SU1456863A1 - Device for checking quality of ferromagnetic parts - Google Patents

Abstract

A device for controlling the quality of parts made of ferromagnetic materials is related to equipment for flaw detection. The aim of the invention is to control the quality of parts in cases where there is no unambiguous relationship between the property of the material and the EMF of the harmonics, by using the oscillation phenomenon of the spectral envelope of the EMF of the harmonics and reducing the setup time of the device by simulating the information signal about the defect with a high-frequency generator 29 The device differs from the known presence of a comparator 9, a control unit 19, two circuits And 10 and 22, four keys 11, 14, 17 and 20, indicators 12, 15, 18, 21, 23, triggers 13 and 16, meter 24 for example and switches 25, 26, 30, 31, buttons 27, 28, the high frequency generator 29 and the blocks 7 and 8, the sorting installation boundaries. Selective amplifiers 3 and 4 separate the two harmonics of the information signal received from magnetization unit 2 powered by generator 1. Blocks 7 and 8. The settings of the sorting boundaries compare the amplitudes of the harmonics with the limits established by the tolerance of the harmonics EMF, while maintaining their equality, that for a given intensity of the magnetic field corresponds to the permissible values of the monitored parameter. 3 hp f-ly, 5 ill. 1C (L 4ife sd a 00 & 0 / (mvlanaznu 71 copmupoSMt

Description

The invention relates to instruments for non-destructive testing and can be used to control the quality of heat treatment, hardness, mechanical properties of materials and sorting of alloys by brand.

The purpose of the invention is to increase the reliability of control due to the possibility of controlling the quality of parts in cases where there is no clear relationship between the controlled properties of their material and the electromotive force of harmonics, which is achieved by using the oscillation phenomenon of the spectrum envelope of the electromotive force of harmonics, imitation of the information signal about the defect by a high-frequency generator with an adjustable output without the use of reference samples.

Fig, 1 shows a functional diagram of the device for quality control of parts; Fig. 2 is a functional block diagram of the control unit; FIG. 3 is a timing diagram of control signals; figure 4 is a functional diagram of the block set sorting; FIG. 3 is a functional detector circuit.

The device contains connected. successively generator 1 and magnetization unit 2, first 3 and second A selective amplifiers, whose inputs are connected to the output of magnetization unit 2, the first 5 and second 6 detectors, the first 7 and second 8 sets of setting the boundaries, the first input of each of which is connected with the output of the first 5 and second 6 detectors, respectively, connected in series by the first comparator 9, whose input is connected to the output of the magnetization unit 2, the first AND 10 circuit, the first key 11 and the first display 12.

The device also contains a first trigger 13 connected in series, the first input of which is connected to the output of the first sorting boundary setting unit 7, the second key 14 and the second indicator 15 are connected in series to the second trigger 16, the first input of which is connected to the output of the second mounting unit 8 the sorting limits, the third key 17 and the third indicator 18, the control unit 19, the input of which is connected to the second input of the generator 1, and five outputs are connected respectively to the first inputs of the first 5 and second 6 detectors, to the second inputs the first 5 and 6 second detectors, with the second input of the first circuit AND 10, with the second inputs of the first 7 and second 8 blocks of setting the boundaries of the sorting and with the second inputs of the first 13 and second 16 triggers, connected in series the fourth key 20 and the fourth indicator 21, the second circuit And 22, the two inputs of which are connected to the outputs of the first 13 and second 16 flip-flops, respectively, and the output to the control inputs of the first-fourth keys 11, 14, 17 and 20, the differential indicator 23, whose two inputs are connected to the outputs of the first 5 and 6 second detector, voltage meter 24, the first switch 25, the common output of which is connected to the information input of the voltage meter 24, the first and second switched leads are connected to the outputs of the first 5 and second 6 detectors, respectively, and the second switch 26, the common output of which is connected to The input of the voltage meter 24, the first switched output is for connecting a constant voltage source, and the second pin is connected to the output of the fourth switch 20.

The device contains the first and second normally open buttons 27 and 28, the first output of each of which is connected to the inputs of the first 7 and second 8 sets of the boundaries of the sorting, respectively, and the second is intended to be connected to a constant voltage source, and the high-frequency generator 29 which is connected to the fourth inputs of the first 7 and second 8 units of setting the boundaries of the sort. The third inputs of the first 5 and second 6 detectors are connected to the outputs of the first 3 and second 4 selective amplifiers, respectively, via the third 30 and fourth 31 switches. The common terminals of the third 30 and fourth 31 switches are connected to the third inputs of the first 5 and second 6 detectors, respectively.

