Online Correction of the Dynamic Errors in a Stored Overpressure Measurement System
Abstract: The
problem encountered in sharp shock testing as a result of inadequate bandwidth
must be addressed to obtain an accurate overpressure peak value when measuring
the steep signals of shockwaves during explosions. A dynamic compensator can effectively
amend the dynamic errors caused by sensor system characteristics; thus, a
dynamic compensation method based on improved particle swarm optimization (PSO)
algorithm is proposed in this paper. This method can effectively overcome the influence
of the initial value derived with PSO algorithm on compensator index. The
distributed algorithm is introduced into the hardware structure design of the
dynamic compensator to facilitate the application of an optimized compensator
to real-time online measurement. This integration realizes the high-speed
parallel of the dynamic compensator of the sensor with field-programmable gate
array. Experimental results show that a high-speed parallel dynamic compensator
can amend the dynamic errors in a sensor accurately and in a timely manner.
Keywords:
dynamic compensation method, improved particle swarm optimized algorithm,
distributed algorithm, FPGA
Author: Wei
Wang
Journal Code: jptkomputergg150165
