Tag Archives: Pressure
Sensors and Transducers
Sensors and Transducers
Sensors and transducers are critical components in modern measurement and control systems, converting physical phenomena into readable signals or vice versa. Understanding the types, working principles, and signal processing involved is essential for engineers and professionals handling measurement and automation technologies. This article provides a comprehensive overview of various sensors and transducers, their operating mechanisms, and signal conditioning techniques.
Sensors and Transducers
Types of Sensors
Sensors are devices that detect changes in the environment or within systems and respond by generating signals that can be interpreted by observers or instruments. Sensors are usually categorised based on the physical property they measure. Common categories include temperature, pressure, flow, and level sensors.
Types of Sensors
Sensors are devices that detect changes in the environment or within systems and respond by generating signals that can be interpreted by observers or instruments....
Module 2: Pressure Measurement (All Media & Environments)
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...
