The device control of the integrity of the deposition of explosives on the surface of the channel of the shock wave tube

 

The invention relates to explosive, more precisely, to the manufacture of detonating cords. The technical result is to increase the reliability of control. The device according to the invention includes a radiation source, the radiation photodetector, an integrator, a comparison circuit and the indicator sleeve, which is installed between the radiation source and the photodetector. Moreover, the sleeve is cut along the axis and consists of two halves connected by elastic rings, the halves of the sleeve is a through slit for passage of radiation from the source to the photodetector. The radiation source is made coherent, as the photodetector used photoresistor, and the photodetector is connected through an integrator and a comparison circuit with the indicator. 2 Il.

The invention relates to the manufacture of detonating cords, namely the means of quality control in the manufacture of detonating cords, made in the form of a translucent tube, on the inner surface of the channel which is covered with a layer of explosive.

It is known device for controlling the volume concentration of particles in a translucent solution containing the radiation source, the object under examination, a radiation receiver, say, due to the high radiation power, to control the concentration of the particles of explosives on the working surface of the shock wave tube.

The closest in technical essence to the present invention is a device for controlling the thickness of the coating film during its deposition (ed. St. USSR 508666, 1976 (2C) cells MCI G 01 11/02).

However, this device does not provide requirements for quality control spraying explosives on the inner surface of the shock wave tube.

The technical result for the solution of which directed the claimed invention is to improve the accuracy of control of the density of application of explosives on the inner surface of the channel of the shock wave tube. This is achieved in that between the radiation source and the receiver are mounted sleeve, cut along the axis and consisting of two halves, connected by elastic rings, within which is located the shock wave tube, the sleeve halves are through the gap for the passage of coherent radiation from the source to the receiver, the circuit between the receiver and the comparison circuit included integrator, after the sleeve is installed, the device feed tube, followed by the device, the positive signal is used bipolar signal together with the reference signal.

Set between the radiation source bushing consisting of two halves, connected by elastic rings inside the shock wave tube can be used to record the position of the inner channel of the shock wave tube, which is applied to the explosive relative to the radiation beam and to compensate for the variation of the outer diameters of the tube.

The implementation of the halves of the sleeve through the slit for the passage of coherent radiation from the source to the receiver provides coverage directly only the surface of the channel of the shock wave tube and controls requirements for continuity of coating of explosives, ensuring continuity of the distribution of the shock wave that determines the authenticity.

The circuit between the radiation receiver and the comparison circuit of the integrator eliminates the influence of sharp boundaries between the different densities of the application of explosives and provides uniform density signal evaluation illumination from the radiation detector. This reduces the error density estimation, due to the noise signal from the sensor.

The pulling device creates a uniform tension of the shock wave tube during the inspection, providing ravnomerniji tube, the actuator which is electrically connected with the comparison circuit, allows to cut off the parts of the tube that does not meet the technological requirements of the control.

In Fig. 1 shows a diagram of the control unit of continuity spraying explosives on the surface of the channel of the shock wave tube. In Fig.2 shows a cross-section of the measuring device node of the control.

The device consists of a casing 1, which has a source of coherent radiation (laser) 2, sleeve 3, cut along the axis into two halves 4 and 5, connected by elastic rings 6, for centering channel 7, the shock wave tube 8. In the sleeve 3 is made through the slit 9 for the passage of the laser radiation to the sensor (photoresistor) 10. In the circuit of the photodetector 10 is enabled integrator 11, the comparison circuit 12, the actuator device 13 segments of the tube 14 and the indicator 15 for signaling marriage. When the control tube is moved by device feed tube 16.

The device operates as follows: the pulling device 16 reaches the shock wave tube through the sleeve 3. Depending on the tube diameter of the sleeve 3, which consists of two halves 4 and 5, expands or shrinks due to elastic stake is the ATA substance. The intensity of the radiation flux falling on the photoresistor 10 is determined by the thickness of the coating channel 7 explosive and sizes of the slit 9, and inclusions of large particles of explosives. The length of the slit determines the manufacturing tolerances on the continuity of the coating along the length of the tube, and the width excludes the tip of the vertical component of the channel walls. The integrator 11 aligns the signal intensity, and supplies the comparison circuit 12. When the intensity is reduced below a preset level, a signal of the comparison circuit 12, actuates the actuator 13, the device cuts the tube 14 and the indicator 15, which leads to the closure of the cutting part and the circumcision of the tube 8. When restoring the signal intensity of the cutting portion of the device segments 14 on the signal of the comparison circuit 12 is opened and the indicator 15 is extinguished. The monitoring process continues.

Claims

The device control of the integrity of the deposition of explosives on the surface of the channel of the shock wave tube containing the radiation source, the radiation photodetector and light, characterized in that it is provided with an integrator, a comparison circuit and a sleeve that is installed between the source of radiation is alcami, the halves of the sleeve is a through slit for passage of radiation from the source to the photodetector and the radiation source is made coherent, as the photodetector used photoresistor, and the photodetector is connected through an integrator and a comparison circuit with the indicator.

 

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