SU447651A1 - Permanent Magnet Monitoring Device - Google Patents

Description

(54) DEVICE FOR MONITORING CONSTANT MAGNETS

The invention is fire-resistant to instrumentation and can be used to control permanent magnets under production conditions. And; rigid devices of the ecto-dynamic type for the control of permanent magnesium. This is characterized by high energy consumption and complexity of the measurement process associated with the need for coma: mutations of currents of large magnitudes. The purpose of the invention is to reduce energy consumption and simplify the control. For this, the proposed magnetoresistance of waters is made with an additional air gap 30 r, filled with a movable step wedge made of a magnet of a soft material: and an air gap .; the frames with current are bridged by an alternating magnetic shunt, structurally integrating: with a wedge, and the resistor switch in the circuit of the frame with current and the magnetizing current isolator are connected to the wedge. ; The drawing shows the constructive scheme of the device. j The device contains a magnetic core 1, having an air gap 2 for a controlled, its magnet, a gap 3 for a frame 4 with a current. : a gap 5 filled with a stepped wedge 6 made of a magnet of a flexible material, a gap,: a variable magnetic shunt 8 alternating, magnetizing coils 9,: resistors 10, a switch 11 and a switch 12 in the circuit. 9 mechanically associated with the wedge. The device works as follows. : the rotated magnet is placed in the air gap 2. The wedge 6 is installed; it is sewn into such an extreme position at which; the air gap 5 is completely filled with the wedge, while the air gap 7 is filled with shunt 8, i.e. the air gap 3 of the frame 4 with current is shunted. In zgot moment frame frame with current is opened by switch | telem 11 and switch 12 is switched on, which closes the circuit of magnetizing drift 9,

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which are magnetized by a controlled magnet up to our own. When the wedge .6 is moved, in the construction of a smaller filling of rupture 5, the power supply circuit of the magnetizing coils 9 is broken, the frame circuit closes | ki with current and removed the shunt 8 of the Zezora. At the same time, the indication of the arrow attached to the frame corresponds to some points of the demagnetization curve of the controlled

magnet. As the gap 5 increases and, consequently, the induction decreases, less and less is introduced after the frame with the frame.

resistance resistor. After passing the last step of the wedge, it moves one (or more) steps in the opposite direction. The current frame arrow shows less induction corresponding to induction on the return line. Scale g: instrument graduated on exemplary magnet.

4 Subject of the invention

Device for YONTROL CONTAINER

A MaSiiHrrdB containing a magnetic conductor with magnetizing coils, having air gaps for a controlled magnet and a TOKOTvi frame, in series with which a shunt is inserted, consisting of fixed resistors and terminals, with the aim of reduction of power consumption and control, magnetic core is made with additional air gap, closed mobile wedge of magnetically soft material, and air frame gap with current is shunted by alternating magnetic shunt, constructively wired with a wedge, the resistor switch in the current frame circuit and the magnetizing current switch being mechanically connected to the wedge;