Abstract: A DS sensing apparatus includes a body and electrodes provided on the body. The body defines a test volume between a first surface and an opposing second surface spaced from the first surface a distance that allows a fluid to enter the test volume from a fluid inlet, which is communicatively coupled to the test volume, via capillary action. The electrodes include a first sensing electrode on the first surface and configured to receive an input RF signal, a second sensing electrode on the first surface spaced from the first sensing electrode and configured to deliver an output RF signal and a floating electrode on the second surface.

Abstract: A portable DS device includes a device housing, device-side electrical contacts, a computing system and a removable sensor receiver assembly. The device housing includes a removable sensor receiver compartment. The device-side electrical contacts are positioned in or adjacent to the removable sensor receiver compartment. The computing system is in communication with the device-side electrical contacts and includes an impedance analyzer. The removable sensor receiver assembly includes a removable sensor receiver housing selectively receivable in and removable from the removable sensor receiver compartment. The removable sensor receiver housing includes a fluid sensing apparatus receiving section that receives a fluid sensing apparatus in which a fluid to be tested is loaded.

Abstract: A DS sensing apparatus includes a body and electrodes provided on the body. The body defines a test volume between a first surface and an opposing second surface spaced from the first surface a distance that allows a fluid to enter the test volume from a fluid inlet, which is communicatively coupled to the test volume, via capillary action. The electrodes include a first sensing electrode on the first surface and configured to receive an input RF signal, a second sensing electrode on the first surface spaced from the first sensing electrode and configured to deliver an output RF signal and a floating electrode on the second surface.