SU836604A1 - Three-component meter of electric field intensity - Google Patents

Description

(54) THREE-COMPONENT TENSION METER OF ELECTRIC FIELD

The media (salinity, temperature and pressure), as a rule, differ from the measurement conditions for the difference in the intrinsic potentials of the measuring electrodes, which leads to significant changes in it and reduces the measurement accuracy. Closest to the proposed three-component electric field strength meter, comprising a body made of insulating material, on which dielectric bars with measuring electrodes at the ends and a recording unit connected to the body with a cable-cable pj are rigidly fixed.

The descent and ascent of such a device is carried out with special care so as not to damage the dielectric bars with electrodes, which are more than 1-2 m from the body. Compensation of the difference of the own potentials in this device can be done by placing the device or only measuring electrodes dismantled for this purpose from the end of the rods into the aquatic environment, where the external electric field does not affect the measurements. As a rule, such compensation is not made and the difference of the own potentials of the measuring electrodes is not taken into account, which reduces the accuracy measured.

Thus, the disadvantages of the known device is low measurement accuracy and inconvenience of operation.

The purpose of this invention is to improve measurement accuracy and ease of operation.

This goal is achieved by the fact that in a three-component electric field strength meter containing a dielectric body, dielectric rods with measuring electrodes attached to it and a recording unit connected to the dielectric body by a cable, the dielectric bars have positive buoyancy and are connected to the dielectric body / articulated the possibility of their turning from working position to ploskoy and HOU in the assembled position. In this case, the dielectric rods are equipped with a delay element in the assembled position, one of the measuring electrodes of the Z-component is mounted on the dielectric housing, and the other on the float, which is movably attached to the cable and connected to the delay element.

The drawing shows a three-component electric field intensity meter.

The meter contains a dielectric housing 1 with attached

to it is a hinged-dielectric shtangsi 2-5 with a positive flute with measuring electrodes 6-9 components X and Y and electrodes 10, 11 Z-component, one of which - 10 - is installed on the dielectric Kjpnyce 1, and the other 11 - on the float 12. In the assembled (inoperative) position, the rods are positioned vertically along the axis O of the body and fixed in this position by the mechanical delay element 13, which also fixes the float 12 with the help of the cable 14. With the cable 15, the device’s dielectric associated with registration unit 1 6. In the assembled position, the measuring electrodes 6-9 of the components X and Y and the electrodes 10 and 11 of the Z-component are combined in pairs. The calculation shows that placing the rods at an angle of 3-5 to the vertical or respectively to the HOU plane at an angle of 87-85 ° at the same time ensures the compactness of the device in the assembled position and reliable ascent of the dielectric rods in the aquatic environment. The simplest delay element 13 is, for example, a mechanical lock using a dissolving substance or an electromagnet.

The device works as follows.

Before measurements, include a delay element 13, fixing the rods 2-5 and the float 12 in the assembled position. The device is lowered freely along the bead or from the ice, without fear of damage to the measuring electrodes 6-9, which are brought together and protected by rods 2-5, and the electrodes 10 and 11 which are directly on the dielectric body 1. Directly at a predetermined depth of the assembled position of the device / when the measuring electrodes are reduced and the potential difference from the external electric field is absent on them, the difference of the own potentials of the measuring electrodes of each component is measured. After the element 3 Derzhko dielectric rod 13 and the float 12, 2-5, and are released under the influence of positive buoyancy float in the working position, wherein the rod and Cable-15 form lekartovu OHU2 coordinate system. The voltages from the measuring electrodes 6-11 through the cable-cable 15 enter the recording unit 16, in which the components of the intensity vector, E., and E are determined, taking into account the difference of the own potentials of the measuring electrodes, as well as the magnitude of the intensity vector

Claims (1)

Claim A three-component electric field strength meter containing a dielectric casing, dielectric rods attached to it with measuring electrodes and a recording unit connected to the dielectric casing by a cable rope, characterized in that, in order to improve measurement accuracy and ease of use, dielectric rods have a positive buoyancy and pivotally connected to the dielectric body with the possibility of their rotation from the working position in the plane of the HOA to the assembled position / -geometric rod provided with a delay element and in the assembled position, one of the measuring electrodes Z-component ustanon flax on the dielectric body, and the other measuring electrode 10 is mounted on a float that is movably attached to a cable and connected to a delay element.