SU577496A1 - Digital magnetovariation station - Google Patents

Description

iniTuoe iiuTie, under the influence of which the pendant magnet rotates magnetically sensitive (element G 31. At the moment of compensation of the external magnetic field by the field of deflecting rings, the light beam strikes the substation of the photocell and generates an electrical signal, which by means of a command device connects a deflection signal rings is a digital current meter.

The disadvantage of this device is that it does not allow to simultaneously measure two orthogonal components of the magnetic field using one magnetically sensitive element, and two similar devices for such measurements reduce the accuracy of measurements and the mutual influence of pendant magnets magnetosensitive elements against each other and the effects of the fields of the deflecting rings. Elimination of mutual influence due to the increase in the distance between the quartz small-sensitive elements of the drive It leads to a significant increase in the size of the device, which makes it difficult to use it for measuring magnetic drinks, for example, at the bottom of the sea with its bathyscaphe. In addition, the use of two devices doubles the cost of installation and at the same time does not ensure the simultaneous measurement of the two components of the floor, which reduces the quality of measurements.

The aim of the invention is the simultaneous measurement of two orthogonal components of a magnetic field using a single quartz magnetically sensitive element,

This is achieved due to the fact that the proposed digital magneto-magnetic station contains an interval meter, a time meter, a counter and pulses, and a clock pulse generator, the output of which is connected to the first control input of the time interval meter and the first control input of the scan generator whose output is connected deflecting rings of the magnetically sensitive element, the output of the photoelectric device is connected to the second control input

the sweep generator, the second control input of the time interval meter and the control & to hush. the input of a pulse counter, the sweep generator being the source of the newest variable current.

The drawing shows a block diagram of the yci solution.

A photoelectric optical device 1) with a mirror of quartz mainshoot on the internal element 2 with illuminator 3 light. The output of the 4-clock pulse generator is connected to the first control input of the controlled oscillator 5 linearly varying (current and the first control input of timer 6 of the time interval. The output of the generator 5 linearly varying current is connected with the input of the deflecting rings 7,. The output of the photoelectric device 1 is connected with the control input of the controlled generator 5 of the linearly varying current, the second control input of the measuring bodies 6 the time interval and the control input 8 ,, periodomera

The proposed device operates as follows. A pulse from the generator output of 4 clock pulses is fed to the input of the controlled generator 5 of a linearly varying current and starts ei-o. Simultaneously, a pulse from the generator output of 4 clock | 1 pulses is fed to the input of the meter 6 time interval and starts the counting. A linearly increasing current from the output of the generator 5, a linearly varying current passes through the deflecting rings 7 and creates a linearly varying magnetic field inside these rings, which causes the magnet with a quartz magnetically sensitive mirror 2 mounted on it, Rotating Subscribe, the mirror reflects the light of the illuminator 3 to the photoelectric device 1 A pulse from the output of this device enters the input of the meter 6 time interval and the leading edge stops counting. At the same time, the same pulse arrives at the input of the periodomer, 8 and the leading edge starts the counting, and the falling edge stops it. .At the same time, this pulse is fed to the input of the controlled generator 5 of a linearly varying current and the trailing edge sets it in the initial state.

The proposed device has a number of positive properties. It provides information in the form of a code without additional conversion and information about the amplitude of the two components and the current time of the measurement moment is formed as a single pulse and is transmitted with minimal interference, which is convenient when distributing the measured $ P and & the hovering parts.

Claims (2)

Invention Formula A digital magnetovariation station, comprising a quartz dual sensitive element with deflecting rings, an illuminator, a photoelectric device and a sweep generator, included in the circuit of the diverting rings, characterized in that, in order to simultaneously measure two magnetic field of the magnetic field using a single quartz magnet strip, one quartz magnet strip must be attached to one quartz magnet strip. , it contains a time interval meter pulse counter and a clock pulse generator, output KOTopoio is connected to the first control input of the time interval meter and the first control input of the sweep generator, the output of which is connected to the deflecting rings of the magnetic element, the output element of the photoelectric device connected to the second control input of the scan generator, the second control input of the meter the time interval and the control input of the pulse counter, the sweep generator is a source of linear current. Sources of information taken into consideration during the examination: 1, USSR Copyright Certificate M9 40: 9175, Cl. Се U1V З / ОО, 1972. 2. USSR Author's Certificate No. 363953, Cl. G O1 V 3/00 1961. 3, USSR Copyright Certificate No. 475096, Class B 01V 3/00, 1972.