An important aspect taken into account when determining parameters of damping performed by car shock absorbers at a testing station is the permissible range of characteristics of a shock absorber of t… momentum. Piezoelectric load cell can be used for measurement of a. The original signal which is not mixed with the carrier is known as pure signal and the signal mixed with the carrier is called mixed signal. View Answer, 4. The internal force is the elastic force acting on the elastic strip which attempts to make the strip contract to the smallest possible size. There are three types of Bourdon elements and they are: Mechanical Engineering MCQ questions and answers especially for the Mechanical Engineer and who preparing for GATE Exam. Force is a vector quantity—that is, it has both magnitude (size) and direction. In Imperial units, stiffness is typically measured in pounds(lbs) per inch.. Generally speaking, deflections (or motions) of an infinitesimal element (which is viewed as a point) in an elastic body can occur along multiple DOF (maximum of six DOF at a point). Low sensitivity and fast response if they are stiff c. Low sensitivity and slow response if they are stiff d. None of the above . tension. ANSWER : D. 11. Although forces cannot be seen directly, their effects can be observed and measured. Spiral type The movement of the tip is ideally proportional to the pressure applied. Mechanical pressure-sensing elements include the bellows, the diaphragm, and the bourdon tube. c) Both tensile and compressive strain gauges A period of rapid population growth between a preindustrial, stable population characterized by high birth and death rates and a later, modern, stable population marked by low fertility and mortality is known as Bourdon tube (ii.) c) Force to voltage Besides metallic or piezoresistive SGs, force sensing resistors (FSRs) [11] and carbon nanotubes (CNTs) [12] are successfully utilized in modern applications for force measurement. Elastic type pressure gauges are also used for pressure measurement up to 700 MPa. Illustrate the working principle of any one in details. Tantalum also is used for highly corrosive, high temperature applications. Since total energy remains constant 0 or ( ) 0 dE d TU dt dt 1 ()2 2 T m x Figure 7.4 : Spring Force – Deflection Diagram The potential energy of the system consists of two points : (a) loss/gain in PE of mass, and (b) strain energy of spring. type of elastic force that occurs when matter is pulled or stretched. It is the process of eliminating unwanted components of a measurand while allowing desired components to pass. For these processes the transducer signal is superimposed on a high frequency wave form called carrier in such a way that it is impossible later to recover & display the original signal. That means it is very sturdy, but also minimally elastic. Multiple-Choice Questions 1. Which of the following quantities cannot be measured by a load cell? The SI unit applied to elasticity is the pascal (Pa), which is used to measure the modulus of deformation and elastic limit. In Imperial units, stiffness is typically measured in pounds(lbs) per inch.. Generally speaking, deflections (or motions) of an infinitesimal element (which is viewed as a point) in an elastic body can occur along multiple DOF (maximum of six DOF at a point). c) Capsule You'll get subjects, question papers, their solution, syllabus - All in one app. a) Large weight a) Force is a scalar quantity Which of the following represents correct relationship for strain in ring-type load cell? b) False Rahul Kala, in On-Road Intelligent Vehicles, 2016. During a measurement, weight acts on the load cell’s metal spring element and causes elastic deformation.. In this case the grounding process does not involve earth at all. To measure large force; measure several thousand “g” Characteristics depend upon temperature. The degree of linearity depends upon the quality of gauge from oval to circular, and this tends to straighten out the tube. Most of the time, primary sensing elements in local indicators or in electronic transmitters are elastic pressure sensors. b) (F R)/(E b t2) Multiple choice questions . A pupil used the apparatus shown in the diagram to investigate the relationship between the force applied and the extension produced in the spring by that force. This strain (positive or negative) is converted into an electrical signal by a strain gauge (SG) installed on the spring element. U = Elastic strain energy. Traditional engineers in Britain often use pounds and square inches as their measures of “force… b) False weight. A dynamometer is capable of measuring different kinds of force such as mechanical force and muscular force. These extremely small changes can be acquired with strain gauges. Pressure gauges using Bourdon tube find wide applications because of their simple design and low cost, and are most commonly used for local indications and for signal transmission to remote locations. 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