SU1245898A1 - Spectrophotometer for registering spectra of particle solid substances - Google Patents

Abstract

The invention relates to optical spectral instrument making and allows increasing the productivity of measurements of spectra of radiation scattering solids. The device contains an illuminator 1, a cuvette compartment 2, a monochromator, 3, a radiation receiver 4, a beam splitter 5, a concave spherical mirror 6, a sample cuvette 7, an objective 8. The illuminator 1 generates two equal radiation beams forming the reference channel and the sample channel. For better irradiation of the sample, a part of the beam of the comparison channel with the help of the beam splitter 5 and the spherical mirror 6 is directed to the sample cell. Lens 8 is installed in the sample channel and serves to increase the density of the light flux on the sample. 1 il. Q CO cl

Description

I

The invention relates to optical spectral instrumentation and can be -irtified by recording transmission and reflection spectra of dispersed solids.

The purpose of the invention is to increase the performance of measurements of spectra that scatter radiation of solids.

The drawing shows the diagram of the design of the spectrophotometer

The spectrophotometer contains an illuminator 1, a cuvette compartment 2, a monochromator 3, a radiation receiver 4, a beam splitter 5, a concave spherical mirror 6, a sample cell 8 for the sample lens 8, the Illuminator 1 creates two equal beams of radiation forming the reference channel and the sample channel. Lens 8 for the infrared region of the spectrum can be performed. in the form of an EHF lens, the Sample, placed in the sample cuvette 7, is located in the focus of the objective 8 and the concave spherical mirror 6, the Splitter 5 is a comb with a mirror outer surface.

The spectrophotometer works as follows

In one of the channels of the cuvette compartment 2, a cuvette 7 is installed with a sample of dispersed solid material deposited on it. For the best

Editor A. Kozoriz

Compiled by O. Isaeva

Tehred 0, Sopko KoppeKTiop A, Zimokosov

Order 3988/32 Circulation 778 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Proektna st, 4

45898

the irradiance of the sample to be measured, a portion of the beam of the comparison channel with the help of a splitter 5 and a concave 1 spherical mirror 6 is directed 5 to the sample cell. To increase the density of the light flux on the sample, a lens 8 is installed in the sample channel. The light transmitted by the sample is decomposed into spectrum 10 using a monochromator 3 and recorded by the radiation receiver 4,

Claims (1)

Invention Formula A spectrophotometer for recording spectra of dispersed solids containing optically coupled illuminator, a cuvette compartment consisting of a reference channel and a channel. a sample with a sample cuvette installed in it, a monochromator and a radiation receiver, characterized in that, in order to increase the measurement performance, The cuvette compartment further comprises a beam splitter, a concave spherical mirror and a lens, the beam splitter being installed in the comparison channel and optically coupled to A spherical concave mirror, and the lens is installed in the sample channel, this sample cell is located at the focus of the lens and the concave spherical mirror.