converted by the octahedral mirror into parallel light; the parallel light sequentially passes through a doublet lens A, a doublet lens B and a positive lens and then passes through a test area; and when there is a tested object in the test area, the tested object blocks part of the parallel light, the blocked parallel light passes through a positive lens B and a positive lens C (which are focusing prisms), and the focusing prisms convert the blocked parallel light into low level on a photoelectric receiving tube.
Description
technical field [0001] The invention relates to the field of laser measuring equipment, in particular to a measuring head of a 40-way caliper measuring instrument. Background technique [0002] Calipers can be divided into laser scanning caliper, CCD projection caliper, and laser diffraction caliper. The former two belong to the geometric principle of optics, and the latter uses the principle of laser diffraction. Calipers are widely used in various industries such as wire and cable, enameled wire, metal wire, PVC pipe, and medical equipment. Both online detection and offline detection are available, and automatic feedback control and online communication with the computer can be realized. Through the development of the caliper industry, rotatable caliper and hand-held caliper have been derived. [0003] The laser scanning caliper is also the most used one, and it was developed earlier by beta company abroad. The laser scanning caliper uses a rotating eight-sided mirror t...
Claims
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Inventor 易敏
Owner 成都西普达科技有限公司