In fact, the power required for functioning is derived from the physical change itself. Log in. a. LVDT O b. Encoder O c. Thermistor O d. Thermocouple Applications of Transducer. Get Answer. In this type of transducers, an electrical signal is intentionally converted into some sort of physical change. Which of the following detectors are well suited for spark source instruments? Pressure and particle velocity are in-phase. They produce an electrical signal proportional to the input (physical quantity). A pressure transducer, often called a pressure transmitter, is a transducer that converts pressure into an analog electrical signal.Although there are various types of pressure transducers, one of the most common is the strain-gage base transducer. Photographic plates have greater sensitivity and resolution than electron multipliers. This emf is directly proportional to the acceleration and hence, indicates the acceleration of the moving body. 10. Electrical signal into non electrical quantity B. d) Flame ionization detector. Use of the transducer is the primary factor that requires the sonographer to be in close patient contact. These are sensitive to energetic ions. Explanation: Micro-channel plate consists of an array of glass capillaries. The transducers that converts the input signal into the output signal, which is a discrete function of time is known as _____ transducer. 7. d) Electron multiplier transducer. Which of the following is not transducer? b) Photographic plates a) The dynodes are all kept at same voltage Which of the following represent active transducer? 8. Any correction and all feedback are always welcome. a) increased damping. Derive:- Energy = Magnetic fields × Length of conductor. Accept Read More, Inductively Coupled Plasma Mass Spectrometer, Controller Components – Part 2 Objective Questions, Concepts of State, State Variables & State Model, Block diagram Algebra Objective Questions, Ionization of Gases Questions and Answers, Column Efficiency and Column Resolution Questions and Answers, What is FAT and SAT? Which of the following is not an example of a transducer? a) High dynamic range b) Low linearity c) High repeatability d) Low noise View Answer Click on the glossary link to view the definition of a transducer. c) resolution is degraded at large distance. a) Rugged When voltage across the surface of a piezoelectric crystal is applied, it changes its dimension. The name itself implies that the function of Inverse Transducer is inverse of the Transducer. Factors including instrument conditions and settings, material properties, and coupling conditions will also impact test results. First, the applied force generates a mechanical movement, called strain. a. LVDT O b. Encoder O c. Thermistor O d. Thermocouple Which of the following is not a characteristic of an ideal transducer? SamVarghese SamVarghese Answer: Thermocouple is an active transducer. Its primary cathode detects ions. They can be categorized as piezoelectric, thermoelectric, magnetorestrictive, electrokinetic and optical. c) Micro-channel plate A Transducer is a device which convert a non-electrical quantity into an electrical quantity. In an accelerometer, piezoelectric crystal is sandwiched in between the two metallic electrodes and the arrangement is fastened with the floor whose acceleration is to be measured. Examples are quartz, Rochelle salt. Explanation: In discrete dynode electron multiplier, successive dynodes are held at higher potential. Chemistry. d) Electron multiplier transducer. c) Micro-channel plate In fact, the power required for functioning is derived from the physical change itself. 2. Once you have completed the questions, click on the 'Submit Answers for Grading' button at the bottom of this page to get your results. b) increased transducer frequency. Apart from this, transducers are classified into following types: This classification in shown below in pictorial form to have better grasp of the subject matter. When for is applied on the load cell, a strain is produced in it. a) High dynamic range b) Low linearity c) High repeatability d) Low noise View Answer. Thus, we see that the force is detected by the column in the first stage and hence it is called the Primary Transducer. 50) The following is a reference reflector that is not dependent on the beam angle: the side drilled hole that is parallel to the plate surface and perpendicular to the sound path. This transducer is called Accelerometer used to measure the acceleration. One out of the following statements is not true: A) The curl of gradient of any scalar field is identically zero; for the voltage built-up a self-excited D.C. generator, which of the following is not an essential; For a rotameter, which one of the following … The function of a transducer is to. The ___ transducer and corresponding field of excitation excites molecules in the traditional “pie-shaped” field. which of the following will not improve axial resolution? d) All dynodes are held at very low potential. The force is first detected by the column and is converted into the strain which is basically a mechanical displacement. This set of Instrumentation Transducers Multiple Choice Questions & Answers (MCQs) focuses on “Capacitive Transducers”. Objective: Define and demonstrate proper use of all key terms in this section. Q: An AC waveform is shown in figure B18. An 8-pole, wave-connected armature has … There are different types of transducers; input transducers and output transducers. a) Lead B. 12. Another example is a coil carrying current and kept in magnetic field. See the answer. The linear displacement is xi and the output voltage is eo. c) 2.5 to 6.2kV This is because they integrate the ion signal over a period of time. Which of the following is the least sensitive ion detector? Upto 20 dynodes need to be used for this purpose. Explanation: