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  2. MAP sensor - Wikipedia

    en.wikipedia.org/wiki/MAP_sensor

    MAP sensors measure absolute pressure. Boost sensors or gauges measure the amount of pressure above a set absolute pressure. That set absolute pressure is usually 100 kPa. This is commonly referred to as gauge pressure. Boost pressure is relative to absolute pressure - as one increases or decreases, so does the other.

  3. Glossary of electrical and electronics engineering - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_electrical_and...

    A motor that relies on a component oscillating at an ultrasonic frequency. ultrasonics Term for the field of study pertaining to pressure oscillations in air or other media that are above the range of human hearing. ultrasound Sound having a frequency above the range of normal human hearing. A portmanteau of the former description of ...

  4. Pirani gauge - Wikipedia

    en.wikipedia.org/wiki/Pirani_gauge

    A special form of the Pirani gauge is the pulsed Pirani vacuum gauge where the sensor wire is not operated at a constant temperature, but is cyclically heated up to a certain temperature threshold by an increasing voltage ramp. When the threshold is reached, the heating voltage is switched off and the sensor cools down again.

  5. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    A component of an HVAC system that adds heat to air or an intermediate fluid by burning fuel (natural gas, oil, propane, butane, or other flammable substances) in a heat exchanger. gas furnace heat exchanger A gas furnace heat exchanger is responsible for the transfer of heat from inside the furnace into the air outside the furnace.

  6. Category:Pressure gauges - Wikipedia

    en.wikipedia.org/wiki/Category:Pressure_gauges

    Pages in category "Pressure gauges" The following 23 pages are in this category, out of 23 total. This list may not reflect recent changes. ...

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    Nicotine Replacement Therapy. Among your NRT options are nicotine pouches and patches. Pouches directly supply low doses of nicotine through oral absorption.

  9. Pressure measurement - Wikipedia

    en.wikipedia.org/wiki/Pressure_measurement

    Gauge pressure is zero-referenced against ambient air pressure, so it is equal to absolute pressure minus atmospheric pressure. A tire pressure gauge is an example of gauge pressure measurement; when it indicates zero, then the pressure it is measuring is the same as the ambient pressure.

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