Pointer instrument based on a normal pressure gauge whereby the movement of the bourdon tube is picked up inductively. ... For example resistive capacitive inductive transducers… 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. In addition, they are insensitive to vibration, dust and moisture. They produce an output signal in the form of some variation in resistance, capacitance or any other electrical parameter, which than has to be converted to an equivalent current or voltage signal. The rated electrical power required for operating inductive sensor 23 is 18 to 30 volts dc with a 150 milliamp maximum current. 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. 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. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries. #instrumentation_process_control #polytechnic As depicted in Fig. a) Act of electromagnetic force of attraction b) Lower sensitivity c) Requirement of large displacement d) None of the mentioned 2. 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. A manometer is an example of a local gauge. How it Works. Here I describe about the construction and working system of pressure inductive transducer in bangla. For example, a photocell (LDR) is a passive transducer which will vary the resistance of … They are, therefore, perfectly suited for monitoring the position of your hydraulics, such as when controlling the end position of hydraulic cylinders or monitoring valve positions. Proximity sensors detect the presence or absence of objects using electromagnetic fields, light, and sound. Transducers and Inverse Transducers- -A Transducer can be broadly defined as a device which converts a non-electrical quantity into an electrical quantity. are converted into measureable electrical resistance. It’s based on the law of induction, driving a coil with an oscillator once a metallic object approaches it. One important sensor in many modern electrical controls is the inductive pressure transducer. 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. 32) Which sensor can detect nearby objects? 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. 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. B. pierre current. Discrete event, or on/off sensor, changes its state based on the occurrence of some ... Converts pressure changes into electrical form. At present, Inductive sensor is an essential component used in machines. Inductive sensors. (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? Inductive sensors are nowadays indispensable for industrial applications. Transducers which require an external power source for their operation is called as a passive transducer. Electrical pressure sensors . An inductive pressure transducer uses the principle of inductance to convert the flexing of a diaphragm into the linear movement of a ferromagnetic core. 2. It has two versions and comprises of 4 main components: 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. B. microphone. There are many types, each suited to specific applications and environments. Fig. An inductive pressure transducer works on the principle of proximity. Explanation: Based on the self-inductance of an inductive coil, there are four types of inductive transducers available. Hence the name inductive sensor. 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. Definition of Inductive sensor: It is one type of non-contact sensor works based on working priciple of a transformer. The planar coil is sandwiched between these two magnetic films. What is an Inductive Sensor? It mentions Inductive sensor advantages and Inductive sensor disadvantages. Piezoelectric Effect. 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. Following is the list of multiple choice questions in this brand new series: MCQ in Industrial Electronics Principles and Applications . 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. How pressure sensors work 1.0 + - +-4-20mA 5v ADR02 OP-AMP ADA4091-2 Q1 R2 126.25k IN-MP AD8226 EVAL-CN0289-EB1Z R1 341.56k R3 1k R4 10k Pressure sensor [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 The parameters like force, pressure, etc. Pressure transducers are used in many control and monitoring applications such as flow, air speed, level, pump systems or altitude. The total supply current will be: A. Edit. Resistive, Capacitive, Inductive and Piezoelectric Transducers and Their Signal Conditioning. Ex:-Resistive,inductive and capacitive transducers -An inverse transducer is defined as a device which converts an electrical quantity into a … A. eddy voltage. 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 Our BHS pressure-rated inductive sensors withstand a pressure of up to 500 bar. "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). A. piezoelectric crystal. This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Inductive Transducers”. 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. They are as follows: i) Variable permeability inductive transducer ii) Variable reluctance inductive transducer iii) Eddy current inductive transducer iv) Linear variable differential transducer. A pressure transducer is a device that measures the pressure of a fluid, indicating the force the fluid is exerting on surfaces in contact with it. It uses coil or inductor for its construction. Inductive sensors are nowadays indispensable for industrial applications. In addition, they are insensitive to vibration, dust and moisture. Inductive proximity sensors are contactless sensors used to only detect metal objects. These sensors detect conductive otherwise metallic parts where contact is difficult. The Helium. An inductive sensor is a device that uses the principle of electromagnetic induction to detect or measure objects. Question MCQ A Piezoelectric transducer is a voltage source of with an internal impedence of . In this case LVDT is a secondary transducer. C. eddy current. Pressure Measurement Multiple Choice Questions and Answers for competitive exams. 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. Inductive sensors are also known as_____sensor. C. speaker. 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. at the pressure below its vapor pressure can be used to measure temperature down to 1 K. High temperature: For high-temperature measurement upto 500°C the standard hydrogen gas thermometer with platinum-iridium bulb can be used, and for … 1. Inductive Transducer is the self-generating type otherwise the passive type transducer. 1 illustrates the pressure sensor design formed by the proposed magnetic sensing unit on top of a deformable diaphragm. While the name may sound a bit intimidating, in reality, it’s a sensor that works on a relatively simple principle. It is used for position and speed sensing. 1(a), the proposed magnetic sensing unit mainly consists of a planar coil and two magnetic films (CoFeB film is employed in this study). TI Precision Labs (TIPL) is the most comprehensive online classroom for analog signal chain engineers. As compared to mechanical switches they offer almost ideal conditions: non-contact operation free from any wear and tear, high switching frequencies and accuracy. Balluff inductive proximity sensors emit an alternating electro-magnetic sensing field for non-contact object detection of metallic targets including Factor 1, pressure-rated inductive, inductive distance sensors, analog inductive sensors, Steel Face, BIP inductive positioning system. Pressure-resistant sensors. ASWDC (App, Software & Website Development Center) Darshan Institute of Engineering & Technology (DIET) 1. The information it provides is only accessible by looking at the device. Inductive sensors. If remote and or continuous monitoring of pressure is required then a sensor that converts pressure into some sort of electrical signal is needed. ELL 100 Assignment 1 (IIT DELHI) Made by:: Yuktisha Minaal Kritika. As compared to mechanical switches they offer almost ideal conditions: non-contact operation free from any wear and tear, high switching frequencies and accuracy. 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