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It is designed for recording absorption spectra of solid, liquid and gaseous substances in the near and middle IR region (including drugs, lacquers and paints, petroleum products, explosives, pharmacological preparations, polymer films and fibers) with their subsequent identification, as well as for qualitative and quantitative analysis of mixtures containing several components.

It allows recording transmission spectra of objects with sizes from 500 microns (precious stones, optical parts, semiconductor materials). It is also used in the study of samples compressed into small-diameter tablets with KBr (the method is convenient for spectral analysis of powdery substances - the prefix allows you to work with small amounts of the sample using a manual press for the manufacture of tablets). • The diameter of the focus spot is less than 3 mm • The design uses parabolic mirror optics • The set-top box is equipped with a set of replaceable diaphragm holders for samples of different sizes • Windows-substrates made of IR-transparent materials can be placed in the holder after pasty, liquid substances or extracts are applied to them, followed by drying of the layers • The slide table has the possibility of smooth movement in vertical and horizontal directions to achieve the maximum signal level

FT-801 IR Fourier spectrometers can additionally be equipped with a special optical set-top box that allows efficient use of light-guide systems. 4 types of light-guide probes allow measuring transmission and reflection spectra in solid, liquid and gaseous media Modern IR light guides have high intrinsic transmittance and sufficient mechanical strength, which makes it possible to transfer measurements from the laboratory directly to production - to control the flow of technological processes, check the quality of raw materials and finished products. Application areas: · Chemical and microbiological industry · Pharmaceutical industry · Medicine and Cosmetology · Food industry · Petroleum products, fuels and lubricants · Criminology

It is intended for express analysis of various types of solid and liquid samples, including polymer particles, films and fibers, powdery substances, fragments of paint coatings, fuels and lubricants. The presence of an optical system for visual inspection of the surface under study with an increase of 75X ensures high efficiency when working with small samples – fragments of thin fibers, microparticles, etc. The universal clamp is equipped with a precision lever mechanism for quickly lowering the tip and a micrometer screw that allows you to pre–set the optimal degree of pressure - this ensures quick sample change and repeatability of the results during measurements. For convenience when working with liquid and paste-like samples, as well as in the ZDO mode, it is possible to rotate the clamping console by 180o. The console is equipped with two replaceable tips – with a spherical working part and with a flat hinged head. A replacement table is used to register the specular and diffuse reflection spectra. The sample is located on the subject plane of the investigated surface downwards, the angle of incidence of the central beam on the sample is 45 °. The method is used to determine the spectral characteristics of optical parts, crystals, thin films on the surface, as well as to register the absorption spectra of large solid objects. Transmission in the operating range of the spectrum, % of the input signal at least 30 The recommended number of scans when registering spectra is 25 Spectrum registration time at 25 scans (resolution 4 cm-1), sec 30 The depth of penetration of radiation into the sample, microns 5 – 15 Minimum area of a solid sample, mm 0.2 × 0.2 Minimum volume of the liquid under study, ml 1 Minimum dimensions of the fiber sample: cross-section diameter/length, mm 0.1/1 Substrate crystal material ZnSe CVD, Ge Focusing spot diameter, mm 1 The angle of incidence of radiation (central beam) on the sample in the ZDO mode 45o Magnification of the micro lens / total magnification of the visual channel 4X /75X Field of view of the optical system, mm 2 X 2.5 Digital video camera resolution 640 X 480 Overall dimensions, mm 150×150×260 Weight, kg 2.15 • Allows you to study objects of small size (from 200 microns - depending on the geometry, surface quality and physico-chemical properties of the material) • The attachment allows you to work without sample preparation, has a fixed adjustment of the pressure on the sample using a clamp equipped with color indicators • Thanks to the removable flange with the NPVO element, a quick and convenient sample change and cleaning of the crystal surface is provided • At a given optimal contact force, the method provides high quality and repeatability of results due to the absence of influence of the thickness of the substance layer on the shape of the spectrum and the intensity of the absorption bands • The sample retains its original physical and chemical properties and, if necessary, can be further investigated by other methods

It is intended for express analysis of various types of solid opaque samples, including polymer films and fragments, paint coatings, finished dosage forms in the form of tablets, optical parts and semiconductor materials. • The sample is located on the subject plane of the investigated surface downwards, the angle of incidence of the central beam on the sample is 45 ° • The diameter of the focus spot is 3 mm • Allows you to explore objects of any shape and size • When using a mini-press, it allows you to examine samples in the form of a thin layer rolled out on a mirror plate made of alloy steel (radiation passes through the substance layer twice, reflecting from the mirror surface) • Not used: for the study of bulk and liquid substances

It is used in the study of samples compressed into small-diameter tablets with KBr (the method is convenient for spectral analysis of powdery substances - the prefix allows you to work with small amounts of the sample using a manual press for the manufacture of tablets). • The diameter of the focus spot is less than 3 mm • Parabolic mirror optics are used in the design • Windows-substrates can be placed in the prefix after pasty, liquid substances or extracts are applied to them, followed by drying of the layers • Limited use – in the study of whole samples with dimensions less than 5 mm (preferably using a vertical-type microfocusing attachment)

CDL lasers of the KLM-808-x series are optimal sources of continuous radiation for the construction of control and automation systems, for scientific and medical purposes.

