Презентация, доклад по английскому языку

aircraft relative to the level of the Isobaric surface, the atmospheric pressure of which is set on a barometric scale. The principle of operation of the altimeter is based on the measurement of atmospheric pressure with a rise to a height using a block of aneroid boxes.

VD-10 altimeters are installed on the left and middle panels of the dashboard. Altimeters are fed with static pressure from the air pressure receivers PVD-7 of the power supply system of aneroid-membrane devices.

arrow showing the height in meters; 3 — scale; 4, 5 — indices; 6, 7, 22 and 23 of the gear wheel; 8 — tribe; 9—; 10— compensator of the second kind; 11 — plug; 12 — axis sector; 13, 15 — the plug; 14, 16 — rod; 17 — compensator 1 of the first kind; 18 — block of aneroid boxes; 19 — movable center; 20 — a gear wheel; 21 — tribe; 24 — rack-and-pinion; 25 — barometric scale.

static air pressure surrounding the helicopter. The body cavity is connected by means of a pipeline with static pressure receivers located on the frame №2. The sensitive element of the device is a block of aneroid boxes consisting of corrugated membranes made of phosphorous bronze. The air from the boxes is pumped to a residual pressure of 0.15÷0.2 mm Hg. St. the earth aneroid boxes are in the most compressed state. In this case, the elastic force of the membranes balances the force of atmospheric pressure.