Patent ID: 7911876

Claim:
A method for processing transducer signals in a well logging tool, comprising the steps of: operating a multi-element piezoelectric receiving transducer in the logging tool, configured to provide a plurality of m receiver channels, wherein each element of the receiving transducer is operating in an anti-resonant mode at a frequency below the resonant frequency thereof; initializing the input of each of the m receiver channels to a quiescent reference value corresponding to absence of a transmitted excitation signal; calibrating each of the plurality of m receiver channels of the receiving transducer, while operating the receiving transducer in the anti-resonant mode, to obtain and store a set of digitized gain factors Fc for each receiver channel in memory in the tool; and normalizing the output signals from the m receiver channels while operating the receiving transducer of the logging tool in an anti-resonant mode during a logging operation down hole to produce output signals from each of the plurality of m receiver channels.