> Synchronous voltage pulses are sent to both the electrode of the strip connecting to the gate and drain electrodes of the MOSFET. The drain pulse is applied for around 1.1 ms at a constant voltage. The gate pulse starts at 40 μs after the drain pulse and ends at 40 μs before the end of the drain pulse.
> the antigen-antibody complexes undergo stretching and contracting, akin to double springs, in response to a pulsed gate electric field. This motion across the antibody-antigen structure, corresponding to the pulse voltage applied on the test strip, induces an alteration in the protein's conformation, resulting in a time-dependent electric field applied to the MOSFET gate. Consequently, a springlike pattern emerges in the drain voltage waveform due to the external connection between the sensor strip and the MOSFET's gate electrode.
So they shake ‘em just so, and listen to the response…
ICs are perhaps variable timing & pulse-shaping logic?
> Synchronous voltage pulses are sent to both the electrode of the strip connecting to the gate and drain electrodes of the MOSFET. The drain pulse is applied for around 1.1 ms at a constant voltage. The gate pulse starts at 40 μs after the drain pulse and ends at 40 μs before the end of the drain pulse.
> the antigen-antibody complexes undergo stretching and contracting, akin to double springs, in response to a pulsed gate electric field. This motion across the antibody-antigen structure, corresponding to the pulse voltage applied on the test strip, induces an alteration in the protein's conformation, resulting in a time-dependent electric field applied to the MOSFET gate. Consequently, a springlike pattern emerges in the drain voltage waveform due to the external connection between the sensor strip and the MOSFET's gate electrode.
So they shake ‘em just so, and listen to the response…
ICs are perhaps variable timing & pulse-shaping logic?