SU320735A1 - Device for measuring the rate of change of pressure - Google Patents

Device for measuring the rate of change of pressure

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Publication number
SU320735A1
SU320735A1 SU1462991A SU1462991A SU320735A1 SU 320735 A1 SU320735 A1 SU 320735A1 SU 1462991 A SU1462991 A SU 1462991A SU 1462991 A SU1462991 A SU 1462991A SU 320735 A1 SU320735 A1 SU 320735A1
Authority
SU
USSR - Soviet Union
Prior art keywords
pressure
measuring
rate
change
variometer
Prior art date
Application number
SU1462991A
Other languages
Russian (ru)
Inventor
Е.А. Виноградов
Ю.А. Ксенофонтов
А.А. Осветимский
О.А. Сафонов
Original Assignee
Е.А. Виноградов
Ю.А. Ксенофонтов
А.А. Осветимский
О.А. Сафонов
Filing date
Publication date
Application filed by Е.А. Виноградов, Ю.А. Ксенофонтов, А.А. Осветимский, О.А. Сафонов filed Critical Е.А. Виноградов
Application granted granted Critical
Publication of SU320735A1 publication Critical patent/SU320735A1/en

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Description

УСТРОЙСТВО дл  ИЗМЕРЕНИ 1 Пзобретение относитс  к устройствам, измер ющим скорость изменени  давле и1  , и может быть исиользовано в системах автоматичеекого регулировани  давлени  в герметических кабинах летательных а1:1наратов. Известные усгроиства дл  измерени  - - , состо щне из вариометра и электрического нреобразовател , реализуют зависимость: . d-128.- / V mri.p где Лр-иеренад давлений на чувствительном элементе вариометра; Т) - коэффициент динамической в зкости воздуха; / - длина капилл ра; D - диаметр каиилл ра; у---объем статической полости вариометра; ДАВЛЕ 5 10 15 20 25 СКОРОСТИ ИЗМЕНЕНИЯ ИЯ 2 ири одинаковых значени х измер емой скорости - -вариометр дает различные ноказани  di в зависимости от велич ны абсолютного давлени  р. Целью изобретени   вл етс  иовышение точности измерени . Поставленна  нель достигаетс  тем, что устройство снабжено анероидной коробкой, установленно в динамической нолости вариометра, жесткий центр которой кинематически св зан с движком нотенциометра . Вход нотенциометра соединен с выходом преобразовател , а выход - со вторичным ирибором. На чертеже ноказана принципиальна  схема устройства. Устройство дл  измерени  скорости измонени  давлени - состоит из корнуса /, разделенного уиругой мембраной 2 на две иолости - динамическую 3, соединенную с источником измер емого давлени  непосредственно , и статическую 4, соединеиную с источником измер емого давлени  через канилл р 5, иреобразовател  6 перемещени  жесткого центра 7 упругой мембраны в электрическое напр женне; анероидной коробки 8, закренDEVICE FOR MEASUREMENT 1 The invention relates to devices that measure the rate of change of pressure and 1, and can be used in systems for automatically controlling pressure in hermetic cabins of aircraft a1: 1. The known methods for measuring - -, consisting of a variometer and an electric driver, realize the dependence:. d-128.- / V mri.p where Lp is the pressure factor on the variometer sensitive element; T) is the coefficient of dynamic air viscosity; / is the length of the capillary; D is the diameter of the copper gauge; y is the volume of the static cavity of the variometer; PRESSURE 5 10 15 20 25 SPEED CHANGES OF PL 2 And equal values of the measured speed - the -varimeter gives different indications di depending on the magnitude of the absolute pressure p. The aim of the invention is to improve measurement accuracy. The delivered nel is achieved by the fact that the device is equipped with an aneroid box, installed in the dynamic part of the variometer, the hard center of which is kinematically connected with the engine of the notciometer. The input of the notionometer is connected to the output of the converter, and the output is connected to the secondary device. The drawing shows a schematic diagram of the device. A device for measuring the rate of pressure change — consists of a cornus / divided by a surgeon membrane 2 into two hollows — a dynamic 3 connected to a source of measured pressure directly, and a static 4 connected to a source of measured pressure through a cannel 5, and a transducer 6 moving a rigid center 7 of the elastic membrane in the electric stress; aneroid box 8, zakren

SU1462991A 1970-07-24 Device for measuring the rate of change of pressure SU320735A1 (en)

Publications (1)

Publication Number Publication Date
SU320735A1 true SU320735A1 (en) 1971-11-04

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