Open Access Open Access  Restricted Access Subscription Access

Design, Development of Signal Conditioning Circuit for Measurement of Pulse Mode Thrust during High Altitude Testing of Thrusters

Sahana A, Ashwini V. Bhat, Dinesh Kumaran, Jomon Mathew

Abstract


The thrust of high power propulsion engines is measured in integrated ground based test facilities. Several tests are performed to evaluate thruster characterization, system interaction, endurance, fuel injection and stability. The study of the thruster efficiency enables us to compute propellant velocities and specific impulse which are essential calculations for deep-space missions. Accurate direct measurement of Thrust or impulse is one of the most critical elements of thruster characterization and in the measurements made during HAT testing of Thrusters. Strain gauge based thrust measurement system is used for this purpose.

 

Keywords: Calibration, load cell, measurement, strain gauge, thrust


Full Text:

PDF

References


Kumar A., Anjaneyulu L. Emerging Trends in Instrumentation in Rocket Motor Testing Over Three Decades. Defence Science Journal, Vol. 65, No. 1, January 2015.

Tefnescu D.M. Strain gauges and Wheatstone bridges–Basic instrumentation and application of electrical measurement of non-electrical quantities. 8th International Multi-Conference on Systems, Signals & Devices, 2011.

Samuel E., de Lucenal, Marcelo G.S., de Aquino, Caporalli-Filho A. A Load Cell for Grain-Propelled Ballistic Rocket Thrust Measurement. IMTC 2005 - Instrumentation and Measurement Technology Conference Ottawa, Canada, 17-19 May 2005.

Surface preparation for strain gauge bonding. Measurements Group, NC, B-129, 1976.

Rahul T., Sahoo B., Arya S., Parvathy S.J., Vulligaddala V.B. A Wide Dynamic-Range Low-Power Signal Conditioning Circuit for Low-Side Current Sensing Application. 2015- 28th International Conference on VLSI Design and 2015- 14th International Conference on Embedded Systems

Vemuri A.T., Mayorga J.V. Two-step calibration of sensor signal conditioners. Analog Applications Journal.


Refbacks

  • There are currently no refbacks.