The first switched outputs of the third 30 and fourth 31 switch 14

The leu are connected to the second (regulated) output of the high-frequency generator 29, the second switched outputs to the outputs of the first 3 and second 4 selective amplifiers, respectively.

The control unit 19 (Fig. 2) is expelled in the form of a second x 1 parator 32 connected in series, the input of which is the input of the control unit 19, and the output is the fourth output of the control unit 19, and the AND-NE circuit 33, the third output an output of a control unit 19 connected in series to a differentiator 34, the input of which is connected to the output of a second comparator 3Z, the first diode 35, the cathode of which is connected to the output of a differentiator 34, an HE circuit 36, an OR circuit 37, the output of which is the fifth output of a block 19 govt The vibrator 38, the output of which is the second output of the control unit 19, is connected to the second input of the NAND circuit 33, the second diode 39, the anode of which is connected to the output of the differentiator 34, and the cathode to the second input of the OR circuit 37 whose input is connected to the output of the OR circuit 37, and the output is the first output of the control unit 19.

The first 7 and second "sorting boundaries" blocks are each made in the form of a third trigger 41 connected in series, the first input of which is the third input of each of the blocks 7 and 8 of setting the sorting boundary, the fifth key 42, the second input of which is the second input of each of blocks 7

The first 5 and second 6 detectors are each made of a sixth key 46 connected in series, the first and second inputs of which are connected respectively to G by the output of the first (or respectively second) selective amplifier 3 (4) and the first output of control unit 19, the peak detector 47, the second input which is connected to the first output of the control unit 19, and the seventh key 48, the second input of which is connected to the second output of the control unit 19, and the output is the output of each of the detectors 5 and 6.

The device works as follows.

The controlled part is placed in the magnetization unit 2. As the main information characterizing the quality, the equality of the amplitudes of the two higher harmonics taken from the emf spectrum is assumed.

controlled object. By the deviation of the EMF of the harmonics from the level at which the equality of their amplitudes is observed, the quality of the control objects is judged. The equality of the amplitudes of the harmonics for some values of the external intensity of an alternating magnetic field is observed due to the appearance of an oscillation of the envelope of the EMF spectrum of controlled ferromagnetic objects.

The current that generates an alternating magnetic field is fed to the magnetizing winding from the first (regulated) output of the low-frequency generator 1. The signal induced in the measuring winding of the magnetization unit 2 is fed to the inputs of the first 3 and second 4 electoral amplifiers that output from the EMF spectrum

and 8 set the boundaries of the sorting, the harmonics, the amplitudes of the circuit And 43, the second input of which is the fourth input of each of the blocks 7 and 8 of the setting of the boundary of the sorting, digital-analogue converter 44, the second input of which gQ is connected to the first input of the third trigger 41, and the third comparator 45, the second input of which is the first input of each of the blocks 7 and 8 for setting the boundaries of sorting, and the output gg stroke is connected to the second input of the third trigger 41 and is the output of each of the blocks 7 and 8 for setting the boundaries of sorting .

for parts with permissible values of the parameter being monitored due to the appearance of oscillation, they take on the same values for certain values of the intensity of the alternating magnetic field. The selection of information frequencies (harmonics) and field strength values is made at the stage of testing the control technique on specially manufactured model parts that have been heat treated at different temperatures. These harmonics are through the closed contacts of the third 30 and fourth 31 switches

harmonics, the amplitudes of which are

for parts with permissible values of the parameter being monitored due to the appearance of oscillation, they take on the same values for certain values of the intensity of the alternating magnetic field. The selection of information frequencies (harmonics) and field strength values is carried out at the stage of testing the control procedure on specially manufactured model parts that have been heat-treated at different temperatures. These harmonics through the closed contacts of the third 30 and fourth 31 switches

served to the first inputs of the first 5 second 6 detectors.

From the outputs of the first 5 and second 6 detectors, DC signals equal to the amplitudes of the harmonics that are provided are fed to the inputs of the differential (differential) indicator 23, the first 7 and the second 8 blocks for setting the sorting boundaries, and through the first switch 25 to the input of the meter 24 the fourth inputs of blocks 7 and 8 for setting the boundaries of the sorting are fed to the signals from the unregulated output of the high-frequency oscillator 29. Right-angle pulses formed from positive half waves are supplied to their second inputs from the control unit 19 generator 1.

