Online nptel gate courses for instrumentation engineering. Sep 06, 2018 basic concepts about sensors and transducers duration. Readings design and fabrication of microelectromechanical. Basic concepts about sensors and transducers duration. Transducers and sensors cp imperial college, autumn 2008 12 the following discussion refers to an implicit linear model for the sensor. Capacitance transducersi recall, capacitance of a parallel plate capacitor is. Mohanty,department of mechanical engineering,iit kharagpur. Machinery fault diagnosis and signal processing by prof. The inductance of a moving iron ammeter with a full scale deflection of 900 at 1. Mar 15, 2020 a piezoelectric transducer also known as a piezoelectric sensor is a device that uses the piezoelectric effect to measure changes in acceleration, pressure, strain, temperature or force by converting this energy into an electrical charge. Transducers a transducer is a device that converts energy from one form to another energy forms can be mechanical, visual, aural, electrical, thermal, chemical, etc. The word transducer is the collective term used for both sensors which can be used to sense a wide range of different energy forms such as movement, electrical signals, radiant energy, thermal or magnetic energy etc, and actuators which can be used to switch voltages or currents. Bee1101 1 st and 2 nd semester syallabus modulei 10 hours dc networks.
Nptel video lecture topics for mechanical engineering new no. Transducers or measurement systems are not perfect systems. Transducers definition of transducers classification. Find materials for this course in the pages linked along the left. Sensors and signal processing lecture 1 sensors and transducers measurement is an important subsystem of a mechatronics system. Estimate the angular deflection of the pointer for a current of 1. Murty was formerly professor of electrical engineering at the indian institute of technology kharagpur.
Inductive transducers or inductive linear transducers. Nptel courses in engineering, science, management, humanities and social sciences. Sarkar department of chemical engineering,iit kharagpur. Nptel video lecture topics for electrical engineering new no. Lvdt is the most commonly used variable inductance displacement transducer in industry. The inductive transducers work on the principle of the magnetic induction of magnetic material. Just as the resistance of the electric conductor depends on number of factors, the induction of the magnetic material depends on a number of variables like the number of turns of the coil on the material, the size of the magnetic material, and the permeability of the flux path. Transducer and sensors transducer a device that converts a primary form of energy in to a corresponding signal with a different energy form. Nptel mechanical mechatronics and manufacturing automation module 2. Notes for sensors and transducers st by verified writer. Control valve selection tips s bharadwaj reddy january 15, 2017 july 23, 2019. Electrical engineering industrial instrumentation nptel. Instrumentation and control tutorial 2 sensors and primary transducers this tutorialprovides an overview of instrument sensors used in process and automatic control.
A sensor is assumed to be linear so that its response y to a stimulus x is idealised to have the form. Pdf me6702 mechatronics books, lecture notes, 2marks with. Introduction to transducers, introduction to transducers. Sensortransduction element combination self generating transducer. Introduction to transducers classification and selection by ms. The use of an artificially anisotropic thermoelectric material for a core of.
So, this is a variable inductance type transducer and this is also a displacement measuring transducer, lvdt works on the principle of variation of the mutual inductance between two coils with displacement. Nptel provides elearning through online web and video courses various streams. Its main function is to collect the information on system status and to feed it to the microprocessors for controlling the whole system. It is useful to anyone studying measurement systems and instrumentation but it is provided mainly in support of the ec module d227 control system engineering. Introduction to sensors the national academies press. This device is analogus to a limit switch in mechanical systems. Positional sensors linear variable differential transformers lvdts the linear variable differential transformer lvdt is an accurate and reliable method for measuring linear distance. Industrial instrumentation nptel online videos, courses.
Unit 10 introduction to transducers introduction to. Mod01 lec17 sensors and transducers tutorial of machinery fault diagnosis and signal. History has shown that advancements in materials science and engineering have been important drivers in the development of sensor technologies. He received industrial training in the design, construction and testing of instruments at cambridge instruments co. A transducer can be anything which converts one form of energy to another. Mechatronics design engineer must know the capability and shortcoming of a transducer or. Nptel mechanical engineering modeling and control of dynamic electro mechanical system. Vtu provides elearning through online web and video courses various streams. Problem and solutions on industrial instrumentation. Mar 26, 2015 machinery fault diagnosis and signal processing by prof. Selfgenerating transducers develop their own voltage or current and in the process absorb all the energy needed from the measurand.
Mod01 lec17 sensors and transducers video lecture by prof a. Kirchhoffs laws, node and mesh analysis, deltastar and stardelta. Nptel gate courses for instrumentation engineering online. Resistive,inductive and capacitive transducers an inverse transducer is defined as a device which converts an electrical quantity into a nonelectrical quantity. Notes for sensors and transducers st by verified writer lecture notes, notes, pdf free download, engineering notes, university notes, best pdf notes, semester, sem, year, for all, study material. The gap d between the parallel plates of the capacitor is varied as d t 10 3 1 0. There are many different types of sensors and transducers. Industrial instrumentation lecture series on industrial instrumentation by prof.
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