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2. Ruby pressure scale - Wikipedia

   en.wikipedia.org/wiki/Ruby_Pressure_Scale

   Ruby spectra R1, R2 lines. The ruby fluorescence pressure scale is an optical method to measure pressure within a sample chamber of a diamond anvil cell apparatus. [1] Since it is an optical method, which fully make use of the transparency of diamond anvils and only requires an access to a small scale laser generator, it has become the most prevalent pressure gauge method in high pressure ...

3. Continuous emissions monitoring system - Wikipedia

   en.wikipedia.org/wiki/Continuous_emissions...

   2 emissions are measured in pounds per hour using both an SO 2 pollutant concentration monitor and a volumetric flow monitor. For NO x, both a NO x pollutant concentration monitor and a diluent gas monitor are used to determine the emissions rate in weight per volume or weight per heat value (for example lbs/million Btu, lbs/ft 3, kg/kWh or kg ...

4. OBD-II PIDs - Wikipedia

   en.wikipedia.org/wiki/OBD-II_PIDs

   Fuel pressure control system 6E: 110: 9 Injection pressure control system 6F: 111: 3 Turbocharger compressor inlet pressure 70: 112: 10 Boost pressure control 71: 113: 6 Variable Geometry turbo (VGT) control 72: 114: 5 Wastegate control 73: 115: 5 Exhaust pressure 74: 116: 5 Turbocharger RPM 75: 117: 7 Turbocharger temperature 76: 118: 7 ...

5. Budenberg Gauge Company - Wikipedia

   en.wikipedia.org/wiki/Budenberg_Gauge_Company

   Two years later a third factory was opened in Amlwch, Anglesey. Budenberg Gauge remained a family-owned company from its inception in 1850 until 1991 when it was sold to Burnfield plc. In 2002 the company vacated its historic Broadheath factory and moved to Irlam, where it continued to manufacture pressure gauges and accessories until 2020. In ...

6. Hot-filament ionization gauge - Wikipedia

   en.wikipedia.org/wiki/Hot-filament_ionization_gauge

   The low-pressure sensitivity of hot-cathode gauges is limited by the photoelectric effect. Electrons hitting the grid produce X-rays that produce photoelectric noise in the ion collector. This limits the range of older hot-cathode gauges to 10 −8 Torr and the Bayard–Alpert gauges to about 10 −10 Torr. Additional wires at cathode potential ...

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