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2. Pressure measurement - Wikipedia

   en.wikipedia.org/wiki/Pressure_measurement

   Checking tire pressure with a spring and piston tire-pressure gauge. Pressure measurement is the measurement of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area. Many techniques have been developed for the measurement of pressure and vacuum.

3. Bar (unit) - Wikipedia

   en.wikipedia.org/wiki/Bar_(unit)

   The bar is a metric unit of pressure defined as 100,000 Pa (100 kPa), though not part of the International System of Units (SI). A pressure of 1 bar is slightly less than the current average atmospheric pressure on Earth at sea level (approximately 1.013 bar). [1][2] By the barometric formula, 1 bar is roughly the atmospheric pressure on Earth ...

4. Tire-pressure gauge - Wikipedia

   en.wikipedia.org/wiki/Tire-pressure_gauge

   Tire-pressure gauge. A tire-pressure gauge, or tyre-pressure gauge, is a pressure gauge used to measure the pressure of tires on a vehicle. Proper tire pressure is crucial for vehicle safety, fuel efficiency, and tire longevity. Tire gauges come in various types, including analog, digital, and dial gauges, each offering different features and ...

5. Barometer - Wikipedia

   en.wikipedia.org/wiki/Barometer

   Barometer. A barometer is a scientific instrument that is used to measure air pressure in a certain environment. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, pressure systems and frontal boundaries.

6. Pirani gauge - Wikipedia

   en.wikipedia.org/wiki/Pirani_gauge

   Pirani gauge. The Pirani gauge is a robust thermal conductivity gauge used for the measurement of the pressures in vacuum systems. [1] It was invented in 1906 by Marcello Pirani. [2] Marcello Stefano Pirani was a German physicist working for Siemens & Halske which was involved in the vacuum lamp industry. In 1905 their product was tantalum ...

7. Tire-pressure monitoring system - Wikipedia

   en.wikipedia.org/wiki/Tire-pressure_monitoring...

   A tire-pressure monitoring system (TPMS) monitors the air pressure inside the pneumatic tires on vehicles. [1] A TPMS reports real-time tire-pressure information to the driver, using either a gauge, a pictogram display, or a simple low-pressure warning light. TPMS can be divided into two different types – direct (dTPMS) and indirect (iTPMS).