SU24002A1 - Device for reproducing light signals for electrical telescopes and other kinds of electrical signaling - Google Patents

Description

The main patent No. 7848 describes a device for reproducing light signals for the purposes of electrical telescopes and other kinds of electrical signaling using a Kerr capacitor. In this device, an independent self-adjustable source of constant electromotive force is connected to the capacitor circuit, through which the Kerr phenomenon is caused, and a device can be used to supply a modulated high-frequency current to the capacitor. The proposed modification of this device is that the polarizing voltage on the Kerr capacitor is set by four batteries connected in series.

In FIG. 1 shows a diagram of a device with one (last) lamp amplifier; FIG. 2 - scheme of its modification.

The grid battery C, the battery N, the anode battery A of amplifier M and battery B are connected in series and set a constant polarizing voltage across the capacitor Kerr K, and battery B is optional in case the sum of voltages

batteries C, // and L are not enough to polarize. This can be the case if the last lamp of the amplifier -: is lit and the anode current goes through it, closing through any external resistance K; then the polarizing voltage on the Kerr capacitor is immediately reduced by the magnitude of the voltage drop. . / d /. Thus, any change in the strength of the anode current will cause a change in the polarizing voltage on the Kerr capacitor and, therefore, an absolutely undesirable change in the operating point, which degrades the quality of the light modulator. Therefore, the need for a battery B to compensate for the magnitude of the drop E becomes quite obvious. A voltage transformer or a self-induction coil, or ohmic resistance, or a reproducer P, serving to control the transmitted current pulses, modulating the voltage on the capacitor K, can be connected to the voltage supplying circuit. through which the rheostat a is connected to a point from the circuit fed by the batteries C, I, L and B. The device modulating the light of source B, besides the condenser L, has two light strips, which are reversible before the modulated beam. A. So im way, tension at stake. The Kerr densator is composed of a variable part arising on the reproductive output P and a constant part consisting of: the voltage of the C, H, A, B batteries, the minus of the anode current loss of the E on the reproducer P "; (or generally on the external "resistance of the anode circuit of the last lamp). The magnitude of this loss of voltage E can sometimes reach up to 50% of the voltage: an anode battery amplifier.

In a modification of the described device (Fig. 2), the Kerr cell circuit is connected to the amplifying device circuit by a capacitor O, which reduces the aforementioned loss E to zero and completely eliminates harmful polarizing voltage when the anode current strength changes .

The constant polarizing voltage on the Kerr K capacitor is

of the sum of battery voltage C, //, A

-and B regardless of whether there is a current or

 it is not in the anode circuit of the last lamp.

The total voltage of all these batteries

it must be obviously less than the total voltage of battery 5 than in the case of the above scheme. Variable

the anode current of the last

-lamps between the points n, n, will be divided into two parts, one of which

go directly on the anode soy-resistance G (or choke, etc.).

and the other part, through the capacitor, And, and the resistance, L or throttle, etc. The alternating voltage occurring at the terminals of the resistance, D will be added to the direct voltage having a capacitor K, and therefore, the brightness of the VO beam will change accordingly voltage across the resistance D (or choke, etc.). The said device also makes it possible to reduce by the amount of the voltage of the additional battery B, which is also very significant, especially in portable installations (for example, a film-making set of a talking movie, etc.).

The subject matter of the invention.

Claims (2)

1.Varification of the device for electrical telescopes and other types of electrical signaling according to patent No. 7848, characterized in that the polarizing voltage on the capacitor K Kerr is set by four batteries connected in series: a grid battery C amplifier, a battery N heating the amplifier, an anode battery A amplifier and an additional battery B, in which the control loudspeaker P or a transformer or a self-induction coil, or ohmic resistance, also included in the anode circuit Latter lamp amplifier. 2. A device change according to claim 1, characterized in that the circuit of the Kerr cell is connected to the circuit of the amplifying device through a capacitor I.