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OCEANSCAN MULTI-RETURN ALTIMETERS
OCEANSCAN MULTI-RETURN ALTIMETERS
The Oceanscan Multi-Return Altimeter fulfills many of the sonar data capture requirements of the oceanographic and scientific communities. This unit differs from most Altimeters of the “first-return” type by digitising the receiver output at high speed into a FIFO memory.The range to the sea-bed is then calculated in the digital domain by the mathematical processing algorithm programmed into the internal RISC microcontroller.
The sampling parameters of the M-R Type are set-up prior to the unit being deployed by linking the unit to a P.C. via an RS232 cable. The parameters are stored internally in the microcontrollers FLASH memory without any power required.
The analogue output is generated from a 12-bit digital to analogue converter and may be software selected for either 5v or 10v full-scale.The digital data to 1mm resolution is available from both RS232 and RS485 outputs. Whilst cable connected to a P.C. the Altimeter can uplink the raw FIFO data in the same manner as an imaging sonar as shown in the inset pictures.
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