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Different Types of Sensors

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A sensor is a device that detects and responds to some type of input from the physical environment. The specific input could be light, heat, motion, moisture, pressure, or any one of a great number of other environmental phenomena. The output is generally a signal that is converted to human-readable display at the sensor location or transmitted electronically over a network for reading or further processing.

Few examples of the many different types of sensors:

In a mercury-based glass thermometer, the input is temperature. The liquid contained expands and contracts in response, causing the level to be higher or lower on the marked gauge, which is human-readable.

An oxygen sensor in a car’s emission control system detects the gasoline/oxygen ratio, usually through a chemical reaction that generates a voltage. A computer in the engine reads the voltage and, if the mixture is not optimal, readjusts the balance.

Motion sensors in various systems including home security lights, automatic doors and bathroom fixtures typically send out some type of energy, such as microwaves,Ultrasonic waves or light beams and detect when the flow of energy is interrupted by something entering its path.

A photosensor detects the presence of visible light, infrared transmission (IR), and/orultraviolet (UV) energy.

Working principles of Water sensor

Pipeline leak detection is used to determine if and in some cases where a leak has occurred in systems which contain liquids and gases. Methods of detection include hydrostatic testing, infrared, and laser technology after pipeline erection and leak detection during service.

Pipeline networks are the most economic and safest mode of transportation for oil, gases and other fluid products. As a means of long-distance transport, pipelines have to fulfill high demands of safety, reliability and efficiency. If properly maintained, pipelines can last indefinitely without leaks. Most significant leaks that do occur are caused by damage from nearby excavation. If a pipeline is not properly maintained, it can corrode, particularly at construction joints, low points where moisture collects, or locations with imperfections in the pipe. However, these defects can be identified by inspection tools and corrected before they progress to a leak. Other reasons for leaks include accidents, earth movement, or sabotage.

Applications of water sensor

Water sensors find applications in nuclear power plants, automobiles for measuring the amount of gasoline left in the fuel tank, engine oil, cooling water, and brake/power steering fluid. Industrial applications of water level sensors include water level sensing in transport and storage tanks and water treatment tanks.

Manufacture different types of level instruments for their use in municipal areas and also in the food and beverage industry.

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Different types of Sensors. (2018, December 17). GradesFixer. Retrieved November 27, 2020, from https://gradesfixer.com/free-essay-examples/different-types-of-sensors/
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Different types of Sensors. [online]. Available at: <https://gradesfixer.com/free-essay-examples/different-types-of-sensors/> [Accessed 27 Nov. 2020].
Different types of Sensors [Internet]. GradesFixer. 2018 Dec 17 [cited 2020 Nov 27]. Available from: https://gradesfixer.com/free-essay-examples/different-types-of-sensors/
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