Figure 1 gives the block diagram of an analog instrumentation system. An analog to digital converter (ADC) converts an analog signal into digital form, shown in Figure 14.4. These short solved questions or quizzes are provided by Gkseries. Another advantage of the opamp circuit is that the voltage across the … Q.114.The gauge factor of a strain gauge is given as (a) G=ΔR/R/ Δl/l (b) G=Δl/l / ΔR/R (c) G= ΔR/R/ ΔD/D (d) none of these A multiplexer is a device which converts many signals into one c. It takes one input and results into many output d. The simple RC low-pass filter shown in the third photo converts the PWM signal to a voltage proportional to the duty cycle. b) Digital vs. Analog: Is the signal discrete or continuous? Input Transducers. b) Analog. c) Digital. Note:- Temperature controller provides 0-10V DC signal to PLC. _________ board allows sewn into … Electronics and Instrumentation Multiple Choice Questions(MCQs) & Answers for competitive exams. are examples of Analog transducers. a) Active. 1.2.2. a) Active b) Passive c) Secondary d) Inverse Ans : (a) 2. What scaling means is that you convert the raw value from the analog input to some sort of engineering value. Answer: Transducer is a device which is used to convert one from of energy into another. Thus a strain gauge, an LVDT, a thermocouple or a thermistors may be called analog transducer, as they give an … – Signal conditioning : converts the sensed signal into an analog or digital electrical value real world A/D transducer signal Signal conditioning sensor input signal (measured) microcontroller signal processing sensed data communication network display. This type of transducer converts the input quantity into an analog output which is a continuous function of time. Self generating type transducers are _____ transducers. Analog Transducers-These transducers convert the input quantity into an analog output which is a continuous function of time. Digital to analog converting is a process where digital signals that have a few (usually two) defined states are turned into analog signals, which have a theoretically infinite number of states. b) Passive. Analog Pressure Sensor Q9. Q10. The transducers that converts the input signal into the output signal, which is a discrete function of time is known as _____ transducer. Analog Transducer – The Analog transducer changes the input quantity into a continuous function. One example of such an application is using the photodiode sensor to measure light intensity. Q.46. The analog output from the sensor is processed by the ADC (Analog to Digital Converter) of the microcontroller. What is transducer? Passive: Does sensor draw energy from the signal ? Explanation: It has 14 digital pins input/output pins of which 6 can be used as PWM output, 6 analog inputs, a USB connection, a power jack, a reset button and more. a) Active. An engineering value is a number that represents the physical value e.g. ADC converter or analog input module will convert this analog signal into digital form, and the range of … This is the Multiple Choice Questions Part 7 of the Series in Computer Fundamentals as one of the Electronics Engineering topic. The input signal is usually an analog voltage, and the output is a binary number. a) Active b) Analog c) Digital d) Pulse Ans : (c) 3. A Signal Converter is a device that converts signals from sensors to industrial current signals, converts analog input signals to analog output signals, normalizes signals, or isolates signals. 1. This is derived using the calculation 2^10 = 1024, so the range ends up being 0-1023. So for easy understanding here I am taking a temperature sensor as analog input and ADC0804 to convert the analog input in digital format. c) Null and deflection methods d) Input – Output configuration What will be the output of an integrator if sine wave is applied at the input? a) Transducer or sensor b) Signal conditioning c) Intelligence d) Display View Answer Answer: a Explanation: A transducer or a sensor is a sensing device used to convert physical input to output especially voltage. The transducers that converts the input signal into the output signal, which is a discrete function of time is known as _____ transducer. The strain gauge, L.V.D.T, thermocouple, thermistor are the examples of the analogue transducer. Digital Transducer – These transducers convert an input quantity into a digital signal or in the form of the pulse. a. When sensors are used at input of a system, actuators are used to perform output function in a system as they control an external device. A pinoybix mcq, quiz and reviewers. The ADC converts this analog input to a digital output. In this section of Digital Logic Design - Digital Electronics - Wave shaping Clipping Clamping and Sweep Circuits MCQs (Multiple Choice Questions and Answers),We have tried to cover the below lists of topics.All these MCQs will help you prepare for the various … MCQ in Industrial Electronics Part 10 of the series as Electronics Engineering topic in ECE Board Exam. This amplifier amplifies the low level output signal of the transducer to such a level that it can drive the indicator or display. L.V.D.T., thermocouple, thermistor, etc. In case, there are two or more nos of stages of transduction, then it is called secondary type. Transducers are the devices that convert energy in one form