New collaboration project application from PTB with GAMPT on hydrophones with integrated deconvolution algorithm (HIDecon)
According to IEC 62127-1:2022, the frequency response of hydrophones must be compensated for by numerical impulse deconvolution in broadband ultrasonic pressure measurements. To date, measurement laboratories have been slow to implement this requirement. The aim is to significantly simplify the process for the user and thereby increase acceptance by integrating a deconvolution algorithm, in the form of a digital filter, directly into the hydrophone, or into an additional box between hydrophone and voltage acquisition device. A microprocessor is to be used to perform the filtering in real time according to the calibration data supplied. An interface is to enable the digital filter to be updated in accordance with recalibration data, for instance from a digital calibration certificate. This methodology offers several clear advantages, such as simpler and less error-prone data evaluation for the user, easier auditing of measurement laboratories as no in-house software development is required, more stable measurement results and a reduction of measurement uncertainties. A research funding application was recently submitted within the Horizon Europe Marie Sklodowska-Cure Actions programme.
