Tag Archives: DP

Objective: This module provides a thorough understanding of pressure measurement principles, sensor technologies, and the best practices for installation and maintenance required for ensuring safety, quality, and efficiency in industrial processes. 1. Core Principles of Pressure Sensing Pressure is one of the most critical process variables. Understanding how we convert a physical force into an electronic signal is fundamental. 1.1. Strain Gauge Principle How It Works: This is the most common technology. It relies on the principle of piezoresistance. A fine wire grid (the strain gauge) is bonded to a diaphragm. When process pressure flexes the diaphragm, the wires are stretched, which increases their electrical resistance. This change in resistance is precisely measured and converted into a pressure reading. Best For: General purpose applications. They are robust, reliable, and offer a great price-to-performance ratio. Visual Aid: An animation would show a...