Abstract:
A controller outputs control signals controlling a frequency source to selectively apply different nonzero frequencies of alternating current at different times to an electric sensor within a microfluidic channel.
Abstract:
A microfluidic sensing device comprises a channel and an impedance sensor within the channel. The impedance sensor comprises a local ground and an electrode within the channel. The local ground and the electrode are to form an electric field region that is elongated along the channel.