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Microwave Sensor Applications

For Ironworks – COKE OVEN・CDQ

Microwave Sensor Applications

Coke Oven Profile Sensor
MWS-24RF-3H

THE PROFILE IN THE COKE OVEN CAN BE MEASURED.
UNAFFECTED BY HEAT, FLAMES OR VAPOR.
The MWS-24RF-3H type Range Finder has been developed specifically for measuring the profile of the coke level as it passes through the guide car. The sensor employs the FMCW measurement method and FFT signal processing and consists of a controller, an antenna, a guidepipe and a reflector. The system is installed on the guide car and continuously measures the coke level as the coke is pushed through the guide car.

Features

  • Unaffected by adverse conditions
    Microwaves are unaffected by temperature, flames, vapor, airborne particles or dirt.
    The antenna is separated from the hot coke by an insulating board, making it unaffected by the flames from the coke.
  • High accuracy and reliability
    Stable measurement even when the surface of the coke is sloped.
    Employs the rotary microwave technique in spite of the large frequency sweep: false measurements caused by double-reflected waves are eliminated through the use of rotary microwaves.
    Due to the high S/N ratio, the sensor provides stable measurement even when the reflection from the target [coke] is very weak.
    The adaptation of 24GHz high frequency enables the sensor to use a smaller size antenna and measure in small spaces.
    ±30 mm accuracy on the coke surface.
    Utilizes filters that eliminate spurious signals.
  • High speed response time
    The MWS-24RF-3H responds 4 times faster than WADECO’s standard Microranger, ensuring an accurate profile measurement of the coke as it moves through the guide car.
  • The operational state is shown on your personal computer
    It displays an FFT spectrum, the received signal and various preset values.The received signal, FFT spectrum and the measurement trend are continually displayed. This displayed data can be recorded and reviewed in real or accelerated time.
    Use of the recording and reviewing capabilities allows the system parameters to be optimized offline.
    The display indicates and the controller outputs the internal temperature and any abnormal conditions (i.e. a lowering of received signal power, rising temperature in the controller or communication failures).
  • Convenient built-in functions
    A reference point and the required range are easily preset.
    Compatible for use with a personal computer.
    Power supply range of 90 ~ 240V, 50/60Hz.
    Communicates with a Personal Computer by RS-232C.
    4-20mA, analogue output.
    RS-422 digital output terminals (distance, receiving power level, temperature and alarm).
  • Lightweight and compact
    Portable (controller: approx. 6kg, antenna: approx. 2kg).
    Easy Installation.
  • Easy Maintenance
    Easy maintenance because the reflector and the antenna can be installed in the open space.
For Powder and High Temperature MICRO-RANGER MWS-24RF
catalog (PDF)

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