SU123730A3 - Automatic recording device - Google Patents

Description

In the auto-D1atic () control systems of the iipii.MeiiHiOT, automatic recording devices that contain a sensing element that produces an electrical signal subtracted from the signal of the measuring sensor, an amplifier controlling a reversible motor coupled to the recorder carriage, and a tapered gear .

The proposed device is more perfect than the known devices, since it can be used as a commenter element of a magnetostrictive sensor with a torsion ferromagnetic rod. This is achieved by the fact that the guide rails, along which the recorder carriage moves, are connected to the ends of a torsion bar rigidly fixed in its middle part.

The drawing shows a diagram of the proposed device.

The device contains a magnetostriction compensating element with a torsional ferromagnetic rod /, the torque on which is created when the carriage 2 moves with a ner 3 and is directed to the rails 4 connected to the ends of the torsion rod. The torsion bar 1 in its middle part is fixed in the beam 5 and the torch winding of the excitation 6 connected to the alternating current source 7 and the measuring rollers 8 is fixed in the beam 5.

The carriage is moved reversibly, 1 st;) by the motor 9, the control winding of which is connected to the amplifier 10. At the input of the JO amplifier, there is a difference in the voltage developed by the sensor in the measuring sensor 11 and the compensator} 2. Dutch1 K 11 is made according to the Czechoslovak patent No. 86377 and consists of a torsion ferromag | itna rod perceiving the measured parameter of air flow.