From the outputs of the first 7 and second 8 units for setting the boundaries of the sorting, the pulses produced by them are fed to the first (informational) inputs of the first 13 and second 16 flip-flops, to the second inputs of which clock pulses are sent from the fifth output of the control unit 19. From the outputs of the flip-flops 13 and 16, pulses are applied to the first and second inputs of the second circuit AND 22 and the second 14 and third 17 normally open analog switches, respectively. From the outputs of the second circuit AND 22, pulses are fed to the control inputs of the first 11, second 14 and third 17 keys and to the input of the fourth normally closed analog key 20. From the output of the fourth key 20, the signal is fed to the input of the fourth indicator 21 (light, sound) The norm and the switching circuit of the input of the meter 24 voltage through the closed contact of the second bipolar switch 26. From the outputs of the normal © t-closed second 14 and third 17 keys, the signal goes to the inputs of the second 15 and third 18, respectively, Higher than normal and Lower n ohms From the output of the first key 11, the signal goes to the first indicator 12 Scrap and to the input of a third-party sorting mechanism.

The operation of the first 5 and second 6 detectors, the first 7 and second 8 blocks of setting the sorting boundaries, the first And 10 and the first 13 and second 16 triggers is controlled from the control unit 19

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harmonic oscillations to the input of which come from the unregulated output of the low-frequency generator 1

The input of the second comparator 32 (Fig. 2) receives impulses from an unregulated output of the low-frequency generator 1. Of the positive half-waves and r (Fig. 3), the comparator generates rectangular pulses U equal in duration to the inputs of the differentiator 34, the first input AND-NOT circuits 33 and third inputs of the first 7 and second 8 devices for setting the boundaries of the sort. From the output of the differentiator 34, short alternating pulses Ua are removed, corresponding to the leading and trailing edges of the rectangular pulses U |. Further, negative pulses pass through diode 35 and are inverted by the HE 36 circuit. As a result, short positive pulses are applied to the inputs of the OR 37 circuit, corresponding to the front and rear edges of the U pulses. From the OR 37 circuit's output, U (clock) pulses are fed to the second inputs the first 13 and second 16 trigger 15, the inputs of the first 38 and second 40 waiting multivibrators.

The multivibrator 40 produces short square-wave pulses U, designed to bring the first 5 and second 6 detectors into their initial (zero) state. Voltage U | is supplied (Fig. 3) to the normally open sixth switch 46 and peak detector 47 (Fig. 5). The first

standby multivibrator 38 output-. A wider UIVM rectangular pulse is designed to control the process of recording the amplitudes of the harmonics arriving at the inputs of the first 5 and second 6 detectors. Voltage and | ,; is supplied to the control input of the normally open seventh key 48. At the same time, the voltage and, is fed to the second input of the AND-HE circuit 33. As a result of supplying the inputs of the AND-HE circuit 33 pulses U to the second comparator 32 and the first waiting multivibrator 38 at the output an impulse Up is formed, the duration of which is equal to the difference of the durations of the pulses and and and. This pulse is applied to the second input of the first circuit AND 10. Thus, the control unit 19 provides the process

Sy n zeroing, recording and storing information on the first 5 and second 6 detectors, controlling the first And 10 circuit, and also resetting the first 13 and second 16 triggers to the initial state for each half-period of the oscillator frequency 1.

At the moment when the control unit 19 arrives at the second input of the detectors 5 and 6 (Fig. 1) of the UMI pulse, the normally open sixth key 46 is closed, preventing the input of the peak detector 47 of the signals from the selective amplifiers 3 and 4, and. a normally-closed key is opened, connected in parallel with the capacitor (included in peak detector 47). During the duration of the action of the id4 pulse, the voltage at the peak detector 47 is reduced to zero. After the termination of the Id pulse, the capacitor in the peak detector is charged to the maximum amplitude of the half-wave of the recorded harmonic. The normally open seventh key 48 is in the closed state under the action of the pulse U, i.e. when the information is zeroed and recorded. This eliminates the input to the subsequent signal circuits when describing and recording information. Upon termination of the pulse, the peak detector 47 stores a constant voltage equal to the maximum value of the signal amplitude, which through the normally open seventh key 48 enters the inputs of the voltage meter 24 (voltmeter), the differential indicator 23, and the sort limit setting devices 7 and 8. The use of peak detectors 47 when registering the amplitudes of harmonics of different frequencies allows one to exclude the frequency and phase indications of the information signal.

