Fuel Characteristics Sensors Overview

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Questions and Answers

What is the primary function of the densitometer in the fuel characteristic sensors?

To measure the fuel density (correct)
To measure the fuel level directly
To correct variations in fuel temperature
To determine the type of fuel used

How does the compensator differ from the densitometer?

Its capacitance depends on the fuel dielectric constant. (correct)
It is not affected by the type of fuel used.
It measures fuel level variation.
It measures fuel density directly.

Which statement is true regarding the configuration of the compensator and densitometer in Airbus aircraft?

They are combined into a single unit called the cadensicon. (correct)
They are separate units for each function.
They do not vary with fuel temperature.
The densitometer is less critical than the compensator.

What does the compensator's signal correct for?

<p>Changes in fuel brand and temperature (C)</p> Signup and view all the answers

What type of sensor does the densitometer utilize to measure fuel density?

<p>A vibration sensor or an automatic hydrometer (A)</p> Signup and view all the answers

Study Notes

Fuel Characteristics Sensors

Each fuel tank has two sensors: a compensator and a densitometer.
The densitometer measures fuel density, which is used to calculate fuel mass from the measured fuel level.
The densitometer uses either a vibration sensor (frequency varies with fuel density) or an automatic hydrometer.
The compensator is similar to a fuel quantity sensor but only measures dielectric constant changes, not fuel level.
The compensator's signal corrects dielectric constant variations caused by temperature or different fuel types.
On Airbus aircraft, the compensator and densitometer are combined into a single unit called a cadensicon.

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Description

This quiz covers the key characteristics and functions of fuel sensors in aircraft, focusing on the roles of the compensator and densitometer. Learn how these sensors measure fuel density and correct for variations in dielectric constants due to temperature and fuel types. Discover the integration of these sensors in Airbus aircraft as a single unit known as the cadensicon.