b) 7.09% Participate in the Sanfoundry Certification contest to get free Certificate of Merit. View Answer, 7. when the same input value is applied to it). static characteristics Example: Consider a measuring system consisting of a transducer, amplifier and a recorder, with sensitivity for each equipment given below: the ability of a device to give the same output value when the same input value is applied to it). The linearity error for device ‘b’ would therefore be +8.6%, -3.4% FSO (full-scale output) with respect to the terminal linearity curve. Hence linearity is one of the characteristics of transducers. the ability of a device to give the same output value. Join our social networks below and stay updated with latest contests, videos, internships and jobs! This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Static Characteristics”. c) 17:719 electrical/ electronic/ electro-mechanical device that converts one form of energy to another is called a Transducer b) Digital vs. Analog: Is the signal discrete or continuous? The use of these elements and devices is not limited to measuring systems. The process of sensing is often called transduction, being made with transducers. Observations={5,5.413,5.41,4.97} Transducer Enqineerin2 Characteristics of Transducers UNIT 11 Characteristics of Transducers 2.1 kilogram and defined as the mass of a cubic decimeter of water at , its temperature of maximum density of 'IOC. View Answer, 12. The mechanical design and a stainless steel diaphragm allow the dynamic pressure sensor to withstand most aggressive liquids. • The Transducer is defined as a device, which when actuated by one form of energy, is capable of converting it to another form of energy. 13. Measurement is an important subsystem in any major system, whether it may be a mechanical system or an electronic system. a) True c) 5.125 Measurement is used, M. 15. View Answer, 6. Related Posts to Static Characteristics Of Transducers, Characteristics Of Piezoresistive Sensors. What is the relative error percentage of an observation taken by an ultrasonic sensor which predicts the distance of an object to be 2.12cm but the actual value is 2cm? © 2011-2020 Sanfoundry. Drift Dead Zone ... TRANSDUCER Thetransducerisdefinedas the formofenergyintoanother form Example: Temperature transducers Thermocouples Resistance-Temperature Detectors (RTD) b) 7.09% 1. Because then the amount of inputs and outputs and are independent of time, So the relationship between them. The characteristics of transducers are classified into two types static and dynamic. The attenuation and amplification of the electrical signals a… c) 2.125 The static characteristics of the transducers are: Accuracy; The output generated is proportional to the quantity that should be measured. b) 3.2 Precision–can be defined as the tolerance within which a measurement can be repeated (e.g. Static characteristics of any sensor or transducer are determined by observing criteria’s that vary very slowly with time. a) 13:719 Output (mV) Load (kg) Increasing Decreasing 0 0.08 0.06 5 0.45 0.88 1. d) 3.07325 a) 3.0325 2a and 6a are characterized by very high driving torque gradients in the vicinity of nominal rotational speed value and by the relatively narrow rotational speed range of a stable operation. b) False The paper presents research related to the functional features of a novel three-layer circular piezoelectric actuator/sensor. For digital output devices resolution is given by the number of bits in the output data word(s) or, in the case of incremental position transducers, by the number of states obtained per unit measurand change. Static transducer characteristics are determined by applying a series of non time varying signals to the input of the transducer and noting the corresponding outputs. So it is called primary transducer. Usually 0-100% for both FSO and range-in which case it is called the ‘terminal line’ (see dotted line in Figure 1.2)-or it can purposely be offset to suit certain applications (see broken line). c) Null and deflection methods d) Input – Output configuration b) False Bourdon tube acting as a primary transducer senses the pressure and converts the pressure into displacement. For example, in Figure 1.1 the dotted line shows the theoretical straight line of maximum linearity within the measurand range. There are various electrical and electronic components are used to build the circuits and projects for engineering students. Curve ‘a’ shows the output characteristic for a device which is linear up to 70% of the measurand range and then exibits increasing deviation from straight line linearity. d) 5.07325 View Answer, 14. View Answer, 4. It is quite difficult to determine the exact magnitude of the physical forces like temperature, pressure, etc. Mention the purposes of the measurement. b) 13:603 a) 13:409 c) 3.125 b) 10% The communication can be … from 100% to zero). View Answer, 9. Static & Dynamic Characteristics of Instruments P M V Subbarao Professor Mechanical Engineering Department A Step Towards Design of Instruments…. Note that the measurement must be carried out always in the same way to avoid hysteresis problems. a) 12% a) 7:409 The number and variety of sensors is very large indeed. a) True The straight line between the end points, namely the output values at the upper and lower measurand range limits obtained during anyone calibration (see broken line in Figure 1.3). A transducer is a device that converts energy from one form to another. Precision is normally expressed as a percentage of FSO and is sometimes referred to as repeatability. Dynamic Characteristics Of Measurement Systems. c) 6% A. c) 17:719 2. STATIC CHARACTERISTICS Application involved measurement of quantity that are either constant or varies slowly with time is known as static. … If we assume that the true output has a linear relationship with the input. The outer layers of the transducer are made of non-piezoelectric material. II-Characteristics of different types of sensors a) Active vs. a) 12% See Figure 1.6. In fact it is meaningless to quote a linearity error without stating what sort of straight line it uses as reference. Precision is normally expressed as a percentage of FSO and is sometimes referred to as repeatability. Curve ‘b’ shows the output characteristic of a transducer with a marked non-linear behaviour throughout the measurand range. a) 2.0325 The static characteristics of the asynchronous motors applied in both previous examples presented in Figs. See Figure 1.7. Hysteresis error of any sensor has maximum difference between the observed value and actual value. A calibration record table is given below. Static characteristics describe the device performance at room conditions (i.e. d) 13:619 Accuracy: It is defined as the closeness with which the reading approaches an accepted standard value or ideal value or true value, of the variable being measured. when the graph relating input to output is a straight line). Observations={2,2.13,2.1,1.9} c) 17:719 Static characteristic of a sensor cannot be found using calibration. Static Sensitivity Contents hide 1. But if the physical force is converted into an electrical signal, then their value is easily measured with the help of the meter.  Transducer is a converter of any one type of energy into another. Characteristics of measurement systems • The system characteristics are to be known, to choose an instrument that most suited to a particular measurement application. 2.4: The Common Characteristics of Transducers 2.4 The Common Characteristics of Transducers All transducers, irrespective of their measurement requirements, exhibit the same characteristics such as range, span, etc. This process mainly includes a sensing element to sense the i… For example, a transducer known as a thermocouple, is able to sense changes in temperature and produce output voltages representative of those changes. The middle layer comprises two elements—a piezoelectric disk, and a ring made of non-piezoelectric material. To practice all areas of Mechatronics, here is complete set of 1000+ Multiple Choice Questions and Answers. a) True b) 5.198 Static characteristics: The set of criteria defined for the instruments, which are used to measure the quantities which are slowly varying with time or mostly constant, i.e., do not vary with time, is called ‘static characteristics’. Accuracy and precession are same for a sensor’s observation. Hysteresis 4. What is the average value of a distance observation set taken by a ultrasonic sensor? An electrical signal outer layers of the meter practice all areas of Mechatronics Multiple Choice Questions & (. Major system, whether it may be a mechanical system or an electronic system optical ones example in... 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