Complementary metal-oxide semiconductor xylophone bar magnetometer with automatic resonance control
AssigneeThe Johns Hopkins University
InventorsEli A. Richards, Dennis K. Wickenden
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Abstract
Provided herein is a xylophone bar magnetometer (XBM) with automatic resonance control, the XBM having a voltage input, a current drive input and a sensor output, having a voltage input switch for switching between a positive drive voltage and a negative drive voltage; a voltage controlled oscillator (VCO) for controlling the voltage input switch; and a feedback loop, connected between the sensor output and a input of the VCO.
Claims10
A resonance control for a xylophone bar magnetometer (XBM) having a stationary part and a vibrational part, said XBM having a voltage input, a current drive input and a sensor output, comprising:
- a voltage input switch for switching between a positive drive voltage and a negative drive voltage;
- a voltage controlled oscillator (VCO) for controlling the voltage input switch;
- and
- a feedback loop, connected between the sensor output and an input of the VCO.
Dependencies are inferred from the claim text.