Aircraft and Helicopter weighing
The pilot must undertake a weight and balance check every time an aircraft or helicopter is readied for a flight. This method ensures that the aircraft and helicopter fly safely within the manufacturer's performance envelope.
Most aircraft, regardless of size, require new weight and balance information on a frequent basis. Installation or removal of equipment after repairs and alterations, or as part of the aircraft or operator's maintenance schedule, requires the use of the most correct weight and balance data.
For aircraft applications, load cells are a perfect choice
A load cell is a sensor capable of measuring or detecting push and pull forces. These sensors are usually mounted parallel to the force being applied to an assembly or system. Platform scales with load cells are used to weigh aircraft. Typically, the plane is pushed forward until all of the wheels are on platforms. The overall weight is then calculated as the sum of each platform's readings. Weigh distribution is calculated using distances and differences between platform readings. The Control Indicator, which measures load data from Load cells, is the most important aspect of the system. Each weighing platform is managed separately and is shown at the appropriate display before displaying the total
These force measurements can be useful for a variety of aerospace applications, including research and development, in-flight testing, ground testing, and onboard aircraft measurements.
Some of the applications for airplane weighing load cells are listed below:
- Component fatigue tests
- Measurement of shock and vibration
- Testing for impact
- Tests of structural function
- Testing of aerodynamics
- Pedal force assessment
- Aircraft weighing
Applications of Load Cells in Aerospace
Load cells have a wide range of uses in the aerospace industry. Load cells is used for everything including pre-installation material and component load testing to monitoring and controlling forces while installation, assembly, and operation. Load cells can be used for four main types of applications.
Initial stages of design and construction: Load cells can be used to test generic components for strength, force endurance, component longevity, and other characteristics. Seat belts, individual connections, aeroplane flaps, and cockpit instrumentation are among the components. A standard load cell design can be used for the majority of component-testing applications.
Testing for pre-flight, structural, and fatigue: Load cells can be used to test frame structural integrity, durability, and life cycles in order to validate aircraft designs and ensure that all essential criteria are met.
Testing and monitoring in the air: Load cells can be used to test and monitor structural forces in the aircraft during in-flight testing. Bolts and pins in strategic locations on the plane, for example, can be redesigned, constructed, and calibrated to serve as load cells and ensure structural integrity.
Monitoring and control by a flight-qualified force: Load cells are used for monitoring flight control systems. This occurs when new aircraft designs and builds have been approved for flight and have passed all relevant tests. On both commercial and military aircraft, load cells can be utilized to monitor flight control systems.
Pilot force input is measured by strain gauged load cells on commercial flights, and the data is transferred to the aircraft's Flight Data Recorder, also called as the "black box." Load cells are also used on commercial flights to detect the pilot's touch on the control stick.
Strain gauged load cells are significantly customized in military aircraft so that they may be used in difficult applications like in-flight tanker refueling, which exposes the load cell to hard environmental conditions during flight. The load cell is part of a system that tracks and measures the force applied to the aircraft during refueling.