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High-precision photoelectric sensor angle detection system, calibration method and detection method

A photoelectric sensor and angle detection technology, applied in the detection field, can solve the problems of high cost, complex calculation, unsuitable for mass production, etc., and achieve the effect of low cost, simple process, and large-scale production application

Pending Publication Date: 2019-01-11
珠海市运泰利自动化设备有限公司
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Problems solved by technology

But both of these two methods have the following problems: the cost is too high, the calculation is complicated, and they are not suitable for mass production

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  • High-precision photoelectric sensor angle detection system, calibration method and detection method
  • High-precision photoelectric sensor angle detection system, calibration method and detection method

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Embodiment Construction

[0032] Such as Figure 1 to Figure 2As shown, the high-precision photoelectric sensor angle detection system of the present invention includes a laser transmitter 1, a product machine 2, a PSD board 3, and a product to be tested is fixed on the product machine 2, and the laser transmitter 1 The product to be tested is irradiated, the PSD board 3 is located on the laser light path reflected by the product to be tested and the plate surface of the PSD board 3 is perpendicular to the laser light path reflected by the product to be tested in the initial state, when the external force makes the product to be tested When deformation occurs, the incident angle or reflection angle of the laser light on the product to be tested changes, the light spot formed by the laser reflected by the product to be tested on the PSD board 3 moves, and the external output voltage of the PSD board 3 changes. According to the change of the voltage value, the change of the angle value of the product und...

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Abstract

The invention aims at providing a high-precision photoelectric sensor angle detection system which is simple in operation, low in cost and suitable for large-scale production, a calibration method anda detection method thereof. The system comprises a laser emitter (1), a product cabinet (2), and a PSD board card (3); a to-be-detected product is fixed on the product cabinet, the laser emitter irradiates the to-be-detected product, and the PSD board card is located at a laser path reflected by the to-be-detected product; when external force enables the to-be-detected product to deform, an incident angle or a reflecting angle of the laser on the to-be-detected angle is changed, a light spot formed by laser reflected by the to-be-detected product on the PSD board card is moved, and the voltage externally output by the PSD board card is changed; the above system is calibrated, and a method for performing angle detection through the calibrated system comprises the following steps: assumingthat the to-be-detected product is in a rotation angle of delta theta; detecting voltage change of the PSD board card; and obtaining the rotation angle delta theta of the to-be-detected product. The system provided by the invention is applied to the detection field.

Description

technical field [0001] The invention relates to the field of detection, in particular to a high-precision photoelectric sensor angle detection system, a calibration method for the system and a method for using the calibrated system to detect angle changes caused by deformation of products to be measured by using photoelectric sensors. Background technique [0002] When an object is vibrated or deformed by an external force, it will cause an angular change on its surface. Many times, these angular changes are detected to determine how much an object is vibrating or being subjected to an external force. At present, it mainly uses a portable digital laser vibrometer (PDV: Portable Digital Vibrometer) and a Sony stacked lens (RS-CMOS) for detection. The detection method of PDV is to use the Doppler effect, use the received vibration object to modulate the emitted light speed, calculate the speed of the vibration object through the algorithm, convert it into relative displacemen...

Claims

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Application Information

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IPC IPC(8): G01B11/26
CPCG01B11/26
Inventor 杨文解苏宣豪徐爽孟凡伟赖程奇梁宝山阳初骆栋罗安立
Owner 珠海市运泰利自动化设备有限公司
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