RU1254876C - Meter of electric field of atmosphere - Google Patents

Abstract

An atmospheric electric field meter comprising a synchronous electric motor coupled to a reference voltage generator and a field sensor made in the form of a calibration electrode with sector openings, a shield electrode with sector blades and a “synchronous electric motor and a continuous measuring electrode on the shaft,” through an alternating voltage amplifier connected to the first input of a synchronous detector, the second input of which is connected to a reference voltage generator and the output to a register ru, different. what. in order to increase the accuracy of measurements, a rotational speed reducer is inserted into it, included between the axis of the synchronous electric motor and the axis of the floor sensor; moreover, the reducer, the number of shielding blades, the number of calibration overholes and the number of poles of the reference voltage generator are made in the ratio M / (2tn "a), N (2n-1) a, where m 1, 2, 3 ..; n 1, 2. 3, ..; / W - gear ratio gearbox. Д Д W, W - respectively. Angular а (axis of the axis of the sensor and the motor; а - number (integer) of the poles of the reference voltage generator; M - number (odd) of the poles aiHXpOHHoro of the electric motor; N - number of holes and blades of the calibration and shielding electrogrod

Description

 / 1 The appraisal relates to an electric meter THXffi iKe, in particular to a technique for measuring electrostatic and quasistatic fields of the atmosphere, can be used

meteorological and other research

The aim of the invention is to increase the accuracy of measurements by reducing the level of synchronous interference from the alternating voltage.

The drawing shows the design of the proposed meter.

The atmospheric electric field meter contains a synchronous drive elec trode 1 meter associated with the axis of the electric motor 1 geojet 2 reference nzprzheiml (for example, electromagnetic type with two pairs of magnetic poles) and a floor sensor including a stationary measuring solid electrode 3 (round metal plate), reinforced on the axis of the electric motor 1, a rotating shielding electrode 4 (plate with sector blades) and a stationary calibration electrode 5 (pst plate with sector holes), rfpn of this meter ny electrode 3 via an amplifier used alternating voltage is connected to the first input of synchronous detector 7, the second of which is connected to the output 2 of the support gbneratorz nzprnzheni, output - to the recorder 8, and the motor 1 is connected to a generator 2 of the reference voltage through a reduction gear 9 rotational speed.

Claims (1)

The claims ATMOSPHERIC ELECTRIC FIELD METER, comprising a synchronous motor connected to a reference voltage generator and a floor sensor made in the form of a calibration electrode with sector holes and a shield electrode with sector blades and mounted on the shaft of a synchronous electric motor and a continuous measuring through an alternating voltage amplifier connected to the first input of a synchronous detector, the second input of which is connected to a reference voltage generator, and the output to a registrar ru: characterized in that. that, in order to increase the accuracy of measurements, a speed reducer is inserted into it, included between the axis of the synchronous electric motor and the axis of the sensor, the floor, moreover, the gear The device works as follows. If field E is present and the shield electrode 4 rotates as a result of modulation of the field, an alternating voltage U with a frequency of Hz is generated at the measuring electrode 3 and at the output of amplifier 6, the amplitude of which is proportional to the field strength E (and number N), and the phase depends on the gender sign. The frequency of the reference voltage taken from the reference voltage generator 2 and supplied to the synchronous detector 7 is equal to Hz. In this case, the interference voltage with frequency fr, 400 Hz, being the even harmonic of the reference voltage with a frequency of 200 Hz, is almost completely controlled by a synchronous detector. Thus, the product of interference at the output of the synchronous detector in this the case is practically zero, the effect of malfunctions is zero; the floor meter is absent; (56) 1 / 1MYANITOV I.M. Devices., And methods for studying atmospheric electricity. Gostekhiedat, 1957, p. 194-200. Technical Description and Instructions for Use for an Aircraft Instrument for Measuring Electric Strain and Strength (SPNP). Civil Code of the USSR for hydrometeorology and environmental control, TRP them. A.I. Voeikova, L., 1979. shielding blades, the number of calibration holes and the number of poles of the reference voltage generator are made in the ratio K 2t a 5 N - (2n - 1) ". where t is 1,2,3. ...; , 2,3, ...; K - - gear ratio Torah: WP,, dv are the angular velocities of the axis of the sensor and the engine, respectively; a is the number (integer) of the poles of the generator 5 of the reference voltage:   the number (odd) of the poles of the synchronous motor: N is the number of holes and blades of the corresponding calibration and shielding electrodes. ./p writ Editor L. Pavlova Compiled by E. Pluzhnikova Tehred M. Morgenthal Corrector L. Pilipenko Order 3466 Circulation NGO Search. Rospatent 113035. Moscow, Zh-35. Rauska nab., 4/5 Production and Publishing Plant Patent, Uzhgorod, 101 Gagarina St.