A light transmittance precision detection mechanism

Abstract

The invention discloses a precise detection mechanism for light transmittance, which includes a frame and a detection system, and the detection system includes a light source module for emitting light, a first jig for carrying the light source module, and a detection module for detecting light transmittance , the first jig is a floating jig, the bottom of the first jig is provided with a lifting drive device for driving it up and down in the vertical direction, and the outer periphery of the first jig is provided with a second jig for carrying the product to be tested. In the light transmittance precision detection mechanism disclosed in the present invention, after the product to be tested is placed, the light source module contacts the product to be tested during the rising process, and the light source module can self-adaptively adjust its own posture to promote the light transmission part of the product and the light source The light-emitting part of the module can be more closely bonded, reducing light leakage and improving the stability of the test.

Description

technical field [0001] The invention relates to the field of light transmittance detection, in particular to a precise light transmittance detection mechanism. Background technique [0002] Some products need to be equipped with a light-transmitting part. The light-emitting part of the light source module provides an incident light to the light-transmitting part and generates a transmitted light. The intensity of the transmitted light is sensed by a photoresistive sensor and an analog signal is generated. Through an AD conversion module The analog signal is converted into a digital signal, and the digital signal is processed by a single-chip computer to calculate the light transmittance (light transmittance) of the product to be tested. In the prior art, the light source module is usually placed on the jig, and the product is placed on the light source module. The light-transmitting part of the product and the light-emitting part of the light source module face up and down. ...

AI Technical Summary

Problems solved by technology

In the prior art, the light source module is usually placed on the jig, and the product is placed on the light source module. The light-transmitting part of the product and the light-emitting part of the light source module face up and down. The light source module and the product are difficult to attach due to problems such as flatness. If it is tightly closed, it will cause light leakage, so that all the light emitted by the light-emitting part cannot enter the light guide hole, which will affect the detection accuracy.

Images