Satellite deployment requires the measurement of force in order to release a satellite from a rocket or a spacecraft. Compression forces from the payload’s spring mechanism needs to be tested to ensure deployment is successful, and that the satellite does not get damaged as its released.
Satellite Deployment
How can I test satellite compression forces?

What solutions are available in the UK for measuring force?
Interface suggests using custom LW Load Washers within the springs of the separation mechanism. Measuring the force on the springs ensures the two pieces of the spacecraft are properly locked down during launch, but also ensures that separation occurs for the satellite to release into space. Force readings can be amplified with SGA AC/DC Powered Signal Conditioners, and signals can be supplied to the control system of the satellite.
How do I successfully measure force of a satellite spring mechanism?
Interface’s custom LW Load Washers successfully ensured the two pieces of the spacecraft were locked together during launch, but also ensured it would be separated in space for the satellite to deploy.
Materials
- Multiple custom LW Load Washers
- SGA AC/DC Powered Signal Conditioners
FAQs on Satellite Deployment Force Measurement
How do you measure satellite separation forces?
By installing load washers in the spring mechanism to capture compression forces during launch and release.
What sensors are used for satellite spring force testing?
Custom LW Load Washers are commonly used to measure compression in satellite separation systems.
How do you test compression springs in satellite separation systems?
By placing load washers directly inside the spring stack and monitoring real-time force readings during simulated launch and release.
Why is force measurement important in satellite deployment?
It ensures the spacecraft stays secure during launch and that the satellite separates reliably without damage.
Best force sensors for spacecraft deployment – what should I use?
Load washers with signal conditioning are the most effective for measuring compression in satellite separation mechanisms.
Can load washers be customised for spacecraft applications?
Yes, Interface designs custom load washers to match spring size, force range, and space environment needs.
How do signal conditioners help in force measurement?
SGA AC/DC Signal Conditioners amplify load washer signals and send accurate data to the control system.
Are Interface load washers suitable for space environments?
Yes, they are designed for high loads, vibration, vacuum, and extreme temperatures.
Can this force measurement setup be used in other aerospace systems?
Yes, the same approach applies to docking systems, deployable structures, and inflatable space habitats.
Where can I get technical specs for LW Load Washers?
Datasheets and application notes are available from Interface Force Measurements UK or at the links below.
How do load washers work to measure satellite compression forces?
- Multiple custom LW Load Washers are installed into the springs of the, mechanism holding the two parts of the spacecraft together. Compression forces are measured to ensure the spacecraft is locked properly during launch. It is also tested to ensure all springs will separate in space, so that the satellite inside will deploy.
- Readings can be amplified with SGA AC/ DC Powered Signal Conditioners paired for every three LW Load Washers. Signals can be supplied to the control system of the satellite
Interface Force UK: provider of the world’s most accurate and reliable force measurement sensors and products
Highly regulated, complex, and vital industries rely on Interface Force UK for value, reliability, and accuracy in the full line of products we offer. Interface supplies precision force and torque measurement devices in the UK to ensure quality when product failure is not an option. This is also why we have been a trusted partner in the aerospace and defence industry since we were founded in 1968.
Aircraft, spacecraft, military and defence contractor companies such as Boeing, Airbus, Lockheed, Northrop Grumman, Raytheon, United States Military, Bombardier, Embraer, Gulfstream, NASA, and Cessna utilise Interface load cells for all types of thrust, wing, static, and fatigue testing.
Are Interface Force solutions available outside of the US?
Interface Force Measurements Ltd is the master distributor for Interface load cells in the UK, Ireland, Middle East and North Africa. Interface’s success is due to a global network and partnership with Interface Force Measurements Ltd. We are technical experts on our load cells, torque transducers, sensors, instrumentation and services and can help you with your applications requiring an Interface solution.

Satellite deployment – find out more
- Product information:
- Application notes – Aerospace industry:
- Case Studies:
- Please get in touch to discuss how we can help with your next aerospace project.