Pressure Monitoring in Hybrid Rocket Engines

Pressure Monitoring of Hybrid Rocket illustration

This application note on Pressure Monitoring in Hybrid Rocket Engines comes from our friends at FUTEK.

Did you know that Pressure monitoring plays a vital role in the design, testing, and operation of Hybrid Rocket Engines?  Firstly, the use of gaseous or liquid components introduces the risk of rapid pressure spikes.  Which, if unchecked, can lead to catastrophic system failure.

Therefore, by implementing pressure monitoring systems, critical actions can be taken to prevent failure or trigger pressure relief systems.  Ensuring the safety of the mission.  In addition, pressure monitoring provides valuable feedback on engine performance.  Enabling system optimisation and efficiency improvements.

While most pressure sensors on the market are limited to a natural frequency of 1kHz.  The PFT510 series sets itself apart.  As it features natural frequencies ranging from 6kHz to 100kHz. This higher bandwidth enables real-time tracking of rapid pressure changes.  Hereby, offering unparalleled precision in hybrid rocket engine monitoring.

How the System Works

The PFT Series pressure sensor is designed to be mounted flush with the oxidizer tank’s inner walls.  Therefore, ensuring accurate pressure measurement during engine operation.

Real-time pressure data is collected by the sensor and can be streamed and logged using the USB530 to a PC running SENSIT software. Alternatively, the sensor can be connected to a PLC or DAQ system via the IAA300, providing flexible integration into existing test setups.

Products in Use

About FUTEK

FUTEK specialises in the design and manufacture of high-precision sensors, specifically focusing on load cells, torque sensors, pressure sensors, and multi-axis sensors. They also develop amplifiers, instrumentation, and software to complement their sensor products. FUTEK’s sensors are known for their accuracy and reliability, and they are used in a variety of industries including aerospace, medical devices, robotics, automotive, and industrial automation.

FUTEK’s expertise extends to providing custom sensor solutions for unique applications, and they are widely recognized for their work in the space industry. For example, their sensors have been used in high-profile projects like NASA’s Mars Rover missions. Their SENSIT software enables real-time data acquisition and analysis, further enhancing the integration and use of their sensors in advanced systems.

Their products are widely used in applications requiring precise measurement and control, including testing and quality control in R&D labs, as well as in-field operations.

Metromatics sell and support the FUTEK product range to customers in Australia and New Zealand.  Contact us to learn more.