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TSD125 SERIES PRECISION FORCE TRANSDUCERS
TSD125 shown with HDW100A
Force transducers are devices capable of transforming a force into a proportional electrical signal. The TSD125
series force transducer elements are cantilever beam load cells incorporating thin-film strain gauges. Because the
strain elements have been photolithographically etched directly on the strain beam, these transducers are rugged
while maintaining low non-linearity and hysteresis. Drift with time and temperature is also minimized, because the
strain elements track extremely well, due to the deposition method and the elements close physical proximity.
Forces are transmitted back to the beam via a self-centering pull-pin to insure accurate force measurements. The
cantilever beam is mounted in a sealed aluminum enclosure that includes a 3/8” diameter mounting rod for holding
the transducer in a large variety of orientations.
TSD125 Series Calibration
The following graphs illustrate actual data taken with the TSD125C (50 gram force transducer) and TSD125F (500
gram force transducer). The force transducers were connected directly to a DA100C amplifier with the excitation set
to ±5 Volts. The DA100C gain was set to 1,000. The RMS noise output was determined by calculating the standard
deviation of the amplified and calibrated signal over a period of time.
The RMS noise of each force transducer was determined in three different settings.
1) Channel 1 RMS Noise at DA100C output
2) Channel 41 RMS Noise after 10Hz Low Pass IIR real time filtering
3) Channel 40 RMS Noise after 1Hz Low Pass IIR real time filtering
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