SU802881A1

SU802881A1 - Acoustic ranger

Info

Publication number: SU802881A1
Application number: SU792731873A
Authority: SU
Inventors: Эдуард Васильевич Борисов
Original assignee: Военная Орденов Ленина,Октябрьскойреволюции И Суворова Академия Им.Дзержинского
Priority date: 1979-02-05
Filing date: 1979-02-05
Publication date: 1981-02-07

Description

Изобретение относится к измерительной технике и может быть использовано, в частности, для измерения расстояния до отражающего объекта.The invention relates to measuring technique and can be used, in particular, for measuring the distance to a reflecting object.

Известно устройство для определе- 5 ния положения объекта, содержащее генератор, излучатель, приемник,измеритель временных интервалов и регистратор £1].A device is known for determining the position of an object, comprising a generator, a radiator, a receiver, a time interval meter and a recorder £ 1].

Наиболее близким техническим решением к изобретению является акустический измеритель дальности, содержащий последовательно соединенные генератор сигналов, излучатель, первый измеритель временных интервалов й 15 приемник £2].The closest technical solution to the invention is an acoustic range meter containing a series-connected signal generator, emitter, a first time interval meter and 15 receiver [£ 2].

Недостатком известных устройств является малая точность измерения расстояния до объекта.A disadvantage of the known devices is the low accuracy of measuring the distance to the object.

Цель изобретения — повышение точ- 20 ности измерения расстояния до объекта. ¹ The purpose of the invention is to increase the accuracy of measuring the distance to the object. ^one

Это достигается тем, что в акустический измеритель дальности, содержащий последовательно соединенные ге- 25 нератор сигналов, излучатель, первый измеритель временных интервалов и приемник, введены последовательно соединенные второй измеритель временных интервалов, перемножитель и делитель, 30 а также датчик расстояния между излучателем и приемником, причем первый вход второго измерителя временных интервалов соединен с выходом излучателя, а второй вход — с выходом приемника, вход делителя соединен с выходом первого измерителя временных интервалов, а выход датчика расстояния между излучателем и приемником соединен с вторил входом перемножителя.This is achieved by the fact that a second time interval meter, a multiplier and a divider, 30 as well as a distance sensor between the emitter and receiver, are introduced in series into the acoustic range meter, which contains a series-connected signal generator, emitter, a first time interval meter and a receiver. moreover, the first input of the second meter of time intervals is connected to the output of the emitter, and the second input is connected to the output of the receiver, the input of the divider is connected to the output of the first meter of time intervals, and the output of the distance sensor between the emitter and the receiver is connected to the secondary input of the multiplier.

На чертеже представлена функциональная схема акустического измерителя дальности.The drawing shows a functional diagram of an acoustic range meter.

Акустический измеритель дальности содержит генератор сигналов 1, излучатель 2, первый измеритель 3 временных интервалов и приемник 4, а также последовательно соединенные второй измеритель 5 временных интервалов , перемножитель 6 и делитель 7, а также датчик 8 расстояния между излучателем и приемником.The acoustic range meter comprises a signal generator 1, emitter 2, a first time slot meter 3 and a receiver 4, as well as a second time slot meter 5, a multiplier 6 and a divider 7, and a distance sensor 8 between the transmitter and receiver in series.

Акустический измеритель дальности работает следующим об раз сел.The acoustic range meter operates as follows.

От генератора импульсов 1 вырабатываемые им импульсы подаются на вход излучателя 2, который заполняет их колебаниями звуковой частоты. Излучаемые импульсы поступают к отраженному объекту и, отражаясь, поступают на вход приемника 4 и оттуда на вход первого измерителя 3 временных интервалов. Одновременно с этим со второго выхода излучателя 2 сигнал поступает на второй вход первого измерителя 3 временных интервалов, который измеряет разность времени между моментом излучения импульса излучателем 2 и моментом прихода импульса,отраженного от объекта, на вход приемника 4, которую обозначим через At^. Перед началом измерения или периодически (по мере необходимости) излучатель 2 излучает импульсы в сторону приемника 4, расстояние между которыми равно ? . Второй измеритель 5 временных интервалов измеряет интервал времени между моментом излучения импульса излучателем 2 и приходом его на вход приемника 4, который обозначим через Atg , сигнал от.которого поступает на вход перемножителя 6, на второй вход которого поступает сигнал от датчика 8 расстояния между излучателем и приемником. В результате перемножения получается величина At^xB, которая в виде сигнала поступает на вход делителя 7, на второй вход которого поступает сигнал от измерителя 3.From the pulse generator 1, the pulses generated by it are fed to the input of the emitter 2, which fills them with vibrations of the sound frequency. The emitted pulses arrive at the reflected object and, reflected, arrive at the input of the receiver 4 and from there to the input of the first meter 3 time intervals. At the same time, from the second output of the emitter 2, the signal enters the second input of the first time meter 3, which measures the time difference between the moment of emission of the pulse by the emitter 2 and the moment of arrival of the pulse reflected from the object to the input of the receiver 4, which we denote by At ^. Before starting the measurement or periodically (as necessary) the emitter 2 emits pulses in the direction of the receiver 4, the distance between which is equal to? . The second time interval meter 5 measures the time interval between the moment of emission of the pulse by the emitter 2 and its arrival at the input of the receiver 4, which we denote by Atg, the signal from which is fed to the input of the multiplier 6, to the second input of which the signal from the sensor 8 of the distance between the emitter and the receiver. As a result of multiplication, the quantity At ^ xB is obtained, which in the form of a signal is fed to the input of the divider 7, the second input of which receives the signal from the meter 3.

