Optical parameter absolute value measuring device and method thereof

An optical parameter and measuring instrument technology, applied in the field of analytical instruments, can solve problems such as poor flexibility, attenuation of light energy reaching the detector, instrument structure design, and complicated installation and debugging, and achieves improved photometric accuracy, easy instrument operation, and light energy. strong effect
CN1746657AInactive Publication Date: 2006-03-15SHANGHAI SPECTRUM INSTR
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI SPECTRUM INSTR
Publication Date
2006-03-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

A measurer of optical parameter absolute value is featured as enabling both detector position and sample table to rotate around sample table center of circle, executing rotary angle by microprocessor CPU according to stepping motor controlled by command from external computer; utilizing air as reference, recording and calculating reflectivity absolute value when measurement is carried out.
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Description

technical field

[0001] The invention belongs to the technical field of analytical instruments, and in particular relates to an optical parameter absolute value measuring instrument and a measuring method thereof, in which both a sample stage and a detector can rotate around the center of the sample stage. Background technique

[0002] When an object is illuminated by a light source, three situations occur: penetration, absorption, and reflection. Ordinary spectrophotometers can only measure the transmission of an object, also known as transmittance. Since the reflected light of the substance cannot be directly incident on the fixed detector vertically, a special measuring reflection accessory is required for the test. The usual measuring reflection accessories adopt the specular reflection principle: according to different reflection angles, multiple reflectors are combined together according to the requirements of the optical path principle, an...

Claims

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