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传感器

更新时间:2011-11-01  访问统计:4331

speed sensors : type GE12x

 

      
            NORIS A.C. tachogenerators of the Series GE.. are maintenance-free
            speed-measuring devices using permanent-magnet excitation.

            They are designed to provide an A.C. voltage signal that is
            proportional to a speed of their drive shaft. It is possible to use
            either voltage or frequency as the measured variable.

            Tachogenerators are used where a direct supply is desired for
            indicating instruments, monitoring or processing devices. Drive is
            either direct from the take-off shaft by means of couplings or
            indirectly via belt-and-pulley or friction wheel arrangements.
            Tachogenerators are working without operating voltage.

            主要特点
            • Heavy-duty tachogenerator
            • Straightforward application
            • Suitable for extremely rigorous operating conditions
            • NORIS tachogenerators are maintenance-free
            • Rugged construction
            • A.C. voltage output
            • Meets CE requirements
            • Noise-immune signal transmission
            • No radio interference
            • Direct or indirect drive possible
            • Protection class: IP66 (from 3000 rpm up: IP54)
            • Choice of mechanical connections for speed sensing
            • Flanges and brackets available for mounting
            • Suitable evaluation devices available

            GENERAL NOTES ON TYPE GE120-.., GE121-.., GE122-..
            Method of operation
            The drive shaft rotates a permanent magnet in a stationary conductor
            and induces a voltage in the latter whose amount and frequency are
            proportional to the speed of the drive shaft. The GE12x-.. is of 12
            the pole type having 6 pairs of poles so that the frequency of the
            alternating voltage is 1/10 of the input speed.

            Details
            • There are three speed-range variants available of this series:
            • GE120 for full-scale speed range 60 ... 1,000 rpm
            • GE121 for full-scale speed range 150 ... 2,500 rpm
            • GE122 for full-scale speed range 500 ... 6,000 rpm
            • Electrical termination by screw terminals
            • Output is an approximately sinusoidal A.C. voltage
            • High electric output for multiple indicator operation
            • Extremely long life through extra-sturdy suspension of drive shaft
            • Direct drive possible via fl exible couplings
            • Indirect drive possible via V-belt pulleys or friction wheels
            • Wheels or pulleys can be mounted directly on the shaft
            • Extremely high protection class (up to 3,000 rpm) and rugged
            construction

End

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