Radar level/distance/speed measurement at 76 (94) GHz

• • Narrow beam
  • Penetration through dust and fog/smog

• • Distance operation up 500 m
  • High resolution

• Nickel, Gold, Coil and other mines
• Cement and other dusty manufactories
• Ground control in airports and other facilities
• Avoid collision systems, for example for Railways

The Distance Sensor is based on millimeter wave FMCW (frequency-modulated continuous wave) radar principles. It is free from laser, acoustic, and microwave radar shortcomings. It is characterized by a narrow beam that is good for enclosed areas like ore passes, because of 76 GHz (94 GHz) FMCW radar operational frequency that is equivalent to 3-4 mm wave length, the sensor provides an excellent penetration of dust and water vapour. The Distance Sensor works well even with a dust sticking on antenna. With a narrow beam, the Distance Sensor can build a precise surface profile at a hopper (mechanical scanning required). The operation range of Distance Sensor is 500 m, that allowing using it at deep mines, where typical passes are up to 300m but rarely even longer.

To facilitate installation, mounting and alignment at field condition, the sensor is built as two modules; a front end and a separate signal processor connected by a shielded cable. A local graphics display and keypad are incorporated into the control unit. The front end and antenna are housed in robust metal case. The signal processor and power supplies are built into a commercially available housing with signal access via cable glands.

To use Distance Sensor within complete data acquisition system on an enterprise, the sensor has
RS-485 interface using MODBUS protocol RJ-45 socket made in dust and moisture-proof embodiment. The radar transmitter at the Distance Sensor complies with international safety regulations. Please, see realized installations.