A Wireless, Passive, Magnetically-soft Harmonic Sensor for Monitoring Sodium Hypochlorite Concentrations in Water
A wireless, passive, remote-query sensor for monitoring sodium hypochlorite (bleach) solutions is reported.The sensor is comprised of a magnetically-soft ferromagnetic ribbon, coated with a layer gibson sg fireburst of polyurethane and alumina, having a large and nonlinear permeability that supports higher-order harmonics in response to a time vary