Compensation-type angle sensor
An angle sensor, compensation technology, applied in the field of measurement, can solve the problems of poor applicability, low measurement accuracy, limited magnification of the angle sensor, etc., to achieve the effect of convenient calculation, improved measurement accuracy, and reduced size
Inactive Publication Date: 2019-07-02
BEIFANG UNIV OF NATITIES
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Problems solved by technology
However, based on the limitation of the performance of the photodetector, the magnification of the angle sensor is still limited, and the applicability to special applications is poor, or the measurement accuracy is not high
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
[0032] see figure 1 , This embodiment schematically...
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The invention relates to a compensation-type angle sensor which comprises a laser beam 1. The laser beam 1 is incident on a reflecting member. The reflecting member is used for fixing a measured object. The compensation-type angle sensor comprises the reflecting member which is rotatable and is provided with a number of reflecting surfaces in a circumferential direction. Each reflecting surface isused for reflecting the laser beam 1. The compensation-type angle sensor further comprises a concave lens which is used for receiving the laser beam 1 reflected by the reflecting surfaces and causingthe laser beam to refract, a beam splitter which is used for dividing the laser beam 1 reflected by the reflecting surfaces of the reflecting member into a laser beam 2 and a laser beam 3, a photodetector 1 which is used to receive the laser beam 2 reflected by the beam splitter 1 and measure the incident position thereof, and a photodetector 2 which is used to receive the laser beam 3 transmitted through the beam splitter 1 and measure the incident position thereof. The angle sensor refracts the light beam through the concave lens, and can enlarge a small angle change to a large angle changeto improve the measurement accuracy.
Description
technical field [0001] The invention relates to the field of measurement technology, in particular to a compensating angle sensor. Background technique [0002] Angle sensor is a commonly used geometric quantity sensor, which is widely used in many fields such as aerospace, industrial production, machinery manufacturing and military science. For example, the patent number is 201821012924.3, and the Chinese patent titled "A Precision Angle Measuring Sensor" discloses an angle sensor. The sensor installs the measured object on the reflective part, and the reflective part rotates with the measured object when the measured object rotates. , the photodetector receives the beam reflected from different points on the reflective part during the rotation process, and the processing system can calculate the change value of the rotation angle of the measured object according to the change of the incident position of the beam on the photodetector. However, due to the limitation of the ...
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IPC IPC(8): G01B11/26
CPCG01B11/26
Inventor 张白康学亮
Owner BEIFANG UNIV OF NATITIES