SU32200A1 - Altimeter for measuring pressure at high altitudes - Google Patents

Description

The use of a conventional altimeter for measuring pressures at high altitudes is associated with some difficulties due to the insignificant pressure at these altitudes. To ensure accuracy in determining the heights in the proposed altimeter, the aneroid box is provided with a matrix on which the membrane rests at high pressures.

In FIG. 1 shows a vertical section of the proposed altimeter; and FIG. 2-vertical section of the matrix.

In the aneroid box 7, a matrix 2 is placed, the surface of which either has a waviness identical to that of the box (Fig. 1), or is made smooth, as shown in Fig. 2. Spring 3, the stretching box, is taken so that the base of the box begins to move away from the matrix

only at a known predetermined pressure ;, for example, 200 or 150 mm, etc. With such a device, neither the box nor the spring will experience high stresses at high atmospheric pressures in the lower layers.

The change in the voltage of the spring 3 and the box / will only begin when the events whose measurement is required in this case. Thus, the readings of such an instrument will be free from the consequences arising from large ranges of box and spring voltages.

The subject matter of the invention.

An altimeter for measuring pressures at high altitudes, due to the fact that the aneroid box 7 is provided with a matrix 2 placed inside it, designed to rest the membrane on it at high pressures.

FIG. 2

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