SU191685A1 - DIFFERENCE VIBRATOR FOR OSCILLOGRAPH - Google Patents

Description

Known magnetoelectric vibrators to oscilloscopes are used to register the difference between the instantaneous values of two electrical quantities, the mobile system of which consists of a permanent magnet and a mirror mounted on a uniform yarn, and the magnetic system is made in the form of a closed ring core, on which two bunks of identical induction coils are symmetrically located .

The proposed vibrator differs from the known ones that its magnetic system is made in the form of two pairs of induction coils arranged by a node with an angle of 90 ° to each other, while diametrically disposed coils are interconnected in series with each other. This makes it possible to increase the accuracy of the measurements.

The drawing shows the design of the proposed vibrator.

It consists of two pairs of identical coils J, diametrically placed in a circle at an angle of 90 ° to each other and intended for supplying to them compared to my own Ll and U-Z. The windings of each pair of coils are connected in series and their mms are added up. When flowing through

a pair of current coils / xp through another current / 2 as a result of superimposing both of the two magnets between the inner ends of the coils ii and the air gap circuit creates 5x multi-axis. In this field there is a movable part of the device, consisting of a compact, permanent Martnira 2 and 3 mirrors, mounted on a stretched elastic tip 4. The movable part of the device is acted upon by the resulting magnetic field, as well as the mechanical moment of twisting of the filament. In this case, the magnitude of the rotation of the magnet relative to the selected reference axis is uniquely related to the value of the difference / 1- / 2 or, which is a function of time.

The mirror 3 casts the image of the light source 6 onto the screen 5. The optical system 7 stands on the optical beam of light, located in the hub 8, strengthened by the aid of the centers 9 in the ring 10. With a half of set screws // the slope of the vt..tkn can be graduated accordingly, ontic oscil of the oscilloscope during initial setup of the instrument. The ring 10 together with the mapping screens 12, 13 and the latch 14 is fixed in the housing 15 of the HOMOHUI bushing 16, 17 and the nut 18. The middle of the bushing is a cylindrical cavity with a lid 19 filled with a damping fluid (oil). In this cavity, a tube 21 is fastened with a nut 20, along the axis of which the thread-ribbon 4 is tightened. The initial rotation of the thread is adjusted by the head 22. The output of the thread is attached to the petals on the disk 23, ukrenlepny on the sleeve 8 with a ring 24 and nuts 25. Petals are connected by flexible wires to contact legs 26, which are 1 sec in contact. 27. The instrument housing is closed with a key 28.

The subject is invented and

A difference vibrator for an oscilloscope containing a magnetic system and a movable system made in the form of a Ukrenlen1Pz1h on a uiruga thread of a pinned magnet and a mirror, characterized in that, in order to improve measurement accuracy, the vibrator magnetic system is made in the form of two or more katushek The nodes are located at an angle of 90 ° to each other, and the diametrically located coils are interconnected so as to follow.

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