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Could RFID Monitor Current Variation?
I have a galvanic cell that produces a time-dependent current output. Could I use passive RFID technology to monitor this variation?
Spanish RFID company Farsens makes a battery-free RFID voltage sensor (see RFID News Roundup: Farsens Unveils Battery-Free RFID Voltage-Level Monitoring Tag). The VMETER-DCLV10 can measure voltages ranging from 0 volts to 1.5 volts, with an adjustable gain of 1 to 1,000. If the output of your galvanic cell is less than 1.5 volts, the Farsens sensor might work for you. If the output is higher, I am unsure whether an RFID solution would meet your needs.
—Mark Roberti, Founder and Editor, RFID Journal
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