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  2. Oxygen sensor - Wikipedia

    en.wikipedia.org/wiki/Oxygen_sensor

    The type of oxygen sensor used in most underwater diving applications is the electro-galvanic oxygen sensor, a type of fuel cell, which is sometimes called an oxygen analyser or ppO 2 meter. They are used to measure the oxygen concentration of breathing gas mixes such as nitrox and trimix . [ 9 ]

  3. Electro-galvanic oxygen sensor - Wikipedia

    en.wikipedia.org/wiki/Electro-galvanic_oxygen_sensor

    Electro-galvanic fuel cell as used in a diving rebreather to measure the partial pressure of oxygen. Two oxygen cells as used by oxygen analysers for diving gas showing commonly used connectors. An electro-galvanic fuel cell is an electrochemical device which consumes a fuel to produce an electrical output by a chemical reaction.

  4. OBD-II PIDs - Wikipedia

    en.wikipedia.org/wiki/OBD-II_PIDs

    Oxygen Sensor 5 A: Voltage B: Short term fuel trim 19: 25: 2 Oxygen Sensor 6 A: Voltage B: Short term fuel trim 1A: 26: 2 Oxygen Sensor 7 A: Voltage B: Short term fuel trim 1B: 27: 2 Oxygen Sensor 8 A: Voltage B: Short term fuel trim 1C: 28: 1 OBD standards this vehicle conforms to 1 250 enumerated. See below: 1D: 29: 1 Oxygen sensors present ...

  5. Normalized frequency (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Normalized_frequency...

    The normalized quantity, ′ =, has the unit cycle per sample regardless of whether the original signal is a function of time or distance. For example, when f {\displaystyle f} is expressed in Hz ( cycles per second ), f s {\displaystyle f_{s}} is expressed in samples per second .

  6. Oxygen transmission rate - Wikipedia

    en.wikipedia.org/wiki/Oxygen_transmission_rate

    Oxygen transmission rate (OTR) is the measurement of the amount of oxygen gas that passes through a substance over a given period. It is mostly carried out on non-porous materials, where the mode of transport is diffusion, but there are a growing number of applications where the transmission rate also depends on flow through apertures of some description.

  7. Cycle per second - Wikipedia

    en.wikipedia.org/wiki/Cycle_per_second

    The cycle per second is a once-common English name for the unit of frequency now known as the hertz (Hz). Cycles per second may be denoted by c.p.s., c/s, or, ambiguously, just "cycles" (Cyc., Cy., C, or c). The term comes from repetitive phenomena such as sound waves having a frequency measurable as a number of oscillations, or cycles, per ...

  8. Pirani gauge - Wikipedia

    en.wikipedia.org/wiki/Pirani_gauge

    A heated metal wire (sensor wire, or simply sensor) suspended in a gas will lose heat to the gas as its molecules collide with the wire and remove heat. If the gas pressure is reduced, the number of molecules present will fall proportionately and the wire will lose heat more slowly. Measuring the heat loss is an indirect indication of pressure.

  9. Mass flow sensor - Wikipedia

    en.wikipedia.org/wiki/Mass_flow_sensor

    A mass (air) flow sensor (MAF) is a sensor used to determine the mass flow rate of air entering a fuel-injected internal combustion engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine. Air changes its density with temperature and pressure.