into another form. If both have a resolution of 12 bits, the smallest divisible voltage for the 0 … Q.45. But here is the issue—analog sensors output data in an analog format which a microcontroller cannot understand. by Albert O'Grady Download PDF Introduction. The physical parameters that any microcontroller processes come from sensors. Self generating type transducers are _____ transducers. d) Inverse. All that is needed is a simple low-pass filter made from a resistor and a ceramic capacitor. Hence, we need a way to electronically translate analog signals into digital (binary) quantities, and vice versa. This digital output consists of a number of bits that represent the value of the analog input. The transducers that converts the input signal into the output signal, which is a discrete function of time is known as _____ transducer. So by using conversion instruction analog value from the RTD (MW100) is converted into actual analog value (MD104). So, between a device with an input range of 0 to 10 V and one with 0 to 5 V, which is effective? Q11. Strain Gauge LVDT Thermocouple Thermistor Digital Transducers-These transducers convert the input quantity into an electrical output which is in the form of pulses. These short objective type questions with answers are very important for Board exams as well as competitive exams. a) Active b) Passive c) Secondary d) Inverse Ans : (a) 2. a) Digital b) Analog c) Active d) Pulse Ans : (a) 3. Digital transducer. The Arduino has a 10-bit Analog-to-Digital-Converter (ADC), which maps sensor readings between 0 and the operating voltage (5V or 3.3V) into integer values between 0 and 1023. ADC calculator EXAMPLE#1: INPUTS: n = 3, Analog input (V_in) = 5.5V, Ref_voltage (V_ref) = 8 V OUTPUT: 5 numeric (decimal), 101 (binary) Analog to digital converter calculator EXAMPLE#2: INPUTS: n = 10, Analog input (V_in) = 0.806V, Ref_voltage (V_ref) = 3.3 V OUTPUT: 250 numeric (decimal), 1111 1010 (binary) n-bit ADC calculator formula | ADC conversion formula This input transducer converts the non-electrical physical quantity into an electrical signal. Performance and terminology Sensors are transducers that convert a physical parameter like temperature into electrical signals that the microcontroller can understand. it have many applications in electronics projects.ADC converts the quantities of real world phenomenon in to digital language which is used in control systems, data computing, data transmission and information processing. Basically ADC is used to convert the analog signals into a digital signal. As discussed above, how sensors are classified and how to select a sensor, now it’s time to know about different sensors in nature and how they are used in the industrial applications. What Is Analog Transducer? Analog-to-Digital Converter (ADC) The transducer’s electrical analog output serves as the analog input to the ADC. When the analog input signal enters the PLC you will often have to scale it in your PLC program. A sensor converts a physical event into an electrical signal, whereas an actuator converts electrical signal into a physical event. Transducer/Sensor Excitation and Measurement Techniques. 1. Answer : These transducers convert the input quantity into an analog output which is a continuous function of time. a) Active b) Analog c) Digital d) Pulse Ans : (c) 3. Question 17. The transducers that converts the input signal into the output signal, which is a discrete function of time is known as _____ transducer. An analog-to-digital converter, or ADC, performs the former task while a digital-to-analog converter, or DAC, performs the latter. Analog signal b. d) Pulse. The transducer present at the input of the communication system is known as an input transducer. An analog to digital converter (ADC) is an electronic device which converts varying analog signals into digital signals so that they can easily be read by the digital devices. Digital signal c. Both analog and digital signal d. none of the mentioned Q.21. c) Secondary. A transducer converts one form of energy to another. Q.113.A transducer is basically a device which converts (a) mechanical energy into electrical (b) energy or information from one form to another (c) mechanical displacement into electrical (d) none of these. What converts physical input into output, among the basic parts of a measuring system? It is a type of decoder which decodes several inputs and gives one output b. flow (m3/s), weight (kg) or temperature (degrees). The output of the photodiode sensor is a current which changes proportional to the light intensity. II-Characteristics of different types of sensors a) Active vs. Creating a real DAC Fortunately, it is easy to convert a PWM output to an analog voltage level, producing a true DAC. Following is the block diagram of an input transducer. what is a multiplexer? Self generating type transducers are _____ transducers. If such conversion takes place at one step, then it is a primary transducer. 12. The analog signal can be the output of some sensor and it converts by ADC in digital format for further processing. Types of Sensors 1. 1. However, when analog devices are involved, interfacing becomes much more complex. For example, let's assume that we are using a sensor that converts an analog amount to 0 to 5 volts. 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