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Control System Sensors
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Magnetic Sensor
Measurement Principle: Detects changes in magnetic fields, often using the Hall effect or magneto-resistive effects. Typical Application: Position and speed sensors in vehicles, electronic compasses.
Ultrasonic Sensor
Measurement Principle: Uses sound waves to detect the distance to an object. Typical Application: Level control in tanks, distance measurement in automotive parking aids.
Accelerometer
Measurement Principle: Measures acceleration forces by detecting changes in capacitance or piezoelectric effects. Typical Application: Vehicle dynamics, earthquake monitoring, consumer electronics.
Thermocouple
Measurement Principle: Seebeck Effect (generates a voltage when there is a temperature difference between two dissimilar metals). Typical Application: Temperature measurement in industrial processes.
Photoelectric Sensor
Measurement Principle: Detection of light changes as objects pass between the sensor receiver and emitter. Typical Application: Counting and object detection in conveyor systems.
Infrared (IR) Sensor
Measurement Principle: Detection of IR light emission or reflection from objects. Typical Application: Motion detectors, non-contact temperature measurements.
Pressure Sensor
Measurement Principle: Mechanical deflection of a diaphragm causes a change in electrical resistance or capacitance. Typical Application: Monitoring and controlling pressures in automotive and industrial systems.
Strain Gauge
Measurement Principle: Resistance change due to the strain experienced by the conductor. Typical Application: Load and weight measurement in scales, structural health monitoring.
Gyroscopic Sensor (Gyroscope)
Measurement Principle: Uses the Coriolis effect to measure angular velocity. Typical Application: Stabilization and orientation in robotics, vehicles, and mobile phones.
Humidity Sensor
Measurement Principle: Changes in capacitance or resistance due to moisture absorption. Typical Application: Climate control systems, environmental monitoring.
Optical Sensor
Measurement Principle: Measures the intensity, wavelength, or other properties of light. Typical Application: Quality control in manufacturing, environmental light monitoring, medical devices.
Hall Effect Sensor
Measurement Principle: Voltage generated across a conductor due to the Hall effect when a magnetic field perpendicular to the current is applied. Typical Application: Proximity sensing, positioning, speed detection of rotating parts.
Piezoelectric Sensor
Measurement Principle: Generation of an electrical charge in response to applied mechanical stress. Typical Application: Acceleration and vibration sensors, medical ultrasound transducers.
Proximity Sensor
Measurement Principle: Detects the presence of nearby objects without physical contact through electromagnetic fields or light. Typical Application: Smartphone screens, industrial automation for object detection.
Gas Sensor
Measurement Principle: Detects gas concentration based on changes in electrical resistance, electrochemical reactions, or other gas-specific interactions. Typical Application: Air quality monitoring, detection of combustible or toxic gases.
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