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Jun

13

The advantage of oil-filling piezoresistive pressure transducer The advantage of oil-filling piezoresistive pressure transducer 1, The chip is protected against ambient influences(dust,Acid,Alkali) by a stainless steel housing sealed with a concentrically corrugated diaphragm which is filled with silicone oil. 2, silicone oil have the good performance of transmit the pressure 3, the silicon chip can be exposed to the medium if it is clean and non-pollution(without oil filling) Read More >>

Jun

04

Pressure measurement glossary-Accuracy and Precision Does Precision mean the same as Accuracy for Pressure Measurement Devices? In the context of a pressure measurement device, precision refers to how well it provides repeatable and linear results with increasing or decreasing pressure over many cycles. It is therefore an indication of the quality of measurement technology utilised and is a major factor effecting the cost of an instrument. Read More >>

May

09

Pressure measurement glossary-pressure unit(Bar, KPa, MPa, mbar) Bar - is a widely used metric unit of measure for pressure and 1 bar converts precisely to 100,000 Pascals. KPa - is a 1000x multiple of the Pascal unit which is the SI unit for pressure. 1 Kilopascal equals 1,000 Pascals. MPa - is a 1000000x multiple of the Pascal unit which is the SI unit for pressure. 1 Megapascal equals 1,000,000 Pascals. Read More >>

Mar

28

Temperature characteristics and Linearity for pressure sensors Temperature characteristics This represents the fluctuation of the detecting point within the ambient temperature range. Linearity Analog output voltage from a pressure sensor increases in proportion to pressure. Ideally, the relationship between analog output voltage and pressure would be represented by a straight line. However, actual measurement deviates from this ideal line. Linearity refers to the maximum amount the actual measurement can be expected to deviate from the ideal analog output voltage measurement and is indicated as a percentage of full scale (F.S.) Read More >>

Mar

24

Withstanding pressure, Repeatability, and Response time Withstanding pressure The withstanding pressure or “Proof Pressure” is the maximum pressure that can be applied to the pressure sensor. Applying pressure exceeding this value will cause the pressure sensitive element to lose its repeatability or to be damaged. Repeatability This represents the detecting point tolerance range when pressure is repeatedly applied under set conditions. Read More >>

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