SU864202A1 - Device for measuring szimuth non-uniformity of magnetic field - Google Patents

Description

(54) DEVICE FOR MEASURING THE AZIMUTAL INHOMOGENEITY OF THE MAGNETIC FIELD

one

The invention relates to electrical measuring equipment and can be used both for measuring all types of magnetic field inhomogeneities and for measuring cos4.

According to the main auth. No. 464860 is a device for measuring an azimuthal inhomogeneity of a magnetic field consisting of a measuring sensor connected to a series-connected shaper pulse generator, an impulse delay unit, a strobe pulse shaper and a key output of which is connected to an indicator, a control sensor connected to one input of a block of signal subtraction , to the other input of which the measuring sensor is connected, and its output is connected to the second input of the HZ key

The disadvantage of this device is the limited functionality and range of measured phases.

The aim of the invention is to expand the range of measured parginetres.

The goal is achieved in that a device for measuring the azimuthal inhomogeneity of a magnetic field containing a measuring sensor is connected to a measuring unit for measuring magnetic field inhomogeneities and a signal reading unit whose output is connected to the first input of the first key; the second input of the signal reading unit is connected to the output control sensor, the measurement unit of inhomogeneities made in the form of serially connected sharp pulse generator, delay unit and pulse generator, the first Exit measuring unit successively through inhomogeneities

15 connected the first key and the switch with two terminals connected to the indicator, equipped with serially connected with the second key, adder, block relations, and

Claims (1)

20 additionally by the third switch terminal connected between the measuring sensor and the indicator. The second input of the second switch is connected to the output of the inhomogeneity measuring unit, and the output of the first switch is connected to the second input of the adder and the second switch terminal, the output of the control sensor is connected to the second input of the relation block . The drawing shows the functional scheme of the device. The device contains a measuring sensor 1, a unit for measuring inhomogeneities of magnetic fields 2, an | -unit measuring unit of inhomogeneities. Magnetic fields 2y a subtracting unit 3, a shaper of sharp-pointed impulses 4, a block of delayed pulse 5, a shaper of strobe pulses 6, a key 7 and an indicator 8, the second key 9, the adder 10, the relationship block 11, the switch 12 and the control sensor 13, the reference in amplitude. If the switch is set to the it position, then we will complete the complete scheme of the known device. When translating it into the MI position, we get a test that allows to measure cos h, which is usually necessary to know when connecting many loads, i.e. to determine whether the load has an inductive or capacitive nature. The principle of operation of the device is based on the following. The differential voltage from the reading block 3 in general (for arbitrary phases) can be written Up and –i, C cosVsi cosd -U sinoL. . (1) At the moment, according to the correspondence between what is achieved with the help of the delay block 5, the magnitude of the voltage pulse at the output of the switch 7 has the form Up ljimcos4 ± 0-Uirn. (2) With each force generator of strobe pulses 6 and key 9, at the same time, we cut a pulse from the voltage Uj, which is equal to. (3) By adding the 10 signal (2) and (3) with the help of the matchmaker, we get. Up% + UQ ir /, j u cosif (4) From this it follows that with the help of relationship block 11 one can get. / 5 11, -j / i. we get a Cos cos meter, which can work in a wide range of phase measurements between signals and at the same time: In a known device, to obtain information about the sign of the phase by the polarity of the pulse cut from the difference signal, which allows us to judge what kind load takes place - inductive or capacitive, and take appropriate measures. Thus, if the device is used in measuring the magnetic field of the betatron, measuring the inhomogeneity) it can also be used to follow the setting of the power loop to resonance. The device can be applied to any enterprises where it is necessary to control the nature of the load. The invention The device for measuring the azimuthal inhomogeneity of the magnetic field according to ed. 464860, characterized in that, in order to expand the range of measured parameters, it is equipped with a second key connected in series, an adder, an ratio block, and an additional third switch connected between the measuring sensor and the indicator, the second input of the second key is connected to the output the inhomogeneity measurement unit, and the output of the first switch is connected to the second input of the adder and the second terminal of the switch, the output of the control sensor is connected to the second input of the ratio block. Sources of information taken into account in the examination 1. USSR author's certificate 464860, cl. G 01 R 33/02, 1973.