RU86759U1 - ACOUSTIC RANGE DETERMINATION DEVICE - Google Patents

Abstract

An acoustic ranging device comprising an acoustic range finder mounted on the outside of the pipe, consisting of a first transceiving acoustic sensor connected to the recorder, and an active response generating device with its transceiving sensor is installed at the object moving inside the pipe, characterized in that the acoustic range finder further comprises series-connected temperature sensor, amplifier, analog-to-digital converter and propagation speed calculation unit The effects of ultrasound that is connected to the recorder.

Description

The utility model relates to the field of sound ranging and acoustic control and can be used to measure distances to objects moving in the in-tube space.

Known devices for acoustic ranging according to the method of unidirectional measurement (A. Gorbatov, G. E. Rudashevsky. Acoustic methods for measuring distances and control. - M.: Energoizdat, 1981. - P. 19-20, Fig. 1-7, Fig. 1-8) containing an emitter of ultrasonic vibrations, a receiver of ultrasonic vibrations, a recorder that provides measurement of the distance to the object by the time of passage of ultrasonic vibrations from the emitter to the receiver.

A device for acoustic ranging is known (RF patent No. 71450, IPC (2006.01), G01S 15/08, published 2008.03.10), selected as a prototype, comprising an acoustic range finder with a receiving-emitting acoustic sensor mounted on the outside of the pipe, and an object moving inside the pipe has an active response generating device comprising a threshold regulator to which a comparator, generator and emitter are connected in series, while the receiver is connected to the comparator

Known devices have a high error in measuring distances, due to the dependence of the speed of propagation of ultrasonic vibrations on temperature.

The disadvantages of the known devices is the low accuracy of measuring the distance to the in-pipe object.

The utility model solves the problem of creating an acoustic ranging device that allows to reduce the error in measuring the distance to objects moving in the tube spaces.

The problem is solved due to the fact that the acoustic ranging device, as in the prototype, contains an acoustic range finder with a first receiving-emitting acoustic sensor connected to the recorder, installed on the outside of the pipe, and an active generation device is installed on the object moved inside the pipe response, with its transceiver sensor.

According to a utility model, it further comprises a series-connected temperature sensor, an amplifier, an analog-to-digital converter, and an ultrasound propagation velocity calculation unit that is connected to the recorder.

By using a temperature sensor, an amplifier, an analog-to-digital converter, and an ultrasound propagation velocity calculation unit in series, the error in determining the distance to an object moving in the in-tube space is reduced.

Figure 1 presents the functional diagram of the device acoustic ranging.

The acoustic ranging device (Fig. 1) comprises an acoustic range finder 1, consisting of a recorder 2, connected to a first transceiving acoustic sensor 3 and connected in series to a temperature sensor 4, an amplifier 5, an analog-to-digital converter 6, and a speed calculation unit 7 connected to the recorder 2 An active response generating device 8 connected to the second acoustic transceiver sensor 9. An active response generating device 8 is installed inside the pipe 10 on the in-tube object 11.

Registrar 2, acoustic transceiving sensors 3 and 9, an active response generating device 8 can be performed in accordance with utility model patent No. 71450.

The temperature sensor 4 is standard, for example LM19, the amplifier 5 is made on an operational amplifier with a low bias voltage, for example K140UD17, the analog-to-digital converter 6 can be performed on a chip K1113PV1, the unit for calculating the propagation speed of ultrasound 7 can be performed on any microprocessor, for example K1816BE51.

As an in-line object 11, a device for cleaning oil pipelines or an in-line sealant can be used.

The temperature sensor 4 registers the temperature of the medium in which the ultrasound propagates, the signal from the output of the sensor 4 is amplified by an amplifier 5 and fed to an analog-to-digital converter 6, from the output of which the signal is sent to the ultrasonic propagation speed calculation unit 7. The speed information is sent to the range finder recorder 2 1. The registrar 2 with a receiving-emitting acoustic sensor 3 feeds a probing ultrasonic signal to the in-tube object 11, moved inside the pipe 10, receiving a response ultra an acoustic signal from the active response generating device 8 with its receiving-emitting sensor 9 located on the in-tube object 11, fixing the propagation time of the acoustic signal to the in-tube object 11 and vice versa and determining the distance to the in-tube object 11 by multiplying the propagation time of the acoustic signal to the in-tube object 11 and vice versa on the speed of propagation of ultrasound.

Claims (1)

An acoustic ranging device comprising an acoustic range finder mounted on the outside of the pipe, consisting of a first transceiving acoustic sensor connected to the recorder, and an active response generating device with its transceiving sensor is installed at the object moving inside the pipe, characterized in that the acoustic range finder further comprises series-connected temperature sensor, amplifier, analog-to-digital converter and propagation speed calculation unit The effects of ultrasound that is connected to the recorder.