Electron multiplier transducer is similar to photo multiplier transducer. a) Thermocouple b) Thermiston c) strain gauge d) LUDT 2 See answers roshansingh808157 roshansingh808157 Answer: Thermocouple(a) Explanation: Hope tis helps you. This strain changes the resistance of strain gauge. The convection is the process in which the heat is transfer by the movement of the substance. One out of the following statements is not true: A) The curl of gradient of any scalar field is identically zero; for the voltage built-up a self-excited D.C. generator, which of the following is not an essential; For a rotameter, which one of the following … A. Arrangement of accelerometer is shown in figure below. Transducers are sometimes referred to as energy converters. we respect your privacy and take protecting it seriously, “POT” is an example of passive transducer. Operating range : The range of transducer should be appropriate for measurement to get a good resolution. When linear displacement is xi, the resistance of wire across the eo is (Rt/L)xi and hence, the output voltage eo will be given by voltage division rule as below. It is heavily doped with lead. When external force is applied on a Piezoelectric crystal, a emf is developed across its face on which force is applied. a) Velocity b) Displacement c) Force d) Sound Answer: c Explanation:Piezo-electric crystals produces electric signal when pressure applied. The difference is that its primary cathode detects ions rather than photons. Which of the following are not the characteristics of electron multiplier transducer? This doesn’t mean that these types of transducers don’t require power at all. c) Phosphor bronze doped with iron Explanation: Photographic plates are well suited for spark source instruments. b) Quartz 10. - 16271961 1. 6 - Which of the following is not a suitable way to... Ch. Explanation: Electron multiplier transducer is used in places where ion currents are very low. (A) Analogue voltmeter (B) Thermocouple (C) Photo electric cell (D) Pneumatic cylinder. Figure B18 For the above waveform, determine a. Peak-to-peak ... Q: 1. Let the length of resistance wire be L and total resistance be Rt. Books. Which of the following is not transducer? Which of the following is used in places where ion currents are very low? This will make the measurement system very compact. Whereas the Secondary Transducer converts the output of primary transducer (output in the form of mechanical movement) into electrical output. Devices which convert a non-electrical quantity into an electrical quantity is popularly known as Transducers. Comment * Related Questions on Process Control and Instrumentation. Another example is a coil carrying current and kept in magnetic field. A transducer can measure similar qualities to a sensor but will convert the signal from one physical form to another meaning their input and output signals are not the same as each other. A transducer is an electronic device that converts energy from one form to another. The transduction medium may be resistive, inductive or capacitive depends on the conversion process that how input transducer converts the input signal into resistance, inductance and capacitancerespectively. Transducer with a smaller crystal Scrubber Grid map Crystal collimato: Transducer with a smaller crystal" As the impedance ratio of two dissimilar materials increases, the percentage of sound coupled through an interface of such materials _____."" Solution for Which of the following is an example of digital transducer ? It is extensively used in the robotics, rotating machinery control like Crane. Transducer - MCQs with answers Q1. Change in resistance of strain gauge is calibrated with the applied force and hence, output of strain gauge directly indicates the value of applied force. Devices which convert an electrical quantity into non-electrical quantity is called Inverse Transducer. Following the transformer are the electronics. Happy hacking Which of the following modalities requires the use of a transducer? Due to interaction of current of coil with the magnetic field, it starts to rotate or translate. Physics. The transducer is always free from the load and temperature. A radio antenna. this kind of transducer has the following disadvantage: a) it cannot be focused in th elevation direction. Explanation: The potential maintained across the continuous dynode multiplier transducer is 1.8 to 2kV. The speed of response of the transducer should be as high as practicable. A lag compensator is basically a – 16. Note that, the output is not continuous rather it is in the form of pulse which means that it is discrete. In which of the following detectors, the collector is placed in an inclined manner? Maths. b) Channeltron We'll assume you're ok with this, but you can opt-out if you wish. It converts the pressure change into a change in electrical resistance of the circuit. A. Thus, electrical quantity is changed into physical quantity. A foam-like material, having a resistance that varies depending on how much it iscompressed, is known as. When trying to determine which transducer is best for you, you' ll need to consider the following variables: What material the transducer housing is made of, based on boat hull composition, how the transducer should be mounted on the boat: in the hull, through the hull, or on the transom, and what you want to see displayed: depth, speed, temperature, or a combination. A measurement system consists of sensors, actuators, transducers and signal processing devices. Power-steering system pressure Oil pressure Engine vacuum Engine compression. Solution for Which of the following is an example of digital transducer ? Question Get Answer. Explanation: Continuous dynode electron multiplier transducer is a trumpet shaped device made of glass. They are coated with electron emissive materials. Which of the following can be measured using Piezo-electric transducer? 