SU543402A1 - X-ray Angiography Unit - Google Patents

Description

I Depending on the required shooting frequency, in the control panel, set the speed perepkap in the appropriate position than the definition of e1x; the magnitude of the fojjMMjjyeMoro operating voltage, rated at terminal 8. The voltage at the terminals: excitation windings 9 and 10 of motor motors 1 and 2 is supplied aa6n; siOHp (5Nff4) HO when the unit is turned on,

. .-ohaasio schedule of medical research set the switch 11 modes of operation. On the example}, it is necessary to carry out at first an examination with one serograph, and then two serogographs in phase. If the mode switch is set to D, the leftmost position is.

When the start button 12 is pressed, the start turn off turn 13 and the closing contacts 14 locks the start button 12, the 15th of the autonomous operation of the serogroup is activated by the electric motor 1 and me. A sernograph with a speed determined by the operating voltage triggers a shooting mode.

After irovedena series of images (according to the ASO schedule of medical research) switch 11 modes of operation set to the extreme right of the joint common-mode shooting.

Gfi press the start button, the relay 13 turns on and blocks the start button, relays 16 and 17 are activated, which turn on the electric motors 1 and 2 for a lower voltage, which is applied to terminals 18 rotated to the initial position fixed by sensors 3 and 4. After this, relay 16 and 17 are de-energized and electric motors 1 n 2 are stopped and but | Mal1: closed contacts 19, 20, 21, relay 22, 15, 16 and contacts 23, 24, 25 Relay 22, 26, 2 7, dynamic braking is carried out, which at

The slow turning speed of the serographs' mechanisms provides high phasing accuracy.

As soon as the mechanisms of both seriograps are turned to phase-locked position, sensors 3 and 4 close the relay circuit 27, which by the closing contacts 28 commute three points of the same rings 5, 6 with each other,

parallels the core windings of electric motors 1 and 2 and turns on the in-phase operation relay H2, which, with its make 29 contacts, connects the operating voltage supplied to the terminals

| WE 8, at the same time to both the electric motor bodies 1 and 2. With this electrical connection of the electric motors, the serographs operate in a strictly phase-coordinated position, regardless of the

The moments of load on each of them.

Claims (1)

Formula invention Radiographic installation for anbiographic studies, containing at least two seriographs, equipped with individual electric drives on the base In the case of direct current motors and a relay unit, characterized by the fact that, in order to achieve a synergistic operation of seriographs over the entire operating range, including the starting period, and ynpd- In terms of operating conditions, each serio graph is provided with an initial position sensor, for example a microswitch, kinematically connected with an electric motor, on the shaft of which three are mounted. current collector rings, by means of which three points of the main windings located at an angle of 120, are brought to the contacts of the relay unit. Sources of information taken into consideration in the examination: 1, Prospectus of the company E etpa-Sctionoudec AB, LOT, Stockholm, January 1968 (prototype).