Load cells forming one or more weighing scales are connected to each other and
to a common concentrator which communicates to a master controller in the control
house via RF wireless communication. The load cells are polled by and provide weight
reading to concentrator to the master controller. A digital load cell is used which
includes a rocker pin, guided beam, torsion ring or other counterforce, a circuit
board mounted on the counterforce and an enclosure sealing the circuit board and
all but the load bearing surfaces of the counterforce and a mounded antenna. The
circuit board includes a microcomputer and a transceiver. RF communication is provided
with the circuit board through a antenna mounted on the enclosure. One or a number
of load cells may be connected to a computer or controller to form one or more
weighing scales with one or more weighing scales connect to a control house through
wireless RF communication. The preferred embodiment uses passive receivers for
receiving the signals and waveguide to minimize power requirements.
