ESR Probe

The ESR probe has a small coil on one end in which a sample of DPTH is placed. A radio frequency signal generated by the probe supplies the oscillating magnetic field. Absorption of energy from the field changes the effective impedance of the coil and can be detected using a dual trace oscilloscope. The characteristic waveform is shown in the ESR Manual. The drive frequency can be read (in MHz) from the LED display on the main unit.
 

1999-09-14