SU481840A1 - The method of measuring the velocity head - Google Patents

The method of measuring the velocity head

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Publication number
SU481840A1
SU481840A1 SU1939157A SU1939157A SU481840A1 SU 481840 A1 SU481840 A1 SU 481840A1 SU 1939157 A SU1939157 A SU 1939157A SU 1939157 A SU1939157 A SU 1939157A SU 481840 A1 SU481840 A1 SU 481840A1
Authority
SU
USSR - Soviet Union
Prior art keywords
measuring
velocity head
pressure
velocity
magnitude
Prior art date
Application number
SU1939157A
Other languages
Russian (ru)
Inventor
Владимир Борисович Живетин
Original Assignee
Казанский авиационный институт
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Казанский авиационный институт filed Critical Казанский авиационный институт
Priority to SU1939157A priority Critical patent/SU481840A1/en
Application granted granted Critical
Publication of SU481840A1 publication Critical patent/SU481840A1/en

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Description

(54) СПОСОБ ИЗМЕРЕНИЯ СКОРОСТНОГО НАПОРА(54) METHOD FOR MEASURING VELOCITY

Изобретение относитс  к измеритель ной технике, в частности к способам определени  скоростного нанора. Известные способы измерени  скоростного напора не обеспечивают достаточной точности в широком диапазоне измерений . Цель изобретени  - повыи/ени  точнос ти и расширение диапазона измерений. Поставленна  цель достигаетс  тем, что замер ют избыточное давление на аэродинамической поверхности, например на крыле летательного аппарата, в любы двух точках, при этом в одной из них создают дополнительный напор и по изве ной функциональной зависимости определ ют величину скоростного напора. На чертеже изображена блок-схема устройства, реализующего предлагаемый способ. На аэродинамической поверхности 1 устанавливают в различных точках спаренные датчики: давлени  2 и 3. Создают от источника 4 дополнительную силу, известную по величине, например посто н ную на входе одного из спаренных 1 чиков. Затем замер ют давление на верхней и нижней поверхност х крьгла с помощью спаренных датчиков давлени  2 и 3. Полученные сигналы суммируют в сумматорах 5 и 6. Если дополнительна  сила равна нулю, то сигналы на выходе сумматоров 5 и 6 должны быть равны. Полученные сигналы дел т в блоке деле ни  7, на выходе которого получают напр жениеU По известной величине определ ют скоростной напор с помощью функциональ ного усилител  8, у которого Ugh,, св зано с и„, следуюишм соотношением: С тгЙ- Ч К вых- Д , - известные посте  н Предмет изобретени  Способ измерени  скоростного напора, основанный на измерении избыточного JThe invention relates to a measuring technique, in particular, to methods for determining a high-speed nanor. The known methods for measuring the velocity head do not provide sufficient accuracy in a wide range of measurements. The purpose of the invention is to improve the accuracy and expansion of the measurement range. This goal is achieved by measuring excess pressure on an aerodynamic surface, for example, on the wing of an aircraft, at any two points, while in one of them an additional pressure is created and the magnitude of the velocity pressure is determined from a known functional relationship. The drawing shows a block diagram of a device that implements the proposed method. On the aerodynamic surface 1, paired sensors are installed at various points: pressure 2 and 3. An additional force is generated from source 4 that is known in magnitude, for example, constant at the input of one of the paired 1 ticks. Then, the pressure on the upper and lower surfaces of the krgl is measured using paired pressure sensors 2 and 3. The received signals are summed in adders 5 and 6. If the additional force is zero, the signals at the output of adders 5 and 6 should be equal. The received signals are divided in block 7, the output of which receives a voltage U The velocity head is determined from a known value using a functional amplifier 8, in which Ugh is associated with and ", the following relationship: - D, - known pos. Subject of the invention. Method for measuring velocity head based on measurement of excess J

давлени , отличающийс  тем, что с целью расширени  диапазона работы и повышени  точности, замер ют избыточное давление на аэродинамической поверхности, например на крыле летательного аппарата, в любых двух точках, при этом в одной из них создают дополнительный напор и по извесной функциона|гьной зависимости определ ют величину скоростного напора.pressure, characterized in that in order to expand the range of operation and increase accuracy, excessive pressure is measured on the aerodynamic surface, for example, on the wing of the aircraft, at any two points, while in one of them an additional pressure is created and according to the known function determine the magnitude of the velocity head.

SU1939157A 1973-07-04 1973-07-04 The method of measuring the velocity head SU481840A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1939157A SU481840A1 (en) 1973-07-04 1973-07-04 The method of measuring the velocity head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1939157A SU481840A1 (en) 1973-07-04 1973-07-04 The method of measuring the velocity head

Publications (1)

Publication Number Publication Date
SU481840A1 true SU481840A1 (en) 1975-08-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1939157A SU481840A1 (en) 1973-07-04 1973-07-04 The method of measuring the velocity head

Country Status (1)

Country Link
SU (1) SU481840A1 (en)

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