SU34634A1 - Capacitor - Google Patents

Description

Offered; The invention consists in the construction of an electrical capacitor, which serves to FIT a curve of capacitance change with a change in the angle of rotation of the capacitor. The invention aims at eliminating the disadvantages of already known condors, in which this fitting is carried out, for example, by bending over one of the end plates, cut for this purpose into radial narrow plates.

In FIG. 1 shows a top view of a capacitor; FIG. 2-section “go; FIG. 3 is a section through a modified capacitor, and FIG. 4 curves of the dependence of the capacitor capacitance on the angle of rotation of its moving system.

HF) si O of the capacitor is insulated from it by a rigid plate y, which, during rotation, can move relative to the fixed flexible plate 7, made in the form of an arc. Plate / using a strong spacer spring / 7 and adjusting screws B is connected to a fixed part, for example, with screen E. Rotate the nuts, you can change the distance between plate G and F at each given point. If one of the plates is one plate of a capacitor, and the other is another, then the distance between them changes,

(420);

You can change the capacity of this regulating capacitor. “The setting of each screw affects only the area where it is located. In this way, you can completely independently align the contour setting points (curve / in Fig. 4) with the points of a given curve (curve shown by dotted lines). Because. Since plate G is made of flexible and elastic material, then automatic interpolation will be obtained between individual points, and the curves will almost coincide.

To preset a multiloop receiver with one control knob, the proposed capacitor is inserted into one of the circuits and then, using adjustment screws, the points of the first curve / are fitted to the points indicated by crosses on the second curve // (Fig. 4).

The proposed capacitor can be equipped with two flexible plates D (Fig. 3) placed outside the plate G.

It goes without saying that it is in principle, completely indifferent which of the plates F or F is mobile, which is fixed; also it does not matter which is connected with the stator to which with the rotor of the capacitor.

In order not to increase much the beginning

-: I.: ..

esMKOcib, plates G can be made narrower to the initial end, as shown in FIG. 1. This provision of preliminary resonant tuning of the circuits is very important in those cases when TOMHbie curves are tuned (for example, a wave meter) or very high selectivity and sensitivity of reception are obtained with a very simple control of one handle.

In addition, in this way, it is possible to pre-tune several circuits (in pairs) with a predetermined detuning value and with a specific predetermined shape of the resonance curve, both in the width of the transmitted side frequencies and in sensitivity.

Subject invention

Claims (2)

1. A capacitor for preparing curves of capacitance change with a change in the angle of rotation of the capacitor, characterized in that of two plates moving relative to each other, one rigid W, not wide, is radially spaced, and the second plate F is flexible, has the shape of an arc and is equipped with several adjusting screws B, with the help of which at each given point of the arc it is possible to independently change the distance between the two plates and, thus, arbitrarily change the curve of the dependence of the capacitor capacitance on the angle of rotation. 2. The change of the capacitor according to claim 1, characterized by the use of two flexible arcs G. fig