SU31688A1 - Device for measuring movement speed - Google Patents

Description

The proposed device for measuring the speed of movement by integrating a mass freely suspended with respect to a moving body of a body is based on the following principle. As is well known, small changes in the parameters of an electron-tube oscillator, stabilized in frequency, can cause significant changes in the anode current. This, for example, is used to turn on a condenser microphone AND for modulation. The use of a frequency-stabilized lamp generator to measure the speed of movement is that the value of self-induction or the capacitance of the oscillator circuit varies with the influence of the deformations produced by the pressure caused by the inertia forces during acceleration.

In FIG. 1 is a diagram of a device for measuring speed / movement; FIG. 2-Diagram of the dependence of the constant part of the anode current on the capacitor capacitance.

The load L1 is suspended by the lever O to the plane of the AL, supported horizontally by means of various methods (cardan, gyroscope, etc.). The tide / S of the lever O rests on one of the plates K, rigidly connected to the plane- and electrically isolated from each other. This pair of plates forms an electric (362)

A capacitor, together with self-induction L, enters the oscillating circuit of a frequency-stabilized lamp oscillator T. , airplane, etc. The mode of the generator and the pressure of the lever O on the capacitor K are adjusted so that the action of the anode current through the amplifier Y on the counter C is compensated by direct current, which can s is taken from battery B (or from a DC source). At the same time the counter disk is fixed. When the movement speed changes, the pressure on the capacitor K changes, the plate of which is connected to the lever O, is deformed, causing a change in the capacitance of the capacitor K. In a certain generator mode, the diagram (Fig. 2) shows the dependence of the constant part of the anode current on the capacitor capacitance K Co corresponds to a current iao at which the speed of movement is constant or equal to zero. The corresponding deformation of the plates of the capacitor K is adjusted by screw D. The increase in speed corresponds to the movement of point Z up the curve, and the decrease - down. In the first case, the counter

increases the number of readings, decreases in the second.

The diagram (Fig. 1) gives an example of one of the possible devices, which in general can be quite diverse in implementation.

The described device for measuring the speed over time can make it possible to determine the distance traveled, i.e., to serve for the device of the so-called cursor tracker, which, as is known, is important in navigation.

The advantage of the proposed method over the known ones (lag, etc.) is that there is no influence of the medium in which the movement occurs (flow of water, wind, glide).

The subject matter of the invention.

A device for measuring the speed of movement by integrating accelerations freely suspended relative to a moving body of mass, characterized by the use of a capacitor / C, one of the plates of which is under the action of a freely suspended load M, and which is included, together with self-delivery L, in an oscillating circuit of frequency stabilized lamp generator T, the constant part of the anode current of which, passing through the resistance R, shunted by a capacitor, after being amplified by amplifier Y, is controlled by counter C.