Bourdon tubes

Overview of pressure measurement

Pressure Transmitters Pressure is one of the most common properties to detect. We frequently sense differential pressure to determine fluid flow, liquid level, and equipment performance. Pressure transmitters can be designed to measure absolute pressure or gauge pressure. All sensors will sense pressure above atmospheric. Most, but not all, will measure pressure below atmospheric (a partial …

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High-Pressure Sensors

Introduction  For the purposes of this section, we will define high-pressure instruments as devices that are capable of measuring pressures in excess of 10,000 to 20,000 PSIG (700 to 1,400 bars) One might group these sensors by other characteristics, such as: 1. Mechanical, such as pressure repeaters, helical bourdon tubes, or dead weight testers 2. …

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