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.
ClaimsThe 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.
FIELD: manufacture of detonating cords; impact-wave fuses made in form of translucent tubes.
SUBSTANCE: proposed device includes explosive metering unit and its control system, non-coherent radiation source, optical system consisting of light diffuser, magnifying lens and fuse duct surface image video signal shaper, radiation photodetector, integrator, comparison circuit, reject indicator, rejection unit and reject actuating mechanism. Proposed device ensures continuity of spraying explosive on surface of impact-wave fuse.
EFFECT: continuity of spraying; possibility of monitoring density of spraying on inner surface of impact-wave fuse.
SUBSTANCE: method includes recording number of particles emitted by radioactive layer on basis of number of voltage or current pulses recorded by counting device, then to measuring detector a flow of ionizing radiation is directed from calibrating standard electrode and also registered is number of particles, position of covered electrode is change no less than two times, by turning it in horizontal plane around its axis for arbitrary angle, while repeating measurement of pulses number, while measurement time is selected to be such that number of recorded pulses was no less than 3600 pulses for each measurement position, and then selection of necessary number of electrodes is calculated for forming electrode system in chamber.
EFFECT: higher precision, higher safety.
FIELD: MEASUREMENT TECHNOLOGY.
SUBSTANCE: electromagnet wave is induced by means of directed aerial. The wave is incident to dielectric plate. Brusterain angle of incident wave is defined from minimum value of reflected wave and value of dielectric permeability is calculated. Power of incident and reflected waves are measured and the value of reflectivity and specific conductivity are calculated as well as value of dielectric loss of dielectric plate. Then incident angle of electromagnet wave is increased till achieving value providing total internal reflection of electromagnet wave and attenuation of intensity is measured at normal plane relatively direction of wave propagation. Factors of normal attenuation and thickness of dielectric plate are calculated. Method allows to find complex dielectric permeability and thickness of dielectric plates free of dielectric substrates.
EFFECT: improved reliability.
FIELD: electrical measurements.
SUBSTANCE: device is proposed for measurement of dielectric and magnetic permeability as well as thickness of spin coatings on surface of metal and can be used in chemical industry for inspecting composition and properties of liquid and solid media. Electro-magnetic field is induced in body of dielectric material to be inspected which material is applied onto dielectric substrate, by means of sequent excitation of slow surface waves: two E-waves are excited at different, but having almost the same value, wavelengths λr1 and λr2 and one H-wave having wavelength of λr3. Attenuation of field intensity is measured t normal plane in relation to direction of wave propagation by means of receiving vibrators system for different values of base d between them. Normal attenuation factors αE1,αE2 and αH are found from ratio of E(y)= E0 exp[-α(y) y]. Magnetic and dielectric permeability and thickness of magneto-dielectric coating are found from relations of and where has to be phase coefficient of H-wave.
EFFECT: improved precision of measurement.
FIELD: measuring engineering.
SUBSTANCE: meter determines dielectric permittivity and thickness of the oil layer by measuring at two angles unequal to the Brewster angle.
EFFECT: simplified design and expanded functional capabilities.
FIELD: radiometric testing.
SUBSTANCE: counting of electric pulses of all the detectors stops simultaneously as soon as any detector registers no less than specified number of electric pulses caused by ionizing radiation.
EFFECT: improved reliability.
2 cl, 1 dwg
FIELD: non-destructive inspection.
SUBSTANCE: primary and secondary n detectors are made of multielement converting elements made of materials having different atomic numbers. Materials are disposed in detectors subsequently starting from lower number to higher ones. Converting elements of primary and secondary n detectors are electrically connected with inputs of (1+n) analog-to-digital converters. Primary detector is rigidly fastened to collimator of radiation source and is turned to item with side having been made of material with higher atomic number. Secondary n detectors are turned to item with sides having lower atomic number. Points of stop of discrete displacement of radiator with primary detector along the rail are coincided with radial directions being placed in the middle of radial directions which form sectors and cross the items at lateral cross-section through their longitudinal axis and centers of secondary n detectors. Value of equivalent atomic number of any layer of coating is calculated from algorithm introduced into processor.
EFFECT: improved precision of inspection.
FIELD: the invention refers to the field of non-destructive control of objects with using of x-ray radiation.
SUBSTANCE: the arrangement has a source of x-ray radiation, three detectors of radiation and a scheme of processing. The characteristic feature of the arrangement is using of detectors with three-sectional converting elements with different spectral sensitivity. The technical result of the invention is increasing of energetic resolution expanding functional possibilities conditioned simultaneous measuring of the thickness of sheet material out of ferrous and non-ferrous metals.
EFFECT: the invention provides high metrological parameters.
FIELD: inspection of dynamics of changes in cellular structures.
SUBSTANCE: method concludes angular collimation of α-radiation by means of Soller collimator, registration of energy spectrum of collimated flux of particles, determination of lateral structures from the shape of registered spectrum on the base of its mathematical model.
EFFECT: improved precision; improved speed of measurement.
FIELD: measurement technology.
SUBSTANCE: microwave electromagnetic fields of running surface slow E-waves and E1 and E2 at two wavelengths λosc1 and λosc2 of oscillator being close in value above dielectric-metal surface at single-mode regime. Damping factors αe1 and αe2 of electric field strength are measured at normal plane relatively direction of propagation of slow surface of wave. Real value of dielectric constant and thickness of coating are calculated. Taking measured values of damping factors into account, values of deceleration are calculated for those wavelengths by relation of Directional pattern maximum angle of inclination θdp max(fz)=θe1(e2) is measured at far zone by means of vertically oriented receiving vibrator. Length of dielectric coating le1 and le2 is determined from relation of le1(e2)=0.552·λosc e1(e2)/(νdf e1(e2)-cosθe1(e2) and its value l=(le1+le2)/2 is subject to averaging.
EFFECT: improved precision of measurement of longitudinal sizes of dielectric coating.
FIELD: non-destructive inspection; X-ray technology.
SUBSTANCE: device has X-ray radiation source, first and second radiation detectors, processing circuit and registrar. Detectors with different spectral sensitivities are used. The detectors are disposed one after another in such a way to make contact to each other at the side being opposite to where X-ray source is located.
EFFECT: improved precision of measurement; improved sensitivity.