В результате деления получается искомая величинаAs a result of division, the desired value is obtained

L ^жA( В) / A tg .L ^W A (B) / A tg.

Изобретение позволяет повысить точность измерения дальности, поскольку при измерении -учитывается скорость распространения звука в воде, которая подвержена сильным изменениям.The invention improves the accuracy of measuring ranges, because when measuring takes into account the speed of propagation of sound in water, which is subject to strong changes.

Claims

The invention relates to a measuring technique and can be used i in particular for measuring the distance to a reflecting object. A device is known for determining the position of an object, the generators, the radiator, the receiver, the time interval meter and the recorder 1. The closest technical solution to the invention is an acoustic distance meter containing a series-connected signal generator, an emitter, the first time interval meter receiver . A disadvantage of the known devices is the low accuracy of measuring the distance to the object. The purpose of the invention is to improve the accuracy of measuring the distance to an object. This is achieved by introducing a serially connected second time interval meter, a multiplier and a divider, as well as a distance sensor between the radiator and the receiver, into the acoustic range meter containing the serially connected signal generator, emitter, first time interval meter and receiver. the first input of the second time interval meter is connected to the output of the radiator, and the second input is connected to the receiver output, the divider input is connected to the output of the first time meter intervals, and the sensor output between the transmitter and receiver is connected to the second input multiplier. The drawing shows a functional diagram of the acoustic meter range. The acoustic range meter contains a signal generator 1, an emitter 2, a first meter of 3 time intervals and a receiver 4, as well as a second meter of 5 time intervals connected in series, a multiplier 6 and a divider 7, as well as a sensor 8 between the transmitter and receiver. Acoustic range meter works as follows. From the pulse generator 1, the pulses generated by it are fed to the input of the radiator 2, which fills them with audio frequency oscillations. The emitted pulses are transmitted to the reflected object and, by reflection, are fed to the input of the receiver 4 and from there to the input of the first meter 3 time intervals. Simultaneously, from the second output of the radiator 2, the signal arrives at the second input of the first meter of 3 time intervals, which measures the time difference between the moment of radiation of the pulse by the radiator 2 and the moment of arrival of the pulse reflected from the object to the input of receiver 4, which we denote by At. Before starting the measurement or periodically (as required), the emitter 2 emits pulses in the direction of the receiver 4, the distance between which is equal. The second meter 5 time intervals measures the time interval between the moment of radiation of a pulse by the radiator 2 and its arrival at the input of receiver 4, which we denote by Atg, the signal from which is fed to the input of the multiplier 6, to the second input of which a signal comes from the distance sensor 8 emitter and receiver. As a result of multiplication, a value is obtained, which in the form of a signal is fed to the input of a divider 7, to the second input of which a signal from meter 3 is received. e) / Atg. The invention makes it possible to increase the accuracy of the measurement of distance, because of the measurement, the speed of sound in the water, which is subject to strong changes, is taken into account. Formula of the invention The acoustic range meter containing a series-connected signal generator, a radiator, a first time interval meter and a receiver differing from that, in order to improve the accuracy of measuring the distance to an object, it is entered into it sequentially. the second time interval meter, multiplier and divider, as well as the distance sensor between the emitter and receiver, the first input of the second time interval meter connected to the output of the radiator, and the second input to the receiver output, the divider input connected to the output of the first time interval meter and the sensor output between the transmitter and receiver is connected to the second input of the multiplier. Sources of information taken into account in the examination 1. The author's certificate of the USSR 116760, cl. G 01 S 7/52, 02.06.78.

2.Agaykin DI and others. Sensors of control and regulation. M., Mechanical Engineering, 1965, p. 248-249 (prototype).

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