The voltage from the output of the first (second) detector 5 (6) to the information storage time interval corresponding to the maximum value of the harmonic amplitude is fed via the normally open seventh key 48 (Fig. 5) to the second input of the third comparator 45. Simultaneously from the fourth output of block 19 control pulses and t come to the normally open fifth key 42 and from its output

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yes to the first input of the third circuit AND 43. The second input of the third circuit I 43 is pulsed from the first unregulated output of the high-frequency generator 29, whose frequency for accelerating the setting of the sorting boundary exceeds the generator frequency t by 100-200 times.

When the third circuit AND 43 positive pulses UK are received from the control block 19 and the w-5 pulses from the generator 29, pulses are transmitted from the high-frequency generator 29 from the output of the first digital-to-analog converter 44 to the input of the digital-to-analog converter; Converter 44, connected to the first input of the third comparator 45, increases the constant voltage proportional to their number. At the moment when the first detector 3 and the output of the digital-to-analog converter 5 become equal in magnitude, a voltage pulse is output at the output of the third comparator 45, arriving at the input of the first (second) trigger 13 (16) and the second input of the third the trigger 41 included in the feedback circuit of the block 7 for setting the boundaries of the sorting. The trigger 41 changes its electrical state and its output voltage becomes a logical one. This voltage, acting on the control input of the normally open fifth key 42, closes it. As a result, the third circuit And 43 does not allow 44 pulses from the generator 29 to the input of the digital-to-analog converter.

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The output voltage of the digital-to-analog converter 44, and consequently, the voltage at the first input of the third comparator 45 becomes unchanged: - and the same as the voltage at the output of the first detector 5. Regarding the set voltage, which is the reference voltage, the levels coming from the first detector 5 voltage in the process of control. In order to set the new value of the reference voltage by pressing the button 27 (28) Resetting the third trigger 41 and the digital-to-analog converter 44 is reset.

Next, the level is set as described above.

From the measuring winding of the magnetization unit 2, the signal is applied to the comparator 9, which forms square impulses whose fronts correspond to the time of zero crossing EMF. Since the phase shift of the EMF varies from part to part, the position of the pulse fronts also changes. To ensure that the fronts of the pulses are matched with the control pulses of the control unit 19, they are fed from the output of the first comparator 9 to the first input of the first AND circuit. 10, At its second input, an impulse Up is applied from the NAND 33 scheme of the control unit 19. As a result, a pulse arises at the output of the first I 10 circuit only when a controlled part is placed in the magnetization unit 2. The pulse depth and its temporal position coincide with the pulse Upi, therefore, it is consistent with the control signals.

A reference sample (tuning part), which has undergone heat treatment under normal operation and has average permissible values of controlled properties, is placed in block 2 of magnetisation. Adjusting the current of low-frequency generator 1 connected to the magnetizing winding of block 2 creates a magnetic field at which the amplitudes are equal the harmonics allocated by the first 3 and second 4 selective amplifiers and recorded by the first 5 and second 6 detectors .- connected to them through the closed contacts of the paired two-field GOVERNMENTAL switches 30 and 31. The difference between the amplitudes of harmonics and their equality are recorded using a differential indicator 23, whose inputs are connected to outputs of the first 5 and second 6 detectors. The voltage on the differential indicator 23, the voltage meter 24, the first 7 and the second 8 units of setting the boundaries of the sorting comes from the first 5 and second 6 detectors in the information storage time interval, i.e. when no impulses arrive,; from control block 19 to control inputs of the sixth 46 and seventh 48 keys of the first 5 and second 6 detectors

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By adjusting the magnetization mode, the amplitudes of the harmonics are equal, as evidenced by the zero reading of the differential indicator 23. This magnetization mode is chosen as the working one. To determine the boundaries of the sorting, alternate reference samples (tuning parts) with the minimum and maximum allowable properties are placed in the magnetization unit 2. By placing the part with the maximum permissible properties in magnetization unit 2 and registering the amplitude of the higher harmonic using a voltage meter 24 at the respective positions of the first 25 and second 26 two-pole switches, the upper sorting limit is set. For this, the first button 27 is previously reset. The first block 7 of setting the boundaries of the sorting is reset.

After this operation, pulses U start to flow to the second input of the sorting boundary setting unit 7, and control unit 19 to the fourth input — pulses from the first output of the high-frequency generator 29 until the reference voltage produced by the digital-to-analog converter 44, will not be equal to the voltage at the output of the first detector 5 from the reference sample. At the time of the comparison, the growth of the reference voltage is stopped, and it, when monitored, determines the level of the amplitude of the higher harmonic (for example, 17 or 27) corresponding to the upper allowable range of monitored properties.