1. Uploaded by: Sufitramp. 31. NCERT RD Sharma Cengage KC Sinha. It is used to convert a linear displacement into electrical signal. A Transducer which requires external power supply to function is called passive transducer. Explanation: Photographic plates have greater sensitivity and resolution than electron multipliers. Now that we have laid down the theoretical foundations for understanding transduscers, we can continue on the next post to see them in practice. Active Transducers are those which does not require external power supply to work. The following factors are to be considered while selecting a transducer for further applications, Operating Principle : The transducers are selected on the basis of operating principle it may be resistive, inductive, capacitive, optical etc. They use convection phenomenon for the transfer of heat. advertisement. In fact, the power required for functioning is derived from the physical change itself. consume transducers: sequence, into. b) 5 to 10kV b) Successive dynodes are held at lower potential New questions in Physics . Log in. Load cell is a short column or a strut with resistance wire strain gauge bonded to it. A) DMS Feedback: CORRECT Feedback: DMS requires the use of a transducer. c) Micro-channel plate The non-contact type transducer is sub-categorised into the following … This is the reason; it is a kind of passive transducer. This doesn’t mean that these types of transducers don’t require power at all. Due to interaction of, Transducer – Definition, Working, Components and Application, What is IGBT? 1. Selecting a Transducer. 4. Following points may be noted from the equivalent circuit of piezoelectric transducer: Source is a charge generator whose value is equal to dF. c) Microsecond of response time required A) DMS Feedback: CORRECT Feedback: DMS requires the use of a transducer. D. All of the above are examples of transducers. *Response times vary by subject and question complexity. Modify the input signal. Explanation: Electron multiplier transducer requires only nanosecond of response time. The entire process of measurement of force with the help of load cell and strain gauge can be divided into two parts. 6. Which of the following is NOT a true statement about a mechanical transducer? When voltage across the surface of a piezoelectric crystal is applied, it changes its dimension. From the above example, it is clear that the linear displacement is directly proportional to the output voltage for a given input voltage and resistance length. The arterial pressure wave travels at 6-10 metres/sec. Which of the following are true about dynodes used in discrete dynode electron multiplier? 1D 2D 3D 4D; 7. Which of the following is not a property of acoustic waves? C. Convert the primary signal into a more useful quantity, usually an electric impulse. This property is utilized to make an active transducer. Photographic plates are coated with which of the following? Which of the following detectors can be used for ions with short life time? Inverse Transducers are mainly used in control system to control various process parameters viz. Multiple choice questions. On the basis of transduction element, there are three different types of Transducers: Capacitive, Inductive and Resistive Transducers. 6. Example of active transducer is piezoelectric crystal. Which of the following is similar to photo multiplier transducer? Thus, we have output in the form of change in resistance which is an electrical quantity. Biology. Class 12 Class 11 Class 10 Class 9 Class 8 Class 7 … Continuous dynode electron multiplier transducer is a trumpet shaped device made with which of the following? It is a detector used in chromatography. This is because they integrate the ion signals over a period of time. The storage and retrieval of data on stacks should follow sequence- This doesn’t mean that these types of transducers don’t require power at all. Question: Which Of The Following Is Not A Part Of Machining System Of Water Jet Machining Transducer A Hydraulic Pumpe Jet Cutting Nozzle.co Accumulator D. This problem has been solved! b) Steel doped with bronze 3. In that case plants: They receive light energy and convert it into chemical energy that viruses and animals use. Here, it should be noted that no external source of power is required to work for an accelerometer. 1. pressure, temperature, displacement etc. a) Faraday cup collector (A) Modulation of amplitude (B) Modulation of frequency (C) Modulation of pulse width (D) All of the above. This can be viewed as waveform. Active transducers are those which do not require any power source for their operation. Primary Transducer is the detecting or sensing element which responds to the change in physical phenomena. Thus, electrical quantity is changed into physical quantity. They produce an electrical signal proportional to the input (physical quantity). US Physics 211-240 - Physics. Explanation: The collector is placed in an inclined manner in faraday cup collector. The stand-off pad increases the distance between the transducer and the mass, making it more likely that the mass will be located … The sensing element is directly not contacting the thermal source. -Working & Types of UPS Explained. Answer: Option C . Piezoelectric, thermocouple and photovoltaic cell transducers all are active transducers. d) 1.8 to 2kV. The transducer is classified by the transduction medium. d) High current gain. A transducer is a device that converts energy from one form to another. The ultrasonic transducer is an extremely important and critical part of any ultrasonic test. Mechanical Engineering Automotive Technology: A Systems Approach (MindTap Course List) Which is not a common use for a pressure transducer? 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