Technical specifications: Operating spectral range, cm-1 from 400 to 7800 Spectral resolution, cm-1, not more than 0.7 The limit of the absolute error of the wavenumber scale, cm-1 ± 0.05 Signal-to-noise ratio (RMS) for the wavenumber 2150 cm-1, determined in the range ± 50 cm-1 for a resolution of 4 cm-1 and an accumulation time of 60 s, at least 40,000 The limit of deviation of the 100% transmission line from the nominal values for the wave number 2150 cm-1, determined in the range ± 50 cm-1, % ± 0.2 The level of positive and negative pseudo-scattered light caused by the nonlinearity of the photodetector system, % ± 0.25 The time of setting the operating mode of the spectrometers, h, no more than 2 Continuous operation time of spectrometers, h, not less than 8 Power consumption, In × A, not more than 65 Overall dimensions, mm, not more than 580x550x340 Weight, kg, not more than 32 Average time to failure, h, not less than 2500 Average service life of the spectrometer, years, at least 5

Designed for monitoring processes in reactors, vacuum chambers, gas pipelines, etc.

The main difference between this set-top box and the universal set-top box of the NPVO and ZDO is that a prism is used as a working element of the MNPVO, which allows to obtain several reflections from the area of contact with the sample under study, which leads to an improvement in the quality of the spectrum and an increase in the sensitivity of the method (absorption bands become more pronounced). The registration of specular and diffuse reflection spectra (ZDO) is not provided on this set-top box. The MNPVO prefix is effective in registering the absorption spectra of samples whose dimensions (number) are sufficient to ensure contact with the entire area of the working face of the prism: * liquids of any degree of viscosity (solutions, suspensions, oils, etc.); * solid elastic samples (polymer fragments of sufficiently large size, rubbers, plastics, etc.); * powdered samples in quantities sufficient to be applied to the entire surface and samples in the form of thin tapes; The universal clamp is equipped with a precision lever mechanism for quickly lowering the tip and a micrometer screw that allows you to pre–set the optimal degree of pressure - this ensures quick sample change and repeatability of the results during measurements. For convenience when working with liquid and paste-like samples, it is possible to rotate the clamping console by 180o. Note: the MNPVO prefix does not exclude the possibility of registering the spectra of samples whose dimensions are smaller than the area of the working face of the prism (the presence of a visual inspection system of the surface under study increases convenience when working with small-sized objects), but the overall effectiveness of the method is significantly lower than when using the universal NPVO and ZDO prefix. Transmission in the operating range of the spectrum, % of the input signal of at least 25 · The recommended number of scans when registering spectra is 25 · Spectrum registration time at 25 scans (resolution 4 cm-1), 30 seconds · The depth of penetration of radiation into the sample, microns 5 – 15 · Minimum area of a solid sample, mm2 1 · Minimum volume of the test liquid, ml 0.3 · The permissible pH range of the analyzed objects is from 5 to 9 · Crystal substrate material ZnSe CVD, Ge · Diameter of the focus spot, mm 3 · Number of reflections 3 · The size of the working face of the prism, mm 21 X 6 · Magnification of the 4X micro lens · Total magnification of the visual channel 75X · Field of view of the optical system, mm 2 X 2.5 · Digital video camera resolution 640 X 480 · Overall dimensions, mm 145×125×240 · Weight, kg 2

Laser modules of the KLM-B808-x-5 series are optimal sources of coherent radiation for the construction of control and automation systems, alignment and marking devices, for scientific and medical purposes.

To achieve the maximum sensitivity during measurements, a special prefix is used to the FT-801 Fourier spectrometer, which is an optical unit with a built-in highly sensitive MST detector cooled with liquid nitrogen. The set-top box is installed in the cuvette compartment of the spectrometer and connected to the corresponding external electrical port, the detector is turned on programmatically. In this case, the sensitivity of the method increases many times (up to 20) – depending on the type of standard uncooled detector in the spectrometer). The speed of recording spectra is also increasing. The operating time after filling the cryostat (200 ml capacity) with liquid nitrogen is at least 6 hours. Increasing the sensitivity of the spectrometer using a prefix with an MST detector may be required for many applications: in fiber spectroscopy, when recording emission spectra of low-power emitters, in trace gas analysis with high spectral resolution, when determining the presence of impurities in samples in ultra-low concentrations, when using multi-pass gas cuvettes, etc. In the picture: on the left in the cuvette compartment there is a capler with fiber from Art photonics GmbH, Berlin, Germany, on the right there is a prefix with an MST detector. Technical specifications The recommended number of scans when registering spectra is 16 Spectrum registration time at 50 scans (resolution 4 cm-1), sec 20 Cryostat capacity, 200 ml Working time after filling the cryostat, 6 hours Overall dimensions, mm 225×175×75 Weight, kg 1.45