AUTOMATIC DIGITAL MULTI-CHANNEL PRESSURE MAINTENANCE SYSTEM IN THE VACUUM CHAMBER

A membrane nitrogen station is a set of equipment for the production and supply of nitrogen under high pressure obtained from atmospheric air by the method of membrane separation. Unlike the membrane nitrogen plant, the membrane nitrogen station is equipped with additional equipment: a booster compressor that creates the necessary pressure. Put the squeeze on the pump. Composition of a typical membrane nitrogen station: 1. Air compressor 2. Dehumidifier 3. Main filter block, including coal column 4. Air receiver 5. Membrane nitrogen generator 6. Nitrogen receiver 7. Nitrogen booster compressor putting the squeeze on

Provita Company designs and manufactures nitrogen compressor stations based on sea containers (10, 20, 30, 40–feet) and sandwich panel block boxes with standard dimensions and fasteners, which allows them to be transported by road, rail and sea transport. A mobile compressor unit can be carried out on an automobile chassis or on a sled for transportation to remote hard-to-reach regions. The nitrogen compressor station can be supplied in various climatic versions: northern (ambient temperature up to -55°C) standard (from -45 to +45°C) tropical (up to +55°C)

The helium leak detector TI1-50M is a universal highly sensitive device designed to test the tightness of various systems and objects that allow pumping out the internal cavity, as well as those filled with helium or a mixture containing helium, and detect (localize) places of leakage (leaks). Specifications: Measuring range at the leak detector inlet, Pa•m3/s from 5•10-13 to 1•10-5; Range of indications when working by probe method, Pa•m3/s from 1•10-9 to 1•10-5; Time to enter the readiness mode for measurements, no more than, min 5; AC supply voltage, V, Hz 220±10%, 50±1; Power consumption, VA 1200; Overall dimensions (WxHxD), no more than, mm 480x470x390; Weight, no more than, kg 40; Average time to metrological failure, h 15000;

Provita Company designs and manufactures mobile nitrogen stations based on sea containers (10, 20, 30, 40–feet) and sandwich panel block boxes with standard dimensions and fasteners, which allows stations to be transported by road, rail and sea transport. The Provita company also produces installations on automobile chassis or on sleds for transporting stations to remote hard-to-reach regions. Mobile nitrogen modular stations can be supplied in various climatic versions: northern (ambient temperature up to -55°C) standard (ambient temperature from -45 to +45°C) tropical (ambient temperature up to +55°C)

The wide-range IR microscope of the MICRAN series, connected to the FT-801 and Infralum FT-801 Fourier spectrometers, is designed to study samples from 10 microns in size, including heterogeneous in composition. When working on an IR microscope, the operator has the opportunity to observe the object under study with a magnification of over 200X both using binoculars and on a monitor using a digital video camera, during photometry, select a local area of arbitrary shape with the help of diaphragms, and also “scan” the surface of the sample, observing the spectrum obtained in real time.

A membrane nitrogen plant is a set of special equipment designed to produce nitrogen from atmospheric air by the method of membrane separation at a pressure of up to 25 bar. The production of nitrogen in this technological process is based on the principle of separation of gas mixtures in a membrane module, due to the different penetration rates of the components of the gas mixture through polymer membranes and the differential partial pressures on both sides. In the case of separation of the air mixture, oxygen has a greater permeability than nitrogen. The difficult-to-penetrate gas components (N2, CH4, CO) pass along the entire length of the generator and then come to the consumer. The output is a gas mixture with an N2 content of up to 99.9%. The membrane installation allows to obtain high-pressure production gas (nitrogen). The composition of a standard membrane nitrogen production plant: Air compressor; Dehumidifier; Main filter block, including coal column; Air receiver; Membrane generator; Production gas receiver.

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

NanoEducator II, despite its compactness and ease of operation, supports all basic techniques of atomic force and scanning tunneling microscopy, so it can be used for any routine AFM and STM measurements and experiments in scientific research. Here are the results of some experiments in various scientific applications: Study of atomic structures Study of metallic nanostructures Study of magnetic structures Study of polymer objects Study of biological objects Study of carbon nanomaterials

The MS-1104E spectrometer is characterized by high performance and accuracy of Mössbauer measurements achieved through the use of “compressed” geometry, as well as the use of highly efficient and selective resonant scintillation detection units that improve the energy resolution of resonance absorption lines by up to 30%. The technique of software and hardware stabilization of the spectrometric path developed and used in the spectrometer allows for long-term Mossbauer measurements without manual adjustment. The method of modulation in the specified speed intervals can significantly increase the sensitivity and expressiveness of measurements and reduce the time to determine the magnitude of the effects of resonant absorption by tens of times in the study of temperature phase transitions with a low concentration of resonant elements. The electronic components of the spectrometer are developed on the basis of a modern element base using programmable logic matrices and microprocessors. Adjustable spectrometric paths and high-voltage power supplies of the PMU are integrated into detection units, modulator driver modules and multi-channel storage are made in the ISA standard and are located in the processor unit of the computer. Setting and monitoring of all parameters of the spectrometer and processing of the measured spectra is carried out from the operating windows of the control and processing programs. Since 2000, more than ten spectrometers of this type have been supplied to leading scientific organizations in Russia and neighboring countries. One of the few industrial applications of Mössbauer spectroscopy should be noted - the development and supply to the Volgodonsk NPP of certified MS-1104Em methods and spectrometer for monitoring corrosion processes in the heat exchange circuits of the VVER-1000 reactor.

