SU1200396A1 - Device for calibrating fish-search equipment by depth - Google Patents

Description

The invention relates to electrical engineering and can be used to create devices for calibration of sonar equipment.

The aim of the invention is to improve the accuracy of measurements.

, Ya ·· the drawing shows the structural diagram of the proposed scheme.

’Ί / device. one

ί "The device contains a generator

ΐ (1 trigger, block 2 of contact trigger, oscillographic indicator 3, generator 4 of delay time, genetics | rator 5 reference time, element OR 6, drive 7 pulses, shaper 8 radio pulses, generator 9 periodic oscillations, input terminals 10 and And and output terminals 12 and 13. Start generator 1 is a source of pulse signals, operates in self-excitation mode and consists of a master oscillator and clock pulse output devices. Block 2 of the contact trigger converts the pulses of the start generator 1 into a mechanical e circuit

• relay contacts. Generator 4 smooth delay allows you to delay the beginning of the formation of the sending of pulses at the time of inclusion of the checked fish-searching device and contains a single vibrator with adjustable pulse duration and the formation of delayed pulses, triggered by the decline of the single vibrator pulse. The generator 5 of the reference time consists of a crystal oscillator and a frequency divider with a variable division factor, which forms calibrated time intervals that are multiples of the specified depths between the pulses. The drive 7 pulses is a summing binary counter and is designed to generate a specified number of pulses in the dressing. Shaper 8 radio pulses 8 converts a periodic signal and a video pulse sequence into a sequence of radio pulses, time-calibrated. The generator 1 start through the terminal 12 is connected to the synchronization input of the fish finder being tested. The second output of the generator 1 start connected to the input of the generator 4 smooth delay. The third output of the generator 1 start associated with

the inputs of the contact start block 2 and the oscillograph indicator 3 synchronization. The output of the smooth delay generator 4 is connected to the first input of the OR 6 element, to the second input of which through the terminal 10 an external trigger pulse from the fish finder to be tested can be applied. The output of the element OR 6 in addition to the shaper 8 radio pulses connected to the second input of the generator 5 of the reference time, to the first input of which is connected the output of the drive 7. The output of the generator 5 of the reference time is connected with the inputs of the drive 7 of pulses and the shaper 8 of the radio pulses to the second input of which is connected to the output of the generator 9 periodic fluctuations. The shaper 8 radio pulses through terminal 13 is connected to the input of the fish finder being tested, the output of which is connected via terminal 11 to the input of the oscillographic indicator, ί The device operates as follows.

The triggering pulse from the start-up generator 1 is fed to the input of the checked hydroacoustic instrument through terminal 12 and at the same time,

on generator 4 smooth delay, block 2 contact start and oscillograph synchronization input

35 of the indicator 3. It is possible to start the device with an external pulse from the tested equipment through the input terminal 10 to the element OR 6. Generator 4: smooth delay allows you to delay the beginning of the formation of the first pulse while the sonar equipment is on. The pulse from the output of the generator 4 smooth delay through the element OR 6 is fed to

45 input shaper 8 radio pulses and the input of the generator 5 of the reference time, translating the generator 5 into a self-oscillating mode with a reference repetition period of pulses. From the output of the generator 50 of the reference time, a sequence of pulses with a specified period of duration arrives at the input of the shaper 8 radio pulses And simultaneously to the input of the drive 7

55 pulses, when it is filled, a pulse appears at its output, which arrives at the second input of the generator 5 of the reference time, blocks it, pe200396

putting in standby mode. When applying to the input of block 8 a signal from the generator 9 of periodic oscillations, a sequence of radio pulses appears at its output, the repetition period of which is determined by the generator 5 of the reference time, and the number of pulses in the package is determined by the capacity of the drive 7.

The resulting radio pulse sequence is fed to. input checked sonar device. The duration of the time interval between radio pulses corresponds to a certain depth and is set depending on the depth range to be tested. Measurement of the depth and duration of the ACS of the hydroacoustic equipment is carried out on 1

oscillographic indicator, radio pulses.

A device for calibrating registering fish-based instruments

5 depth can be used to measure and adjust according to a predetermined law VARU hydroacoustic devices. A properly tuned VARU scheme significantly reduces the space of the 10 'xi and makes it possible to estimate the magnitude of the registered objects, for example, clusters of fish at various distances from the vessel.

Application invention, allows

15 improve the accuracy of the results

when measuring the depth and duration of VARU, reduce the time for setting up and checking the sonar equipment.

Claims (1)

THE DEVICE FOR CALIBRATION OF RECORDING FISHERY FISHING APPLIANCES BY DEPTH at av.st. Ν * 785972, characterized in that, in order to improve the measurement accuracy, a pulse drive is inserted into it, the output of which is connected to one input of the reference time generator, another input of which is connected to the output of the OR element, and the output of the reference time generator is connected to the input of the pulse storage and the third input of the radio pulse shaper. 3 <1200396