SU1501996A1 - Arrangement for measuring thickness of fatty tissue - Google Patents

Abstract

The invention relates to agriculture, namely to automatic devices for selection and breeding work in determining the category of fatness of animals. The aim of the invention is to enhance the functionality by determining the amount of meat in the animal carcass. The device includes an ultrasonic piezoelectric transducer associated with the pulse generator 1 and, by means of the amplifier 3 and the pulse former, with the unit 11 of detuning from the connective tissue layer. In addition, the device contains a generator of 15 calibrated pulses, the first 8 and second 14 circuits and a digital indicator 10 with a block 12 tune-away from the tread thickness. When a pulse is generated by the pulse generator 1, the ultrasonic piezo transducer 2 sends an echo signal, which is perceived by the amplifier 2 and is delayed by the detuning unit 11 from the connective tissue layer. After that, the number of pulses, equal to the set of calibrated pulses, stacked in the range from the arrival to the arrival of the ultrasound signal in the muscle tissue, is displayed on the digital indicator 10. 3 Cp. f-ly. 4 il.

Description

with a

Fiel

The invention relates to agriculture, namely to automatic devices for selection and breeding work in determining the category of fatness of animals.

The purpose of the invention is to expand the functionality by determining the amount of meat in the animal carcass.

FIG. 1 shows the device, general, and its form; in fig. 2 - stress diagrams at individual points of the circuit; in fig. 3 is a block diagram of the tune-away block of the tread of the ultrasonic transducer; in fig. 4 - the block of detuning from the connection of the italian-woven layer.

The device contains a pulse generator 1, an ultrasonic transducer 2, an amplifier 3, a shaper 4 pulses, a synchronizer 5, a first standby multivibrator 6, a generator of 7 counting pulses, the first circuit AND 8, a RS-flip-flop 9, a digital indicator 10, a detuning unit 11 from the connecting woven layer, block 12 detuning from the thickness of the tread of the ultrasonic transducer 2, the second generator 13 counting impu: 1s, the second circuit And 14, the generator 15 calibrated pulses. The tread thickness adjustment unit 12 of the ultrasonic transducer 2 is the second pending multivibrator 16, designed to delay the pulse counting indicator 10 by a time equal to the travel time of the ultrasonic echo pulse across the tread. The block I l consists of the third standby multivibrator 17 and the And 18 circuit. The diagrams (Fig. 2) show the pulses at the output of the synchronizer 5 (a), the pulses at the output of the waiting multivibrator 6 (b), the signal at the output of the generator 1 (c) , the signal at the input of the amplifier 3 (g), the pulses at the output of the driver 4 (d), the pulse of the waiting multivibrator device llCe), the pulse pa the output of the circuit And the device 11 (g) the pulse at the output of the RS-flip-flop 9 (h), the pulse at the output block 12 (i), the counting pulses corresponding to the thickness of adipose tissue (k), the calibrated pulse generator and 15 (L), the pulse at the output of the AND circuit 14 (m), count pulses, the number sootvetstvuyuphie meat (n).

The device works as follows. Synchronizer 5 operates in a robust mode and triggers multivibrator 6, which triggers trigger 9 at the R input and pulse generator 1, the load of which is ultrasonic piezotransducer 2. Simultaneously, multivibrator 6 triggers the waiting puls 16 and 17 and generator 15 calibrated pulses . Ultrasonic piezoelectric transducer 2 emits radiation

blown animal through a layer of contact grease probing ultrasonic pulse. Ultrasonic echo pulse reflected from the boundary of the biological

tissue, enters the transducer 2 and excites an electrical impulse in it, which is amplified by the amplifier 3, starts the impulse shaper 4 and then, via block 11, enters the S input of the trigger 9.

