G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 13/58 (2006.01) G01F 1/86 (2006.01)
Patent
CA 2546634
A meter (10) is provided for measuring a velocity of a metallic strip or band (30) moving along a straight path (26). The meter (10) includes an antenna positioned at a location along the path (32)) pointing towards the strip edge at an oblique angle, and a transceiver electrically connected to the antenna. The transceiver transmits, in conjunction with the antenna, a field of electromagnetic energy of known magnitude and frequency and receives reflected electromagnetic energy from material (35) crossing the field to produce a signal related to the magnitude and the Doppler-shifted frequency of the reflected electromagnetic energy. The meter (10) also includes an amplifier coupled to the transceiver, a control unit for calibration, and a central processing unit. The central processing unit generates an output signal (4-20mA current loop or voltage output) based upon data received from the control unit and a signal received from the amplifier, proportional to the measured strip velocity.
Bleszynski Stan
Na
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