GeoSpectrum designs and manufactures different families of sound projectors, each suited to a particular frequency range and power output. Unlike hydrophones, which are used over a wide frequency range, a sound projector is almost always used near its fundamental resonance where its power output and electroacoustic efficiency are greatest. GeoSpectrum customizes its sound sources to each customer’s needs. It is able to do this quickly because of its knowledge of what projector type to use, its advanced modelling capability, and its stock of commonly-used ceramics. GeoSpectrum will also perform NIST-traceable acoustic calibrations and provide a certificate of compliance.
Which projector type to use depends on your requirements. The five projector types below cover many requirements, but GeoSpectrum also produces other projector types.