RU94044503A - Method of location of radio microphone and acoustic tube form acute-angle directivity diagram - Google Patents

Method of location of radio microphone and acoustic tube form acute-angle directivity diagram

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Publication number
RU94044503A
RU94044503A RU94044503/09A RU94044503A RU94044503A RU 94044503 A RU94044503 A RU 94044503A RU 94044503/09 A RU94044503/09 A RU 94044503/09A RU 94044503 A RU94044503 A RU 94044503A RU 94044503 A RU94044503 A RU 94044503A
Authority
RU
Russia
Prior art keywords
acoustic
acoustic signal
tube
radiation
location
Prior art date
Application number
RU94044503/09A
Other languages
Russian (ru)
Inventor
Ю.В. Кулагин
Original Assignee
Акционерное общество закрытого типа "ВЕСТА-С"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Акционерное общество закрытого типа "ВЕСТА-С" filed Critical Акционерное общество закрытого типа "ВЕСТА-С"
Priority to RU94044503/09A priority Critical patent/RU94044503A/en
Publication of RU94044503A publication Critical patent/RU94044503A/en

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  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

FIELD: measurement technology. SUBSTANCE: method of location of radio microphone and acoustic tube may be employed in measurement technology to detect unauthorized radio microphones connected to radio transmitter. Method is implemented by radiation of acoustic signal and reception of electromagnetic signal. Formed acute-angle directivity diagram has flat front, spatial scanning of acoustic signal is performed up to moment of reception of electromagnetic signal. Power of acoustic signal is sequentially decreased and direction of radiation of acoustic signal is changed before moment of reception of maximum electromagnetic signal. Location of radio microphone is found by direction of radiation of acoustic signal. Acoustic tube has tube and source of acoustic signal. Absorber of acoustic radiation is positioned by one end of tube. Length of tube from source of acoustic signal to its open end is chosen from expression 5d≅L≅24d, where d is diameter of tube, d d<λ, where l is length of wave of acoustic signal. Design of source of acoustic signals allows level of power of acoustic signal to be controlled. EFFECT: improved efficiency of method. 6 cl, 2 dwg

Claims (1)

Способ обнаружения местоположения радиомикрофона и акустическая труба могут быть использованы в измерительной технике для обнружения несанкционированного радиомикрофона, подключенного к радиопередатчику. Способ осуществляют излучением акустического сигнала (АС) и приемом электромаагнитного сигнала (ЭС). Формируют остронаправленную диаграмму АС с плоским фронтом, осуществляют пространственное сканирование АС до момента приема ЭС, последовательно уменьшают мощность АС и изменяют направление излучения АС до момента прием максимального ЭС. По направлению излучения АС определяют местоположение радиомикрофона. Акустическая труба содержит трубу и источник АС. Введен поглотитель АС, расположенный у одного конца трубы. Длина трубы от источника АС до ее открытого конца выбрана из выражения,указанного в описании. Источник АС выполнен с возможностью регулирования уровня мощности АС.A method for detecting the location of a radio microphone and an acoustic tube can be used in measurement technology to detect an unauthorized radio microphone connected to a radio transmitter. The method is carried out by emission of an acoustic signal (AS) and reception of an electromagnetic signal (ES). A sharply directed diagram of the speakers with a flat front is formed, spatial scanning of the speakers is carried out until the moment of receiving the ES, the power of the speakers is successively reduced and the direction of the radiation of the speakers is changed until the moment of receiving the maximum ES. In the direction of radiation of the speakers determine the location of the radio microphone. An acoustic pipe contains a pipe and a speaker source. An AC absorber located at one end of the pipe was introduced. The length of the pipe from the AC source to its open end is selected from the expression specified in the description. The speaker source is configured to control the speaker power level.
RU94044503/09A 1994-12-26 1994-12-26 Method of location of radio microphone and acoustic tube form acute-angle directivity diagram RU94044503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94044503/09A RU94044503A (en) 1994-12-26 1994-12-26 Method of location of radio microphone and acoustic tube form acute-angle directivity diagram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94044503/09A RU94044503A (en) 1994-12-26 1994-12-26 Method of location of radio microphone and acoustic tube form acute-angle directivity diagram

Publications (1)

Publication Number Publication Date
RU94044503A true RU94044503A (en) 1996-10-20

Family

ID=48450123

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94044503/09A RU94044503A (en) 1994-12-26 1994-12-26 Method of location of radio microphone and acoustic tube form acute-angle directivity diagram

Country Status (1)

Country Link
RU (1) RU94044503A (en)

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