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(Solved) Types of transducer - Doc

   

Added on  2021-04-21

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TASK 1a) TransducerThis is a device which is involved in the conversion of energy from one state to another. It mostly transforms a signal in one form of energy to a signal in another and usually, it is used in the boundaries of the control system and measurements where conversion of electrical signals is done to and from other physical quantities for example motion, light, force and energy. The conversion of one form of energy to another is known as transduction. The transducer is selected based on the following characteristics namely; sensitivity, drift, accuracy, precision, hysteresis, and resolution. Types of transducer The mechanical and electrical transducer Mechanical transducer is a type of transducer which converts the physical quantities into mechanical ones while those that are involved in conversion of physical quantities into electrical quantities are known as electrical transducer for example thermocouple which changes the difference in temperature of small voltage or linear variable differential transformer which is used in measuring the displacement[CITATION Cha161 \p 356 \l 1033 ].Temperature transducerThis type of transducer is an electrical device which assists in the conversion of a device temperature into another quantity such as pressure, mechanical or electrical energy. Thereafter the quantity will be sent to the control device for regulation of the device temperature.

Fig 1: Showing temperature transducer[CITATION Placeholder1 \p 33 \l 1033 ]The transducer is applied when measuring air temperature in a way that it controls the temperature of numerous control system, for example, ventilation, heating, and air conditioning. The controlling of temperature and exhibiting the measure of temperature on an LCD display is carried out by the Arduino based automatic fan speed regulator. The fixing of temperature can bedone using the DEC and INC for increasing and decreasing. Ultrasonic TransducerThe conversion of electrical signals to ultrasound waves is the main function of ultrasound waves. This transducer is also known as a piezoelectric transducer and they can be used in measuring the distance of the sound based on the reflection. In case ultrasonic transducer detect any object or obstacle then the waves are transmitted and gets reflected back from the object thenthese waves are received by the transducer

Fig 2: Showing ultrasonic transducer[CITATION Ala08 \p 54 \l 1033 ]b) ActuatorThis a part of a machine that is liable for controlling or moving a system or mechanism and they require a source of energy and signals. It is simply a tool by which a control system acts upon thesurroundings. Its control system can be either electrical or mechanical system. The control signalis comparatively low energy and it can be electric current or voltage, hydraulic or pneumatic or hydraulic fluid pressure. The signals are converted into mechanical motion by the actuator after receiving the control signals[CITATION Jan10 \p 134 \l 1033 ]. Types of actuatorHydraulic cylinderThis is a mechanical actuator which renders a unidirectional force through a unidirectional stroke. The power is obtained by the actuator from the pressurized hydraulic fluid which is normally oil and it entails the barrel, piston and piston rod. The oil is pushed in the other chamber by the piston back to the reservoir and the pressure of the oil at the end of the rod is zero and at the head end is around zero while the pressure at the cylinder times the piston area equals to the force on the piston[CITATION Placeholder1 \p 435 \l 1033 ].

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