SU67549A1 - Device for measuring magnetic and electrical quantities - Google Patents

Description

Proposed Measuring

The device is a bridge created exclusively from magnetic circuits, one of the diagonals of which serves to excite the magnetic flux of the IB system. A distinctive feature of the device according to the invention is the use of the indicated diagonal of the bridge as part of the magnetizer of an electric generator, the measles of which is placed in the iEmoca diagonal eigen and is excited by an electric current or made of a permanent magnet.

The invention is illustrated in the drawing, which shows a schematic diagram of the proposed device.

The proposed device is a closed core 5 of ferromagnetic material, the chain of which branches off just as it does in electric bridges, forming a closed system 6, 3, 7, 4. The diagonal of the bridge is formed by the magnetic jumper 2-2 (solid or provided with a gap). In the latter case, there is a movable system of some measuring device in the gap.

In the gap of the main core 5 an electromagnet 8 is placed with a winding 9 or a PERMANENT magnet. Its form can be any. If it is stationary, then a constant magnetic flux passes through the bridge circuit. If the magnet is brought into rotation, then the flow in the bridge circuit will be variable. The flow can be converted into a pulsating one direction, if the winding 9 is fed with a constant current, and part 8 is made of soft iron. When using a mobile system / magneto-electric device, in the case of a constant magnetic flux, it must be powered from a separate source of direct current; in the case of a variable flow (rotating magnet 8), it can be powered from a winding W, in which alternating voltage will also be induced.

With alternating current, a moving short-circuited ring or frame can also be used as an indicator, covering the diagonal of the bridge 2-2, which in this case is performed as an flat (without a gap) rod.

When using the described device, there is no need for any current sources at all and a completely magnetic bridge is obtained. In this system, with full symmetry of the bridge branches, the movable system 1 will not deviate, regardless of the magnitude of the magnetic flux in circuit 3 created by the magnet 8. The magnetic field in the 2-2 diagonal only turns out if the magnetic fluxes are not equal in the x branch. 7, 4 V. 6, 5 under the action of any: external magnetic or electrical processes.

Subject invention

A device for measuring magnetic and electrical quantities with a magnetic system, made in the form of a bridge, one of the diagonals of which serves to excite the magnetic flux in the system, in that the diagonal of the bridge is used as part of the magnetic circuit of the electric generator, the measles of which is placed in the gap the diagonal of the bridge is excited by an electric current or made of a permanent magnet.