DLR - Flight Experiments

You are here: Home:Flugbetrieb:Flight Facility Oberpfaffenhofen:Aircraft:Falcon

Basissensorik Falcon 20

Data Acquisition The data acquisition system can store up to 130 different channels including analog data from the meteorological sensors and ARINC 429 data from the avionics. Additional user data can also be stored on this system. The standard data acquisition frequency is 10 Hz, data used for turbulence investigations are sampled with 100Hz.
Full article

Aircraft Position, Velocity and Attitude

The Honeywell Laserref Innertial Reference System (IRS) uses ring laser gyros and servo accelerometers to measure horizontal, vertical and angular acceleration in the Cartesian aircraft reference system. The IRS internal computer determines aircraft position, attitude and velocity from the measured accelerations using advanced Kalmann filtering techniques to reduce drift errors from signal integration.

Full article

Static and dynamic pressure Rosemount Model 1501 Digital Pressure Transducer - Noseboom, Rosemount Model 1201F2 Pressure Transducer - Noseboom, Rosemount Model 1221F2 - Noseboom
Full article

Temperature Two deiced Rosemount Total Air Temperature (TAT) sensor housings BW102 are used for temperature measurement. As sensing elements a fast open wire PT100 element and a slow encapsulated PT100 element are placed inside the housings. The principal of operation is the measurement of the temperature dependent resistance of a platinum wire.
Full article

Flow Angle Sensor

A Rosemount 858 flow angle sensor is used to measure the 3-D airflow. The principal of operation is sensing differential pressures across horizontally and vertically aligned ports positioned on a hemispherical head. At zero angle of attack/sideslip all ports sense equal pressures. As the aircraft rotates to a positive angle of attack/sideslip a differential pressure is sensed across the vetical/horizontal pressure port.

Full article

Dew Point and Humidity For water vapor measurements three different instruments are used: a commercial aircraft dew point hygrometer (GE 1011B, General Eastern), a slightly modified capacitive sensor (Humicap-H ,Vaisala) and a Lyman-alpha absorption instrument (Buck Research, Boulder). The General Eastern 1011B is a dew/frost point hygrometer developed for aircraft application.
Full article

Remote Sensing (optional) The Heitronics Model KT19.85 is used to remotely measure surface or cloud top temperature in the range of –50 to 200 °C. The principal of operation is the pyroelectric detection of infrared radiation emitted by the earth referenced to an internal black body source. The spectral range of the detector is 9.6 to 11.5 µm.
Full article

Radiation (optional) Pyranometer Type Eppley (up/down), Pyrgeometer Type Eppley (up/down), Pyrgeometer Type DLR (up/down)
Full article

Data Acquisition RAMSES (Research Aircraft Meteorological Sensor data Evaluation Software) is a universal data processing software for the calculation and visualisation of meteorological aircraft data. The software was developed at DLR Flight Facility and is based on IDL (Research Systems Inc.), a platform independent interactive programming language.
Full article

Data Acquisition

Aircraft Position, Velocity and Attitude

Static and dynamic pressure

Temperature

Flow Angle Sensor

Dew Point and Humidity

Remote Sensing (optional)

Radiation (optional)

Data Acquisition