RU170266U1 - Device for research and control of characteristics of anechoic, reverberation and shielded cameras - Google Patents

Abstract

A device for the study and control of the characteristics of anechoic, reverberation and shielded cameras provides improved accuracy and quality of the study. The device includes computer means on which the information environment operating under the control of the processor is recorded, and which includes components — mathematical models and components — constructors, as well as means for connecting a signal generator, radiating antenna, and a spectrum analyzer of at least one receiving measuring antenna. 2 s.p. f-ly.

Description

The proposed technical solution relates to the field of computer technology.

As analogues of a technical solution, RU 69812, RU 77689, RU 78338 can be considered.

The proposed device represents the improvement of analogues in order to improve the accuracy and quality control characteristics of anechoic, reverb and shielded cameras.

The proposed device for studying and monitoring the characteristics of anechoic, reverberation and shielded chambers is used in the design of acoustic and electromagnetic anechoic chambers used in testing various equipment - primarily radio engineering (it is also possible to study the acoustic characteristics of engines, superchargers, and other mechanical engineering products).

The device (set of equipment) is a computer / computers electrically and informationally interconnected (as part of an automated workstation, meet GOST RV 8.570-98), connected to

spectrum analyzer

signal generator

2 sets of antennas (3-4 pcs. 9 kHz - 18 GHz to 40 GHz), one of which is used as a radiating antenna, and the second as a measuring one.

Additionally, laser roulette is used.

The above-mentioned computer tools (desktop computers, tablets, laptops, smartphones, etc.) for studying anechoic, reverberation, and shielded cameras include computer-readable media (a set of computer-readable media) on which processor-controlled software (information medium) is written for designing the geometry, characteristics of anechoic, reverberation and shielded cameras used for antenna measurements and electromagnetic compatibility tests (EMC) in accordance with the requirements of GOST R (for example, a shielded room according to GOST R 5044 14 - 94) and international standards (CISPR, DO, MIL STD, MIL-STL-461E), controlled by the processor.

When testing an anechoic chamber, a spectrum analyzer and a receiving antenna are placed inside the chamber with the door open to check the external interference level. Further measurements are taken with the door closed to verify the effectiveness of the camera shielding. The signal generator and radiating antennas are installed outside the cameras to form external signals from which the camera shields.

The software (information environment) provides a sequence of physical actions with anechoic chamber equipment based on:

- a mathematical model for calculating the characteristics of chambers and radar absorbing microwave material, verifying the compliance of the obtained camera configuration with the requirements of standards (Russian and foreign), presented to testing laboratories for EMC tests and antenna measurements, physical models of radio wave propagation;

- 3D camera designer that allows you to simulate the size, configuration of cameras (L × W × H, installation locations of shielded doors, slewing rings, vestibules, panels with microwave filters, shielded ventilation grilles and places for connecting external communications (ground bus, supply / exhaust ventilation, tambours of cleanliness class ISO standard, etc.);

- 2D camera designer for automatically generating design documentation for the developed camera model.

In practice use

spectrum analyzers of the Keysight, Rohde & Schwarz, Anritsu brands with a frequency range from 9 kHz to 18 (40) GHz;

Keysight, Rohde & Schwarz, Anritsu, Tektronix signal generators from 8 MHz to 18 (40) GHz;

Schwarzbeck Antenna Kit from 9 kHz to 18 (40) GHz.

The selected set of equipment described above ensures the achievement of the technical task - by selecting a set of equipment that will allow for comprehensive monitoring of the characteristics (verification) of anechoic, reverb and shielded cameras.

The proposed device can be used as part of a measuring and diagnostic laboratory to check anechoic parameters and screening test chambers for antenna measurements and electromagnetic compatibility tests of navigation equipment and radio transmission communication equipment. For example, as a device for the maintenance of radio stations of the P-168E family ("Aqueduct"). In this case, the complex of equipment of the mobile laboratory will be a superstructure of a vehicle - a cross-country vehicle.

The device may be a part of a network of laboratories interconnected with each other and / or a central station (headquarters) via wireless communication channels. The optimal number of units of measuring devices is three per geographically isolated region (territorial and economic complex, military district, fleet, etc.)

Claims (15)

1. Device for research and control of characteristics, containing at least one computer means, means for connecting antennas, characterized in that a) on at least one machine-readable medium of said computer means, an information environment operating under processor control is recorded, and including a ₁ ) component - a mathematical model for calculating the characteristics of the studied chamber, a ₂ ) component - a mathematical model for calculating the characteristics of a radio-absorbing microwave material, a ₃ ) component - a mathematical model for verifying the conformity of the obtained camera configuration to the requirements of the standards required for testing laboratories for electromagnetic compatibility tests and antenna measurements selected from the list including at least GOST R 5044 14-94, CISPR, DO standards, MIL STD, MIL-STL-461E, a ₄ ) component - a mathematical model for verifying the correspondence of the obtained camera configuration to physical radio wave propagation models, a ₅ ) component - a three-dimensional constructor that provides modeling of the size and configuration of cameras, including dimensions - length - width - height, installation locations of shielded doors, slewing rings, vestibules, panels with microwave filters, shielded ventilation grilles and external communications - at least a grounding bus, supply and exhaust ventilation, tambours of cleanliness class meeting the specified ISO standard, a ₆ ) component - a two-dimensional constructor that automatically generates design documentation for the developed camera model, however, the device also contains b) means of connecting to said computer means, b ₁ ) a signal generator, b ₂ ) at least one radiating antenna, b ₃ ) spectrum analyzer, b ₄ ) at least one receiving measuring antenna. 2. The device according to p. 1, characterized in that the said computer tool is selected from the list including at least a desktop computer, tablet, laptop, smartphone. 3. The device according to p. 1, characterized in that the said computer tool is part of a workstation that meets the requirements of GOSTRV 8.570-98.