Radac BV

- Comparison Directional Wave Radar system

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With an array of three radars the elevations of the sea surface is measured at three positions. Knowing the slopes and the phase relations, the directional spectrum can be accurately calculated. Radac is the only company that brings this technology to the market. The directional system consists of three downward-pointing radars. Depending on the set-up, all are perpendicularly pointed downwards or one/two are tilted. We recommend the one-point array (3) for most applications. All three radars are mounted in the one-point frame. One radar points downwards, and the other two are tilted under an angle of 15 degrees.

Wavelengths are optimally monitored with 3 to 30 times the array size. For example, if the wave radar system is mounted at a 18.6 m height, the footprints of the radars are five meters apart. So the optimal measurements are between 15m and 150m wave length (3-10 sec period).

Other, less used options are the three-point array (1) with three downward pointing radars and the line array (2) with one radar is tilted.

  • WaveGuide Direction
  • WaveGuide Direction Ex

  • No maintenance
  • Easy installation
  • Suitable for all weather conditions
  • Low power consumption device
  • Explosion-proof certified (optional)
  • Excellent price/performance ratio

  • Wave direction
  • Wave height
  • Wave period
  • Water level / tide

  • Offshore oil and gas platforms
  • Offshore wind parks and platforms
  • Harbour and coast water monitoring
  • Input to Met-Ocean systems

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Remote monitoring of wave direction, wave height, wave period and tide
The Radac WaveGuide Direction is an accurate radar system incorporating advanced technologies that make it an easy to use, reliable and robust device to measure tide, wave direction, wave height and wave period. This system is recommended for use in harsh environmental conditions and is particularly suited to marine and offshore installations.

Key features

  • 0 - 360º wave direction
  • 0 - 60 m wave height
  • Maintenance free
  • Re-calibration is not required
  • Remote service facilities
  • Explosion-proof certified (optional)

With an array of three radars the elevations of the sea surface is measured at three positions. Knowing the slopes and the phase relations, the directional spectrum can be accurately calculated.

The directional system consists of three downward-pointing radars.

Depending on the set-up, all are perpendicularly pointed downwards or one/two are tilted.
The radars measure the distance to the water surface several times per second. In all wind and wave conditions the accuracy for water level is proven to be below 1 cm. The wave data are sent to the server via a serial link (RS485). The server facilitates remote servicing, data collecting, data processing and presentation. Data can be distributed through two serial ports as well as via a network. Any device connected to the (private) network can access the web-server.

  • Heave Range: 2 - 75 m
  • Accuracy: ± 3 mm 1)
  • Interval: 5 Hz
  • Water level Range: 2 - 75 m
  • Accuracy: ± 1 cm 2)
  • Processing: 10 min average (optional 10 s, 1 min and 5 min)
  • Interval: 1 min (optional 10 s)
  • Wave height Range: 0-60 m
  • Accuracy: ± 1 cm 3)
  • Processing: SWAP 4)
  • Interval: 1 min
  • Wave period Range: 1 - 100 s
  • Accuracy: ± 50 ms 3)
  • Processing: SWAP 4)
  • Interval: 1 min
  • Wave direction Range: 0 - 360º
  • Accuracy: ± 2º 3)
  • Processing: SWAP 4)
  • Interval: 1 min

WaveGuide radar (x3)

  • Mechanical Dimensions: Ø 26.5 x 25.5 cm
  • Weight: 11.8 kg
  • Material: Stainless steel
  • Electrical Power: 24 - 64 VDC, 6 W
  • Frequency: 10 GHz
  • Modulation: Triangular FMCW 256 MHz
  • Emission: 0.1 mW max. Far below acceptable limits for exposure to the human body.
  • Environmental Temperature: - 40 ºC to 60 ºC
  • Humidity: 0 - 100 %
  • Ingress Protection: IP67

Optional: WaveGuide Ex certified radar (x3)

  • Mechanical Dimensions: 26.5 x 25.5 x 43.5 cm (D x W x H)
  • Weight: 13.6 kg (incl. antenna 2.86 kg)
  • Material: Chromatized aluminum
  • Electrical Power: 24 - 64 VDC, 6 Watt
  • Frequency: 10 GHz
  • Modulation: Triangular FMCW 256 MHz
  • Emission: 0.1 mWatt max. Far below acceptable limits for exposure of the human body
  • Environmental Temperature: - 40 ºC to 60 ºC
  • Humidity: 0 - 100 %
  • Ingress Protection: IP67
  • Safety: ATEX II ½ GD T80 ºC Eex d IIB T4 Class I, Division 1, Groups C and D, acc. To ANSI/NFPA 70 (FM,CSA)

WaveGuide server

  • Dimensions: 19’’ (48 x 8.9 x 28 cm)
  • Computer: AAEON, GENE-TC05 (Intel Atom E620T 600 MHz)
  • COM ports: 1x RS485 (communication with radars) + 3x RS232
  • Network: 1x Ethernet
  • USB: 1x USB 2.0 to connect a hard disk
  • Power: 9 - 36 VDC, 10 W (24 - 36 VDC, 28 W if radars are powered via server)
  • Temperature: - 40 ºC to 85 ºC
  • Cooling: No fan required

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