Single sensor accurately measures fluid and water levels.
Improved accuracy and reduced costs
Over 10,000 TDR fluid probes are flying on a range of aircraft platforms. Meggitt’s breakthrough fluid gauging system utilises high-speed electronics and RF-based technology to accurately measure fluid levels and is compatible with all fluid types.
Not affected by fluid contaminants
No calibration required on-aircraft
Built–in-test(BIT) diagnostics with fast and easy fault isolation
Up to 30% lighter than capacitance-type probes
Accurate to 2.5 mm (0.1”)
Compatible with all aerospace fluids without compensation
Interfaces with all aircraft communication systems
No length limitation
Multiple sensors can be connected to remote processor or electronics integral to the probe
Applications for TDR fluid level sensors
This technology has been selected for the following:
Helicopter fuel systems
Helicopter gearbox systems
Civil aircraft hydraulic systems
The length, number and positioning of the sensors and signal conditioners can be adapted to the needs of your application. We can also design curved and angular configurations that can be mounted in any orientation to accommodate the tank geometry.
How does a TDR fluid sensor work?
In its simplest form, the TDR system is comprised of a simple wave guide sensor and an electronic controller.
The system sends an RF pulse into the fluid which is reflected off the fluid (oil/air, fuel/air or fuel/water) interfaces. The system detects and measures the time between the returned reflection(s) (also known as “electronic echoes”) from each interface in order to determine the height and quantity of each fluid within the sensor.
At Meggitt, we can provide you with a fluid sensor that is specific to your aerospace application and can be further customised to your particular requirements. To discuss what you need in more detail, contact us.