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  2. Thermopile - Wikipedia

    en.wikipedia.org/wiki/Thermopile

    Voltage output is passively induced from the thermopile proportional to the heat flux through the sensor or similarly the temperature difference across the thin-film substrate and number of thermocouple junction pairs. This voltage output from the sensor's thermopile is initially calibrated in order to relate it to heat flux.

  3. htop - Wikipedia

    en.wikipedia.org/wiki/Htop

    htop is an interactive system monitor process viewer and process manager. It is designed as an alternative to the Unix program top . It shows a frequently updated list of the processes running on a computer, normally ordered by the amount of CPU usage.

  4. Readout integrated circuit - Wikipedia

    en.wikipedia.org/wiki/Readout_integrated_circuit

    Conventional ROIC technology stores the signal charge at each pixel and then routes the signal onto output taps for readout. This requires storing large signal charge at each pixel site and maintaining signal-to-noise ratio (or dynamic range) as the signal is read out and digitized.

  5. Heat flux sensor - Wikipedia

    en.wikipedia.org/wiki/Heat_flux_sensor

    Where is the sensor output and is the calibration constant, specific for the sensor. General characteristics of a heat flux sensor As shown before in the figure to the left, heat flux sensors generally have the shape of a flat plate and a sensitivity in the direction perpendicular to the sensor surface.

  6. Sensitivity (electronics) - Wikipedia

    en.wikipedia.org/wiki/Sensitivity_(electronics)

    The output signal for an electronic analog sensor is usually a voltage or a current signal . The responsivity of an ideal linear sensor in the absence of noise is defined as R = S o / S i {\textstyle R=S_{o}/S_{i}} , whereas for nonlinear sensors it is defined as the local slope d S o / d S i {\displaystyle \mathrm {d} S_{o}/\mathrm {d} S_{i}} .

  7. Signal conditioning - Wikipedia

    en.wikipedia.org/wiki/Signal_conditioning

    Some sensors require external voltage or current source of excitation, These sensors are called active sensors. (E.g. a temperature sensor like a thermistor & RTD, a pressure sensor (piezo-resistive and capacitive), etc.). The stability and precision of the excitation signal directly relates to the sensor accuracy and stability.

  8. Uptime - Wikipedia

    en.wikipedia.org/wiki/Uptime

    Htop adds an exclamation mark when uptime is longer than 100 days. It is often used as a measure of computer operating system reliability or stability, in that this time represents the time a computer can be left unattended without crashing or needing to be rebooted for administrative or maintenance purposes.

  9. Output signal switching device - Wikipedia

    en.wikipedia.org/wiki/Output_Signal_Switching_Device

    The device usually acts as the interface of a sensor (such as a light curtain), designed to signal a safety-related event, typically when the light curtain beam's being "broken". OSSD signals are the outputs from the protective device (light curtain or scanner) to a safety relay .