inductive displacement transducers mcqs with answers 1 how does the value of mutual inductance ... of a shaft is directly proportional to temperature pressure transducers mcqs with answers 1 which reversible phenomenon in a thermocouple device exhibits the absorption and liberation of heat during This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Inductive Transducers”. Resistive, Capacitive, Inductive and Piezoelectric Transducers and Their Signal Conditioning. As depicted in Fig. Ex:-Resistive,inductive and capacitive transducers -An inverse transducer is defined as a device which converts an electrical quantity into a … 1. Pressure-resistant sensors. 1(a), the proposed magnetic sensing unit mainly consists of a planar coil and two magnetic films (CoFeB film is employed in this study). Inductive sensors are nowadays indispensable for industrial applications. While the name may sound a bit intimidating, in reality, it’s a sensor that works on a relatively simple principle. www.gtu-mcq.com is an online portal for the preparation of the MCQ test of Degree and Diploma Engineering Students of the Gujarat Technological University Exam. For example , in case of pressure measurement , bourdon tube is a primary sensor which converts pressure first into displacement, then the displacement is converted into an output voltage by an LVDT. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) In working system, the crystal acts like a tiny battery with a positive charge on one face and a negative charge on the opposite face. C. eddy current. These short objective type questions with answers are very important for Board exams as well as competitive exams. Pressure transducers are used in many control and monitoring applications such as flow, air speed, level, pump systems or altitude. An inductor develops a magnetic field when a current flows through it; alternatively, a current will flow through a circuit containing an inductor when the magnetic field through it changes. Edit. A resistance of 57.5 Ω has been connected to a 230 V 50 Hz supply, in parallel with an inductive reactance of 57.5 Ω and a capacitive reactance of 230 Ω. For example, a photocell (LDR) is a passive transducer which will vary the resistance of … Hence the name inductive sensor. These sensors detect conductive otherwise metallic parts where contact is difficult. The rated electrical power required for operating inductive sensor 23 is 18 to 30 volts dc with a 150 milliamp maximum current. The movement of the core is used to vary the induced current generated by an AC powered primary coil on another secondary pick-up coil. Inductive sensors are also known as_____sensor. ... Converts pressure changes into electrical form. An inductive pressure transducer works on the principle of proximity. A pressure sensor can also be designed to perform as a pressure switch, which generates a simple on/off signal that will change state when a preset threshold is reached. Dubai Sensors is an e-commerce platform, where we host an array of industrial products, ranging from sensors to controllers, measuring equipment to accessories, Dubai Sensor is the place where we provide to our kind customers with all the industrial and automation solutions they desire. Electrical pressure sensors . Which of the following represents drawback of the inductive transducer for displacement measurement? These sensors are robust devices and mainly designed depending on the requirements of the proximity sensor. In this case LVDT is a secondary transducer. How it Works. A. piezoelectric crystal. The information it provides is only accessible by looking at the device. Inductive sensors. ... For example resistive capacitive inductive transducers… [resistive] [inductive] 7 people answered this MCQ question resistive is the answer among resistive,inductive for the mcq RTDs, strain gauges, and pressure transducers are _____ devices Inductive sensor 23 further includes output terminal 51, through which a DC output signal is provided which indicates the pressure in wellhead housing 13 (shown in FIG. are converted into measureable electrical resistance. As compared to mechanical switches they offer almost ideal conditions: non-contact operation free from any wear and tear, high switching frequencies and accuracy. 32) Which sensor can detect nearby objects? One important sensor in many modern electrical controls is the inductive pressure transducer. Transducers which require an external power source for their operation is called as a passive transducer. The total supply current will be: A. Pointer instrument based on a normal pressure gauge whereby the movement of the bourdon tube is picked up inductively. An inductive pressure transducer uses the principle of inductance to convert the flexing of a diaphragm into the linear movement of a ferromagnetic core. Inductive sensors are nowadays indispensable for industrial applications. Related Post: LVDT: Linear Variable Differential Transformer – Inductive Sensors; Working Principle of a Strain Gauge: A strain gauge is a sensor, which results in change of resistance due to the applied force. Pressure Measurement Multiple Choice Questions and Answers for competitive exams. The on-demand courses and tutorials include introductory ideas about device architecture, in addition to advanced, application-specific problem-solving, using both theory and practical knowledge. If remote and or continuous monitoring of pressure is required then a sensor that converts pressure into some sort of electrical signal is needed. "Genuine" inductive pressure sensors operate in accordance with the principle of inductive position measurement whereby the core of the coil is connected to a diaphragm whose deflection it measures (Figure I 6). As compared to mechanical switches they offer almost ideal conditions: non-contact operation free from any wear and tear, high switching frequencies and accuracy. These short solved questions or quizzes are provided by Gkseries. a) Act of electromagnetic force of attraction b) Lower sensitivity c) Requirement of large displacement d) None of the mentioned 2. A manometer is an example of a local gauge. It mentions Inductive sensor advantages and Inductive sensor disadvantages. Piezo is a Greek term signifying “press” or “squeeze”.Piezoelectricity (also called the piezoelectric effect) is the presence of an electrical potential across the sides of a crystal when mechanical stress is applied by squeezing it. Question MCQ A Piezoelectric transducer is a voltage source of with an internal impedence of . An inductive sensor is a device that uses the principle of electromagnetic induction to detect or measure objects. 1. Transducers and Inverse Transducers- -A Transducer can be broadly defined as a device which converts a non-electrical quantity into an electrical quantity. It is used for position and speed sensing. Definition of Inductive sensor: It is one type of non-contact sensor works based on working priciple of a transformer. It uses coil or inductor for its construction. In addition, they are insensitive to vibration, dust and moisture. 1). ELL 100 Assignment 1 (IIT DELHI) Made by:: Yuktisha Minaal Kritika. The parameters like force, pressure, etc. In addition, they are insensitive to vibration, dust and moisture. Discrete event, or on/off sensor, changes its state based on the occurrence of some B. pierre current. 10.5.2 Velocity Transducers 10.5.3 Force or Pressure Transducers 10.5.4 Temperature Transducers 10.6 Summary 10.7 Key Words 10.8 Answers to SAQs 10.1 INTRODUCTION Sensors can be broadly classified in two categories: discrete event and continuous. (a) Proximity sensor (b) Humidity sensor (c) Touch sensor (d) Pressure sensor ANS-a 33) The monitoring of machines, gears and objects are achieved by which sensor? It has two versions and comprises of 4 main components: At present, Inductive sensor is an essential component used in machines. Explanation: Based on the self-inductance of an inductive coil, there are four types of inductive transducers available. Inductive proximity sensors are contactless sensors used to only detect metal objects. C. speaker. A. eddy voltage. 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