The new Hydroacoustic Low Frequency (HLF) family of underwater acoustic sources specializes in generating high acoustic output at very low frequencies.
Each size is highly customizable in frequency range and power level to offer a perfect match for mission requirements. The HLF family is based on five decades of experience in military and commercial applications.
HLF acoustic sources can transmit arbitrary waveforms, such as simple sinusoidal tones, data-encoded sequences, or band-limited noise. The nominal frequency bandwidth is approximately two octaves above and below the resonant frequency, and all configurations can be operated from below 1Hz to above 1kHz.
The acoustic source can be delivered with a protective deployment frame for stationary or moored applications, or a rugged tow frame capable of withstanding rough sea conditions for reliable operation at up to 10 knots.
The HLF requires no pressure compensation to achieve the rated maximum operating depth and exhibits minimal change in performance with depth. A passive pressure compensation system can be used to achieve operating depths up to 5,000 feet.
For decades, HAI transducers have been used in the world’s oceans including the ice-capped poles, for both scientific research and naval missions.
The HLF power amplifier
Contained within the acoustic source, freeing up valuable space in the control room. The standard electronics package consists of a rack-mounted interface box, computer, and KVM, totaling 6U of 19” rack space, plus a small contactor box for switching the acoustic source on and off.
The supplied monitoring software displays system health and performance data, including a calibrated reference acoustic output signal.
