Automatic optical gate device of spectrophotometer

Abstract

The invention relates to an improved component structure of a spectrophotometer as a scientific analysis experimental instrument, in particular to a verifying mechanism which is used for automatically regulating 0 percent Tau and 100 percent Tau before the spectrophotometer is used. An automatic optical gate device of the spectrophotometer comprises a receiving darkroom (4) positioned beside a sample chamber (7), a biconvex lens (6) and a photoelectric receiver (4) are sequentially arranged in the receiving darkroom (4) on the light incident direction of an optical gating, a permanent magnet (13) which can move up and down is arranged between the biconvex lens (6) and the photoelectric receiver (4), an electromagnetic coil (12) is arranged above the permanent magnet (13), the lower part of the permanent magnet (13) is connected with an optical gate (15), and a positioning seat (16) is arranged below the optical gate (15). The invention has convenient use, fast operation, high automation degree and strong accuracy, thereby being a spectrophotometer automatic power-on verifying mechanism which has practical value.

Description

(1) Technical field [0001] The invention relates to an improved component structure of a spectrophotometer, a scientific analysis experiment instrument, and particularly relates to a verification mechanism for the spectrophotometer to automatically adjust "0%τ" and "100%τ" before use. (2) Background technology [0002] It is well known that a spectrophotometer can perform qualitative and quantitative analysis of sample substances in the ultraviolet-visible-infrared spectral region. It is one of the commonly used spectral analysis instruments in physical and chemical laboratories. It uses an advanced blazed grating monochromator with high wavelength accuracy. Good monochromaticity, low stray light, etc., adopts microcomputer measurement system, high τ-A conversion accuracy, and has automatic adjustment of 0% and 100%, concentration factor setting, concentration direct reading, and serial data printer can be selected Perform data printing function. Widely used in medicine and...

AI Technical Summary

Problems solved by technology

Although this solution has improved and improved compared with the original technical solution, it reduces the action of turning over and closing the cover, and speeds up the height verification speed, but it still needs to repeatedly pull the handle and repeat the test many times, and it still costs a certain amount of money. time

[0007] In short, in order to accurately adjust the 100% T and 0% T of the instrument, the existing technology requires at least two adjustments of 100% T and one 0% T, and sometimes due to the short start-up time or unskilled operation, the instrument will be adjusted several times. 100% T and 0% T debugging can meet the accuracy of the instrument, which is cumbersome in the operation of the instrument, and there are still human errors, sometimes the debugging is inaccurate due to incorrect positioning of the sample holder or light leakage in the sample chamber

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