In block 11, the pending multivibrator 17 creates an electrical impulse of opposite polarity with respect to the echo pulse reflected from the connective tissue layer. These pulses are added to the AND circuit 18, at the output of which a logical zero signal is generated, fed to the S input of the flip-flop 9, which remains in the initial state. An electrical impulse corresponding to an echo pulse reflected from the tissue interface transfers the trigger 9 to another steady state, and a pulse with a duration equal to the delay time of the reflected echo pulse is generated at the output of the trigger 9. This impulse hits one of the inputs of the AND 8 circuit, the second input of which receives impulses from the generator 7, as a result of which a two-digit four-digit digital matrix of the indicator 10 receives a packet of counting pulses indicating the thickness of the measured adipose tissue.

 Simultaneously with measuring the thickness of the subcutaneous fat, the device provides a mode for measuring the amount of meat per animal. Experimentally established the relationship between the thickness of the bolt and K () JiH4ecTB (jM me in the carcass. This dependence is a linear function with a negative coefficient of proportionality and is implemented in the device using the generator 13 counting pulses, the circuit 14 and the generator 15 ka0 pulses. The inputs of the circuit 14 are simultaneously received a pulse from the generator 15, a pulse from the RS flip-flop 9 with a duration proportional to the thickness of adipose tissue, as well as pulses from the generator 13 counting pulses resulting in - at, e. And 14 a stack of counting pulses is formed, which is proportional to the amount of mass in Tynie, which affects the other two bits of a four-digit digital matrix of the indicator 10.

As can be seen from the presented pulse diagrams (Fig. 2), the greater the thickness of the adipose tissue, the smaller the amount of meat in the carcass of the animal and, consequently, the duration of the reuse of a packet of pulses, and vice versa. To improve the accuracy of measuring the thickness of adipose tissue and the amount of meat, the device can be detuned from

0

influenced by the tread thickness of the ultrasonic piezoelectric transducer 2. To this end, the impulse from the standby multivibrator 16 providing tune-up goes to the second input of the digital indicator 10, where it delays the counting of pulses by a time equal to the tread time of the ultrasonic impulse.

Claims (3)

Invention Formula 2. The device according to claim I, and it is advantageous in that, in order to improve the measurement accuracy, a detuning block is inserted into it 1. A device for measuring the thickness of adipose tissue containing a series-connected pulse generator, an ultrasonic piezo transducer, an amplifier, 15 for the tread thickness of an ultrasonic pulse shaper and a converter transducer block, the input of which is connected to the connective tissue layer, RS-output of the first standby multivibrator, trigger The S-input of which is connected to the output of the output - with the third input of the digital-detuning unit from the connecting-woven indicator. interlayer, the first waiting multivibrator, 3. The device according to p. 2, different the output of which is connected to the input of the generator by the fact that the block of the detuning from the thickness of the pulse protrusion, the R-input of the RS flip-flop and the second detector of the ultrasonic transducer Rum to the input of the detuning block from the connect-made in the form of the second waiting multi-woven layer, synchronizer, tivibrato, pa. the output of which is connected to the input of the first4. A device according to claim 1, characterized by a standby multivibrator, circuit I, one25 about the tune-up block from the connector — from the inputs of which is connected to the output woven layer is made in the form of an RS flip-flop the first generator of the counting third-standby multivibrator and the third pulse connected to the second The input circuit And, to one input of which is a subcircuit And, as well as a digital indicator, the output of the third standby multi is one of the inputs of which is connected to a vibrator, and to another input an output to the circuit And, characterized in that, C30 pulse former , to the input, with the aim of expanding the functional possible third multivibrator of connecting connections by determining the number of the output of the first waiting multivibram in the animal carcass, into the device, and the second oscillating pulse-circuit generator inverting the output is connected to the S input RS-flip-flop. The second And the generator of calibrated pulses, the first input of the second And circuit, the second input of which is connected to the trigger output, and the output of the first standby multivibrator connected to the third the input of the second circuit And, while the second input of the digital indicator is associated with the output of the second circuit I. 2. The device according to claim I, and it is advantageous in that, in order to improve the measurement accuracy, a detuning block is inserted into it on the thickness of the tread of the ultrasound transducer, the input of which is connected with the output of the first standby multivibrator, and the output with the third input of the digital indicator. Dm tg ai . L / Squad figl