SU616583A1 - Echo-location device - Google Patents

Description

one

The invention relates to ultra-eukenvic technology and can be used in flaw detectors and test-measuring echolocation devices.

Known ultrasonic device containing the UL transducer. oscillations, scanning drive, electronic signal processing unit and indicator.

The disadvantage of it is the low response time of signal acquisition.

The closest to the technical essence of the invention is an echo-locating device comprising a serially connected linear array of electroacoustic transducers, a receiving and transmitting unit, a coding unit and a three-color cathode-ray tube, the synchronizer output of which is connected to the input of the receiving and transmitting unit, frame and line sweep generators, the inputs of which are connected to two outputs of the synchronizer and the inputs to the inputs of the cathode ray tube (2j.

Its disadvantage is the low speed of registration of information and the impossibility of its repeated use.

The aim of the invention is to ensure the speed of registration of information and the possibility of its multiple use.

This is achieved by the fact that the device is equipped with series-connected horizontal signal shaper, the input of which is connected to the second output of the synchronizer, an adder, the second input of which is connected to the output of the receiving and transmitting unit, a VCR, a switch and a selector, the two outputs of which are connected and line scan, and the third output is connected to the input of the coding unit, and the driver of personnel signals connected between the third output of the synchronizer and the third input of the adder.

The drawing shows a block diagram of the described device.

Claims (2)

The device contains a series-connected linear array 1 of electroacoustic transducers, a receiving and transmitting unit 2, an adder 3, a VCR 4, a switch 5, a selector 6, a coding unit 7, and a cathode-ray tube 8. 8 To the input of block 2 a synchronizer output 9 is connected. synchronizer and the inputs of the adder included shaper 10 small signals and shaper 11 personnel signals. The synchronizer outputs are also connected via a switch 5, a 12-frame scanning generator and a horizontal scanning generator 13, the outputs of which are connected to the inputs of the electron-beam tube. Two outputs of the selector 6 are connected via switch 5 to the inputs of frame and line sweep generators. The device works as follows. Ultrasonic pulses are emitted and received by the grid of 1 electroacoustic transducers at an angle determined by the operation of the receiving and transmitting unit. 2.. From the output of the block, the video signals are fed to the input of the adder 3 and through the contacts of the switch 5 to the input of the coding unit 7 in which the encoded video signals are fed to a three-color cathode-ray tube 8. The signals of the synchronizer 9 set the rhythm of the receiving and transmitting unit 2 and at the same time, through the switch, respectively, enter the inputs of the generators 12,13 of the frame and line sweep and synchronize their operation so that the position of the beam on the screen of the cathode ray tube 8 corresponds to the position of the probe of the ultrasonic beam pulses into the test space field of view simultaneously on separate inputs of the adder 3 is supplied video signals output from the receiving-transmitting unit 2, the pulses output from the signal shaper 10 and human pulses from the former 11 The signals lowercase. The drivers 10 and 11 are triggered by pulses of the synchronizer 9. Thus, at the output of the adder 3, a signal is received consisting of a video signal, as well as frame and line signals. This entire signal is recorded on a video tape of a video tape recorder 4. Recorded information is reproduced in the form of a full video signal and output from VCR 4 through switch 5 is fed to the input from lecturer 6. From the selector output, video pulses reflecting the echolocation recorded on the magnetic tape to the input of coding unit 7 Here they are encoded by the amplitude levels, are distributed over the channels of three, primary colors and fed to the cathodes of the cathode ray tube to modulate the brightness of the illumination of the rays. 3 Simultaneously, the horizontal and vertical video pulses, separated from the full video signal, from the outputs of the selector 6 through the switch 5 are fed to the inputs of the generators 12 and 13 of the vertical and vertical scanning voltages and synchronize their operation. In this case, the circuits of the switch 5 are broken and the synchronizer does not affect the operation of the sweep generators. A two-dimensional echogram is reproduced on the screen of the cathode-ray tube, which reflects the echo information recorded on the tape of the video recorder. Depending on the mode of operation of the VCR, the entire dynamic process or any frame of this process is played. The described echolocation device allows to increase the speed of recording information, to ensure the recording and storage of a large amount of information of dynamic processes for subsequent processing. Echo-location device containing a series-connected linear array of electroacoustic transducers, a receiving and transmitting unit, a coding unit and a three-color cathode ray tube, a synchronizer whose output is connected to the input of the receiving and transmitting unit, frame and line scan generators, inputs which are connected to two outputs of the synchronizer SI1 and outputs to the inputs of the cathode ray tube, characterized in that, in order to ensure the speed of recording information and Possibilities of MHoroicpai ioro its use, it is equipped with series-connected shaper of horizontal signals, the input of which is connected to the second output of the synchronizer,. sum., the second input of which is connected to the output of the receiving-transmitting unit, a video recorder, a switch and a selector, two outputs of which are connected through a switch to the inputs of frame and line sweep generators, and the third output is connected to the input of the coding block, and the driver of personnel signals connected between the third output of the synchronizer and the third input of the adder. Sources of information taken into account in the examination: 1. Abstracts of 1 scientific and technical conference Ultrasound in physiology and medicine, Rostov-on-Don, v. 2, pp.202-203. 2.retbot sonics 1975, 5, p. 219224.