Length of time to measure the skin resistance is determined by R5, C2 and C3. Until such time elapses, the lie detector gives no indication although diodes D1 and D3 provide a rapid response of the ...

Smoke detector with gas sensor TGS 813 – source. The simple schematic diagram of a smoke detector presented here utilizes the gas sensor TGS 813 as the main detecting component. The circuit is pretty ...

The threshold detector’s output current is less than 100 nA when In– exceeds In+ and is 1 mA when In+ exceeds In–. The input-to-output response time is typically less than 100 ns, even with ...

Engineers have crafted the world's highest-frequency circuit made with a common type of semiconductor transistor, a step that could slash the price of detectors useful in earlier cancer detection ...

Detector design and device fabrication. In order to combine diamond nanophotonic circuits with superconducting single-photon detectors, we fabricate niobium nitride (NbN) nanowires directly on top ...