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Pss-8m OEM atmospheric data computer ADC and total atmospheric temperature sensor Tat

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Brief introduction
The pss-8m OEM air data computer ADC is a multi input and multi output airborne integrated equipment. It is obtained by high precision pressure sensor, temperature sensor and angle sensor, such as static pressure Ps, total pressure Pt, total temperature tat Angle of attack (angle of attack) AOA and sideslip angle AOS and other original parameters, and then these parameters are transmitted to the corresponding test conversion equipment through the input interface, then the current flight data and various parameters and data of external flight environment can be obtained. The atmospheric data computer and total temperature sensor Tat work together with some atmospheric parameter sensors, input and output interfaces According to some original parameters measured by sensors, the ADC of pss-8m OEM atmospheric data computer and the total temperature sensor tat,

Pss-8m OEM atmospheric data computer ADC and total atmospheric temperature sensor Tat

A detailed introduction to

Pss-8m OEM atmospheric data computer ADC and total atmospheric temperature sensor Tat

The pss-8m OEM air data computer ADC is a multi input and multi output airborne integrated equipment. It can be obtained by high precision pressure sensor, temperature sensor and angle sensor, such as static pressure Ps, total pressure Pt, total temperature tat, AOA and AOA Sideslip angle AOS After the original parameters are transferred to the corresponding test conversion equipment through the input interface, the current flight data of the aircraft and various parameters and data of the external flight environment are obtained. The air data computer and total temperature sensor Tat work together with some atmospheric parameter sensors and input and output interfaces. According to some original parameters measured by sensors, such as static pressure, total pressure, total temperature, angle of attack, etc., more data related to atmospheric parameters are calculated, such as flight altitude HP, vertical rate of change, indicated airspeed IAS, vacuum velocity TAs, Mach number, atmospheric static temperature sat, etc AOA angle of attack Etc. These data will provide instrument system indication or display, as well as automatic flight control system, engine control system, flight data recorder, navigation computer, flight management computer, etc. The total temperature signal of the total temperature sensor Tat can be used to calculate the parameters of sat and TAS.


During the flight of the aircraft, Pss-8m OEM The main output parameters of ADC and tat of atmospheric data computer are as follows

  • Flight altitude HP: the barometric altitude of the aircraft is obtained after the air pressure is corrected.
  • Total temperature Tat: the temperature when the adiabatic stagnation of air flow reaches zero.
  • Total pressure PT: the pressure measured parallel to and directly opposite to the direction of air flow. The data can be directly measured by the set pressure sensor.
  • Static pressure PS: the air pressure around the aircraft without turbulence.
  • Dynamic pressure QC: the difference between total pressure and static pressure, which is a function of calibrated airspeed CAS.
  • Angle of attack AOA: the angle between the incoming velocity of airflow and the chord.

adopt Pitot Correct introduction of total pressure Pt and static pressure PS is one of the keys to accurately measure flight atmospheric data parameters. Due to the interference of the aircraft itself on the aerodynamic flow field, In order to make the total pressure and static pressure introduced in practice deviate from the real value in free flow, the atmospheric data computer ADC is needed to correct the static pressure source error. The static pressure source error affects all atmospheric parameters, However, in the actual atmospheric data computer, it is not necessary to modify each atmospheric parameter. The software program is compiled by using the given function relationship to calculate the real static pressure and other atmospheric data parameters, The purpose of correction can be achieved by using the modified static pressure.

Qualified by ground test Pss-8m OEM The ADC also needs to be installed on the corresponding aircraft for flight test , The error curve of static pressure source is calibrated. Static pressure source error curve given by wind tunnel test , It is obtained by blowing the model in a certain scale , It is different from the real situation of the aircraft. therefore , It needs to pass multiple flight tests , The actual static pressure source error curve is given, and then , Modify the software program for flight test verification again. The test was carried out in the flight test research center using the comparative flight test method. The airborne data acquisition system should be installed in the equipment cabin of the aircraft , Ps Standard static pressure Pt Total pressure sensor, total atmospheric temperature sensor, etc. In flight , Continuously measure and record the static pressure, total pressure, total temperature of standard sensor and output of atmospheric data computer. Through the real-time display system and the data collected by the computer for processing and analysis , The conclusion of comparative flight test is obtained.

Pneumatic compensation Pitot It involves aerodynamics, wind tunnel test, wind tunnel test and so on Pitot Design, computer technology, data processing, aircraft design and flight test. In the aspect of the development and development of the atmospheric data computer, the static pressure source error and its compensation are described. The experts engaged in the research and development and aircraft design have made great achievements in this field.


PSS-8M OEM type Air data computer and total atmospheric temperature sensor Tat Technical indicators:

  • Power supply: 28vdc (9 ~ 32vdc) about 28ma at 28vdc
  • Data interface: RS-485 half duplex) at 230'400 BPS or lower
  • Output: PS, QC, oat, HP, CAS, TAS, Mach, C / R, etc
  • Data refresh: 100Hz
  • Static pressure PS: 238hpa 1080hPa, -1'800 ft .. 35'000 ft, up to 70'000ft
  • Dynamic pressure QC (airspeed sensor): 200kcas, 300kcas or according to max. airspeed requirement or customer
  • Total atmospheric temperature sensor Tat (OAT): - 60 ° C+ 70°C
  • Pressure accuracy: 0.1% FS (- 45 ° C.. + 60 ° C)
  • Weight: 0.040kg ADC board, 0.005kg total atmospheric temperature sensor oat


The total temperature signal of pss-8m OEM type total atmospheric temperature sensor Tat can be used for atmospheric data computer to calculate atmospheric static temperature, real space velocity and other parameters.


The relationship between the total atmospheric temperature sensor Tat and the static temperature sat and oat


T AT=SAT+Ram Rise

Ram Rise=SAT × zero point two × M two


Pss-8 OEM atmospheric data computer and total temperature sensor Tat Related products: five hole pitot | heated pitot Atmospheric Data Tester | Air data test system | Dynamic and static pressure tester

           

ADP5. 5-hole pitot | angle of attack sensor | sideslip angle sensor   Hps-1 heated pitot    Straight handle pss-8 unheated pitot   

                 

L-type pitot | pss-8 not heated Pitot   Hps-1det heated pitot Ftb-1 angle of attack sensor sideslip angle sensor pitot         

       

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   Adts542f dynamic and static pressure tester     Adts405f atmospheric data test system   Adts552f Atmospheric Data Tester   


Pss-8m OEM air data computer ADC and total atmospheric temperature sensor Tat consultation Tel: 010-63378109    QQ:35254930

For details of pss-8m OEM air data computer ADC and total atmospheric temperature sensor tat, please visit the official website of delt Technology Co., Ltd http://xnta.cn/

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