Placing in the magnetization unit 2 a reference sample with minimum permissible controlled properties and performing similar operations, the levels of harmonics amplitudes (for example, 13 or 21) corresponding to the lower level of permissible properties are established using the second block 8 of the setting of the sorting boundaries.

After setting the sorting boundaries, the device is ready for control. In the magnetization unit 2, the controlled parts are placed and, according to the amplitudes of the harmonics, the parts are sorted into the Norma and Brak groups, as well as using

The voltage meter 24 makes a quantitative assessment of the properties of parts falling into the Norma group. At the same time, with the help of the second 15 and third 18 indicators, the details are evaluated, respectively Above norm and Below norm, in the vicinity of the boundaries of the range of permissible properties.

If the harmonic amplitudes correspond to the interval of permissible values of the monitored properties, then both units 7 and 8 of setting the boundaries of the sorting generate pulses that trigger the first 13 and second 16 triggers. Their output voltage becomes logical one. The voltage is applied to the inputs of the second 14 and third 17 normally open keys and to the inputs of the second AND 22 circuit. The control inputs of the first to fourth keys 11, 14, 17 and 20 are connected to the output of the second And 22 circuit. When pulses are fed from the first 13 and The second 16 triggers to the inputs of the second circuit AND 22, during its course, a pulse is generated that opens the normally closed fourth key 20 and closes the normally open first, second and third keys 11, 14 and 17. From the output of the fourth key 20, the signal is sent to the fourth indicator 21 Norm which indicates that to the part controlled by properties is within acceptable limits. The same signal through the closed contacts of the second switch 26 is supplied to the control input of the meter 24 for example

It measures the amplitude of one of the harmonics depending on the position of the contacts of the first switch 25. Since the keys 11, 14 and 17 are closed, the signals from the first 13 and. the second 16 triggers do not arrive at the second 15 and third 18 indicators, as well as from the first comparator 9 through the first AND 10 scheme to the first indicator 12 Marriage and third-party sorting mechanism.

If a part with higher than permissible properties is placed in magnetization unit 2, then pulses are generated only by the first unit 7 of setting the levels of the sorting boundary can be set 22 without using reference samples. For this, the third 30 and fourth 31 switches are switched, and from the second (adjustable) output of the high-frequency generator 29, voltage is applied to the first 5 and second 6 detectors. Since voltages of the same amplitude are applied to the inputs of the first and second detectors, the differential indicator 23 gives a zero reading. By switching the second bipolar switch 26 to a normally open position, a voltage is supplied to the control input of the meter 24 from a third-party constant-voltage source, which opens its input. Translation of the first switch 25 to the top (according to the scheme) position, voltage adjustment

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nick sorting. These start-up pulses of the 55-high-frequency generator 29 fail the first trigger 13, and the signal from it tangles the upper level of the required output to the normal amplitude input (known in advance). public second key 14 and further Then, by pressing the first button 27 i on the second indicator 15 Bbmie norms. Reset, drive the first block 7.us1456863

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At the same time, from the first comparator 9, through the first circuit And 10, the pulses arrive at the normally open first key 11 and, from its output, onto the sorting mechanism and the first indicator 12 Scrap.

If the properties of the part are below the permissible norm, then the pulses are outputted by the second block 8 of setting the sorting boundaries and start the second trigger 16. From its output, the pulses are fed to the normally open third key 30 and then to the third indicator 18 Below the norm Simultaneously to the normally open first key 11 pulses from the first comparator 9 are supplied and then go to the first indicator 12 Scrap and the passage of the sorting mechanism. If the item being inspected is significantly different from the permissible properties, then none of the units for setting the boundaries of the sorting line ri ri 15 and the third 18 indicators do not signal the deviation of the properties. However, in this case the defective parts were reliably detected. The signals from the first comparator 9 through the first circuit And 10 0 are fed to the input of the normally open first key 11 and from its output to the first indicator 12 Scrap and the input of the sorting mechanism.

