MIDAS Surveyor GPS Echosounder For Marine

GPS Echosounder For Marine

MIDAS Surveyor GPS Echosounder For Marine

The MIDAS Surveyor has been designed to offer a low cost solution for small scale hydrographic surveys.

The system is supplied with a 210kHz transducer as standard, and uses Valeport’s own advanced digital signal processing techniques to ensure high accuracy and reliable bottom tracking. With an integral SBAS enabled DGPS receiver, the MIDAS Surveyor will log position and depth data for over 30 hours, as well as performing on-line correction using external heave and tide data inputs.

Options include an additional 33kHz transducer, or high accuracy 16 channel DGPS receiver.

The MIDAS Surveyor is a revolution in small boat survey work. With an integral GPS receiver and Valeport’s unique “fuzzy logic” digital echo sounding technology, the Surveyor is quick to deploy, rugged and reliable, and boasts many features to make your work as easy as possible.

Valeport also offers a range of tide gauge & sound velocity products to compliment the Surveyor – see the separate brochures.

MIDAS Surveyor GPS Echosounder For Marine
MIDAS Surveyor GPS Echosounder For Marine

Echo Sounder

Single (210kHz) or dual (210 / 33kHz) channel input, using unique “fuzzy logic” DSP to give accurate readings and reliable performance, even in shallow water. Data may be logged and output either raw (as measured) or corrected for tide and heave.

 Range : 0.3 – 100m (210kHz), 1.8 – 100m (33kHz)
Accuracy : greater of ±0.01m or ±0.02%
Resolution : 0.01m (210kHz), 0.04m (33kHz)
Sample Rate : 6Hz

Position

MIDAS Surveyor logs and displays DGPS position data in WGS84 or Local Grid. User has full control over spheroid and projection constants for Local Grid setup.

Standard : Integral 12 channel GPS/SBAS receiver with
combined antenna :± 4m (CEP), with no correction
± 2m (CEP), with SBAS correction
Option : Surveyor also accepts user’s own differential
GPS or RTK data input.

Other Inputs

The Surveyor will accept data input from all the additional sensors listed below. All data may be logged and output in real time on a single RS232 channel, and tide & heave data may be used to provide real time corrections to depth data.

Tide : RS232 text data from tide gauge or RTK.
Heave : RS232 data from heave sensor (up to 60Hz).
Sound Speed : Continuous or spot readings from Valeport Sound Velocity Sensors may also be logged.
Gyro/Auxiliary : RS232 input of vessel heading or any other text string may be logged with the survey data.
Event Marker : Surveyor is supplied with remote event marker.

Data Outputs

Real Time RS232 output on a single channel of any, some or all of the active data inputs, in choice of industry standard formats.

Memory

16Mb internal FLASH memory provides nominal 32 hours of data logging. An optional 32Mbyte memory is available at time of order.

Data Display

240 x 128 pixel graphics LCD display, providing numerical and graphical depth display, position data (WGS84 or Local Grid) and all other incoming parameters. On screen help and simple menu-driven setup functions allow full system control.

Electrical

Internal : 8.4Ah sealed lead acid battery pack
External : 12 – 24V DC
Power : 3W (sampling), 25W (max when recharging)
Battery Life : Nominal 24hours working time
(Recharge using external power)
Connector : Fischer

Software

Surveyor is supplied with SurveyLog, a Windows based software package, allowing data extraction & display. All data is presented in ASCII format, and may easily be exported for use in industry standard hydrographic survey software packages, or simple XYZ format data.

Physical

Surveyor : Rugged IP67 case, 35 x 33 x 16cm, 9kg
Accessories : IP67 case, 41 x 33 x 18cm, 9kg
Dual Tdx : Combined 210/33kHz, 30 x 30 x 10cm, 12kg
Shipping : 62 x 44 x 38cm, 18kg (basic set)

Ordering

Basic

0420001 MIDAS Surveyor logging unit with 16Mb memory
 Internal battery pack and DC power lead
 RS232 output lead,
 Event marker
 Operating manual & SurveyLog software
0420002 210kHz transducer
10m cable and mounting spigot
0420005 Integral 12 channel GPS/SBAS receiver
Antenna, 5m cable and mounting spigot.

Options

0420003 33kHz transducer
10m cable and mounting spar
0420004 33/210kHz transducer
10m cable and mounting spar
0420EA12 RS232 input lead for external data input
(tide, heave etc.)
0420EA13 RS232 output cable
0420EA1 AC/DC adaptor
0420009 Memory upgrade to 32Mbyte

Read more : MIDAS BathyPack Bathymetry Package; CTD and Multiparameter Instruments; Current Meters And Open Channel Meters; Model 803 ROV Electromagnetic Current Meter; MIDAS ECM Self Recording Electromagnetic Current Meter

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