Technical specifications: Range of operation 280-710 nm Diffraction grating (replica) 1250 strokes per millimeter The area of maximum energy concentration 350-450 nm The working order of the spectrum is the first The signal-to-noise ratio on the line is 632.8 nm when detuning from the center of the line by ± 3.3 nm is not worse than 3 * 106 times The slits are fiber optical fibers with a diameter of 200 microns, stacked in 1 row. The height of the slits is 5 mm The resolution of the monochromator with these slits is not worse than 0.34 nm The accuracy of the wavelength setting is not worse than 0.2 nm Dimensions are not more than 335 x 153 x 240 mm Weight is not more than 8 kg Supply voltage 187-242 V Power consumption not more than 12 watts Current frequency 49-51 Hz

The nitrogen adsorption generator is a special equipment designed to produce nitrogen gas from atmospheric air by the method of short-cycle non-heating adsorption. Capacity:300-10000 m3/h Purity: 90-99.9999 % Pressure: 4-450 bar

The ultimate display quality is ensured by the use of built-in acoustic and vibration isolation, thermal stabilization, the industry's best sensitivity of the optical recording system and the unique design of the scanning probe system, which allows achieving atomic resolution in routine measurements. In the basic configuration, 50+ AFM techniques are available, including the HybriD method, which allows conducting all cutting-edge nanomechanical, electrical and magnetic studies. Intelligent ScanTronic™ algorithm for one-click optimization of scanning parameters, which allows for perfect relief measurements using the amplitude-modulation method, regardless of the operator's experience. Automated examination of multiple samples using a simple user interface to create a point-by-point scanning scenario and a database for stored received images. Control of samples with dimensions up to 200×200 mm and thickness up to 40 mm at any point of the surface with a positioning accuracy of 1 micron. Wide customization possibilities: installation of additional optical equipment, development of specialized sample holders, combination with a transport system, automation of measurements and data analysis in accordance with customer requirements.

NT-MDT Spectrum Instruments is an INTEGRA Nano IR–scattering scanning near‑field optical microscope (s-NSOM) designed for the infrared spectral range. The AFM probe is located in the focus of an optical system that directs the IR laser radiation to the sample and collects the optical response. The collected radiation is sent to the Michelson interferometer for optical analysis. The far-field component of the collected signal is suppressed by synchronous detection. The INTEGRA Nano IR system allows detecting the amplitude and phase of the near-field signal. The spatial resolution of the resulting reflection and absorption contrasts is approximately 10 nm and is determined only by the size of the tip of the probe.

NTEGRA Spectra II is already a second-generation measuring system that successfully demonstrates the unification of two worlds: AFM and Raman spectroscopy. It can perform multiple functions ranging from relief mapping to 2D spectral analysis, from studies of electrical and mechanical properties to optical measurements with a resolution below the diffraction limit. Now scientists can conduct a complete physico-chemical analysis of the surface properties of the sample at a time. As a result, researchers get unlimited opportunities to develop their laboratory techniques.

Designed for comprehensive studies of the physical properties of the surface using classical optical microscopy, confocal laser microscopy, confocal spectroscopy and scanning probe microscopy (atomic force microscopy). It allows you to get full spectra of Raman (Raman or Raman) scattering and/or fluorescence, confocal laser and confocal spectral images (surface mapping), SPM (AFM) images. The design of the Centaur I complex allows the use of both separate methods (for example, confocal microscopy / spectroscopy) and the combination of methods (including the combination of scanning fields, AFM / Raman studies, etc.).

A membrane nitrogen generator is a special equipment designed to produce gaseous nitrogen from atmospheric air by the method of membrane separation. The gas separation process proceeds due to the different penetration rates of the components of the gas mixture through the polymer membranes due to the differential partial pressures on both sides. During the separation of compressed air, impenetrable nitrogen passes along the entire length of the membrane module and enters the consumer, and oxygen, which has better permeability through the membrane, is discharged into the atmosphere as permeate. At the output, we get a gas mixture with a nitrogen content of up to 99.9%. The main components of the membrane generator are: membrane modules placed on a support frame-base together with auxiliary components (valves, regulators), respectively connected to each other. The generator is equipped with an automatic control system to control the parameters of the gas mixture separation process.