SU1054796A1 - Device for measuring conductance - Google Patents

Abstract

DEVICE FOR ELECTRICAL CONDUCTIVITY MEASUREMENT; Contains flat current electrodes connected to the HCTO4HHKosi of direct current, placed in the charge of the explosive, and shunt resistance, O hg and chi-gtts e so that, with a circuit for improving the accuracy of measurement by increasing the time resolution of the capacity, the shunt resistance is performed flat k is placed in the charge of the explosive, with the electrodes and shunt resistance of the races. laid in one plane parallel to the plane of initiation.

Description

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The invention relates to a technique for measuring electrical conductivity, namely, devices for measuring the electrical conductivity of explosion products.

A device for measuring the electrical conductivity of an explosion product is known, which uses electrodes placed in an explosive charge, interconnected by an auxiliary shunt resistance and powered by a direct current source 1.

The device makes it possible to observe the electrical conductivity of the explosion products in the chemical reaction zone of the detonation wave due to its low spatial-temporal resolution.

It is also known a device containing flat electrodes placed in a charge of explosive, perpendicular to the plane of initiation of the explosive, along with an additional shunt resistance located outside the charge of the explosive and powered by a constant current C23

The disadvantage of this device is low accuracy, due to the presence of a parasitic circuit electrodes shunt resistance.

The purpose of the invention is to improve the measurement accuracy by increasing the temporal resolution.

The goal is achieved by the fact that, in a device for measuring electrical conductivity, which are connected to a direct current source

electrodes placed in the charge of the explosive, and shunt resistance, the latter is made flat and placed in the charge of the explosive, the electrodes and schuptovoy resistance are located in one plane parallel to the plane of initiation.

FIG. 1 shows a device for measuring the electrical conductivity of explosion products, general view; in fig. 2 shows an arrangement of electrodes and auxiliary shunt resistance.

The device is made of electrodes 1, made of copper foil 0.02 mm thick, 3 mm wide, auxiliary shunt resistance 2f made of tantanum foil no thicker than 0.04 mm, wide. 2 mm and welded to the electrodes. Electrodes with a shunt resistance 3 are placed between the gang of the explosive 4. The initiation of the explosive is carried out from the plane 6. The supply and signal cables are soldered to the terminals 5 of the electrodes. The sensor is supplied with direct current; .

Due to the fact that the electrodes and shunt resistance are made of foil and are located in the same plane parallel to the plane of initiation, then after the arrival of the detonation wave on this plane. They move at the same speed, as a result of which the contact electrodes - the shunt resistance is not disturbed for the time needed to measure.

Claims (1)

DEVICE FOR MEASURING ELECTRIC CONDUCTIVITY; It contains flat electrodes connected to a direct current source placed in the explosive charge and shunt resistance, such as and to ensure that, in order to increase the measurement accuracy by increasing the time resolution, the shunt resistance is made flat and placed in the explosive charge, and the electrodes and the shunt resistance are located in one plane parallel to the initiation plane.