Levels of sorting boundaries can be set without using reference samples. For this, the third 30 and fourth 31 switches are switched, and from the second (adjustable) output of the high-frequency generator 29, voltage is applied to the first 5 and second 6 detectors. Since voltages of the same amplitude are applied to the inputs of the first and second detectors, the differential indicator 23 gives a zero reading. By switching the second bipolar switch 26 to a normally open position, a voltage is supplied to the control input of the meter 24 from a third-party constant-voltage source, which opens its input. Translation of the first switch 25 to the top (according to the scheme) position, voltage adjustment

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setting the boundaries of the sort to their original state. After releasing the first button 27, the upper level of the sorting boundary is automatically set. Then, having turned the first switch 25 to the lower (in) position and adjusting the output voltage of the high-frequency generator 29, set the voltage, which corresponds to the lower level

border sorting. By pressing the second reset button 28, the second block 8 of resetting the sorting boundaries is reset. After releasing the second button 28, the lower level of the sorting boundary is automatically set. After switching the switches 26, 30 and 31 to the initial state, the device is ready for ;. sorting parts

Claims (3)

1. A device for quality control of ferromagnetic parts, comprising a generator and a magnetization unit connected in series, the first and second selective amplifiers, whose inputs are connected to the output of the magnetizing unit, the first and second detectors, the first and second sort boundary setting units, the first input of each of which are connected to the output of the first and second detectors, respectively, characterized in that, in order to increase the reliability of the control, it is equipped with the first comparator connected in series, the input to Secondly, it is connected to the output of the magnetizing of the blocking unit, the first circuit And, first. key and nepEM-i indicator, connected in series by the first trigger, the first input of which is connected to the output of the first block for setting sorting boundaries, second key and the second indicator, connected in series by the second trigger, the first input of which is connected to the output of the second block for setting boundaries of sorting, third a key and a third indicator, a control unit, the input of which is connected to the second input of the generator, and five outputs are connected respectively to the first inputs of the first and second detectors, to the second inputs first and second rows of detectors, with vtorm. the input of the first circuit And, with the second inputs of the first and second blocks of setting the boundaries of the sorting and with the second i-ry inputs of the first and second trig iT.poBj are connected in series by the fourth key and the fourth indicator, the second And circuit, whose two inputs are connected to the outputs, respectively, of the first and second triggers, and the output - with the control inputs of the first, second, third and fourth keys, the differential indicator, whose two inputs respectively, the first and second detectors are connected to the outputs, a voltage meter, a first switch, the common output of which is connected to the information input of a voltage meter, and the first and second switched DMDS Yen with V-codes of the first and second detectors, the second switch, the common output of which is connected to the control input of the voltage meter, the first switched output is designed to be connected to a constant voltage source. And the SECOND H-to the output is connected to the fourth output Key, the first and second normally open buttons, the first output of each of which is connected to the third input, respectively, of the first and second sorting boundary sets, the second output of the button is connected to a constant voltage source and a high-frequency generator, which connected to the fourth inputs of the first and second blocks to set the boundaries of the sort. 2. The device according to claim 1, characterized in that, in order to reduce the tuning time, it is provided with a third and fourth switch, each of which is connected between the output of the corresponding selective amplifier and the third input of the corresponding detector, high-frequency generators are made with a second adjustable output which is connected to the first comm. the third and fourth switches, the second commuted outputs of which are connected to the outputs of the first ta of the second selective amplifiers, respectively, and the common outputs of the third and fourth 15 the switches are connected to the third inputs of the first and second detectors, respectively. 3. The device according to claim 1, wherein the control unit is made in the form of a second comparator connected in series, the input of which is the input of the control unit and the output is the fourth output of the control unit, and the NAND circuit the output of which is the third output of the control unit, connected in series to the differentiator, the output of which is connected to the output of the second comparator, the first diode, the cathode of which is connected to the output of the differentiator, the NOT circuit, the OR circuit, the output of which is the fifth output of the control unit second monoflop whose output. is the second output of the control unit and connected to the second input of the NAND circuit, the second diode, the anode of which is connected to the output of the differentiator, and the cathode to the second input of the OR circuit, and the second waiting multivibrator, whose input is connected to the output of the OR circuit, ; and the output is ka control. sixteen first entry block4. Device POP.1, characterized in that the first and second units for setting the sorting boundaries are implemented in the form of a third trigger connected in series,. the first input of which is the third input of each of the units for setting the boundaries of the sorting, the fifth key, the second input of which is the second input of each of the units for setting the boundaries of the sorting, the third circuit AND, the second input of which is the fourth input of each of the units for setting the boundaries of the sorting a digital-to-analog converter, the second input of which is connected to the first input of the third flip-flop, the third comparator, the second input of which is the first input of each of the units for setting the sorting boundaries, and the output ene with a second input of the third flip-flop and is the output of each of the blocks usta-; Novki sorting boundaries. . sssa / aa copmipoSf L Criminal Code Phie. 2 J / V d L mh n N n  m n Ut rp I .- J fie.d Phage. Thebes.