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US 2017/0363724 A1Published application
Aspects of sonar systems or other acoustic imaging systems
AssigneeSezanne Marine Limited
InventorCeri Reid
Life of this patent
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Abstract
A sonar transmit array (11), comprising: a plurality of transmitters configured to generate an acoustic sonar signal, wherein at least one of the transmitters is a polyvinylidene difluoride, PVDF, piezoelectric device configured to generate at least part of the acoustic sonar signal. Some embodiments, include a receive array (12) and the associated receive array circuitry (14).
Claims21
-44. (canceled)
Receive array circuitry for an acoustic imaging system, comprising:
- a plurality of inputs, each input being configured to receive an analogue signal from a receiver of an acoustic imaging receive array;
- an analogue-to-digital converter configured to sample and convert analogue signals into corresponding digital signals;
- and
- beamforming circuitry configured to receive the digital signals from the analogue to digital converter and to generate an acoustic image from the digital signals, wherein the analogue-to-digital converter is configured to sample the analogue signals at a sample rate which is determined based on a predetermined required bandwidth of the analogue signal.
1 more element
An acoustic imaging system, comprising:
- receive array circuitry, and
- a receive array, wherein the receive array circuitry comprises:
- a plurality of inputs, each input being configured to receive an analogue signal from a receiver of the receive array;
- an analogue-to-digital converter configured to sample and convert analogue signals into corresponding digital signals;
- and
- beamforming circuitry configured to receive the digital signals from the analogue to digital converter and to generate an acoustic image from the digital signals, wherein the analogue-to-digital converter is configured to sample the analogue signals at a sample rate which is determined based on a predetermined required bandwidth of the analogue signal.
3 more elements
An acoustic imaging system, comprising:
- transmitter drive circuitry configured to drive the operation of an acoustic imaging transmit array;
- receive array circuitry configured to receive one or more signals from an acoustic imaging receive array, wherein the receive array circuitry includes one or more isolation switch devices which are each configured to disconnect the receive array circuitry from the acoustic imaging receive array selectively dependent on an operating state of the transmitter drive circuitry.
Dependencies are inferred from the claim text.