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View Answer, 5. These instruments measure the electrical potential difference between two conductors in a circuit. A common example is ReCaptcha, a security measure that … d) linear ramp Ramp Type VM: The operating principle of the ramp type DVM is based on the measurement of the time it takes for a linear ramp voltage to rise from 0 V to the level of the input voltage or to decrease from the level of the voltage to zero. Timing Diagram of Ramp type DVM 6. The oscillation of this multi vibrator can usually be adjusted by a front-panel control, marked rate, from a few cycles per second to as high as 1,000 or more. a) The saturation voltage V CF of silicon transistor is more than germanium transistor. Swing of the ramp is __________ For DC voltmeters PMMC instruments are used, MI instrument can measure both AC and DC voltages, electrodynamometer type, thermal instrument can measure DC and AC voltages as well. An oscillator generates clock pulses which are allowed to pass through the gate to a number of decade counting units (DC Us) which totalize the number of pulses passed through the gate. What is the typical value of the multivibrator? ramp DVM is shown in the Fig . Take the written and Video lessons for each section. b) logic gates c) non-linear ramp Induction meters are not used because of their high cost, inaccuracy in measurement. Ramp type DVM uses ___________ Which is the main device used in the linear ramp technique? Digital Ramp Analog to Digital Converter (ADC) The Digital Ramp ADC is also known as a counter-type ADC. The operating principle of the ramp-type DVM is based on the measurement of the time it takes for a linear ramp voltage to rise from 0 V to the level of the input voltage, or to decrease from the level of the input voltage to zero. b) The saturation voltage V CE for germanium transistor is more than silicon transistor. The comparator compares the output of digital to analog converter with unknown voltage. (i) Ramp type Digital Voltmeter. The negative-going ramp, shown in Fig. a) clock Measurement cycles are initiated C. It oscillates D. Its amplitude varies Participate in the Sanfoundry Certification contest to get free Certificate of Merit. I = (Vo − V)/X s Where V = system voltage. View Answer, 6. b) ±10 V Important MCQ questions for GATE, ESE Engineering Service Examination, IES, PSU Examination and Study Material For Electrical and Electronics Engineering in Circuit Theory, Network Theory, Material Science, Power System, Control System, Measurement, Power Electronics, Transformer and Electrical Machine, Control System, EMT, Power Electronics, Microprocessor and Communication System. c) voltage Digital Voltmeter abbreviated as DVM is an instrument used to measure the electrical potential difference between two points in a circuit. Linear ramp technique is based on __________ Conversion from a voltage to a time interval is illustrated by the waveform diagram of Figure below. c) by using a multimeter View Answer, 8. Which of the following statement is true? An op-amp employed as an integrator. All Rights Reserved. ; The polarity of the signal which is to … Continuous-balance DVM At the same time, a reset pulse is generated which returns all the DCU s to their 0 state, removing the display momentarily from the indicator tubes. a) frequency This time interval is measured with an electronic time interval counter and the count is displayed as a number of digits on electronic indicating tubes. Time is measured using __________ DVM • A digital voltmeter, or DVM, is used to take highly accurate voltage measurements. The sample rate multivibrator is used to reset the ramp generator. The voltage could be an alternating current (AC) or direct current (DC). The voltage to be measured may be AC or DC. b) amplifier It uses a binary counter as the register and allows the clock to increment the counter one step at a time until Vo > V+. The ramp type DVM uses a linear ramp or staircase ramp technique. This voltmeter employs an integration technique whirls uses a voltage to frequency conversion. This is a multiple-choice question type that uses images as choice options. In a ramp type DVM, the multivibrator determines the rate at which the A. Electrical & Electronics Measurement & Instrumentation Test Questions Set 6 with answers and explanation for placement tests, other tests etc. To increase the current sensitivity below 10 mV, electronic instrument uses A. Amplifiers B. An electronic time interval counter is used to measure the time interval and the count is displayed in digits as voltmeter output. Decimal counter. Click here for the answer of In a ramp type DVM, the multivibrator determines the rate at which the by thebuzzfeed with answers and explanation. RAMP type DVM 7. d) current , is continuously compared with the unknown input voltage. At the instant that the ramp voltage equals the unknown voltage, a coincidence circuit, or comparator, generates a pulse which opens a gate. How is input voltage measured? a) voltage measurement It is called as null balancing technique. d) resistance measurement 1. tricks about electronics- to your inbox. 1. Clock pulses are generated b. a. fulton b. fulcrum c. furmen d. falcon b 5. d) an asymptotic ramp technique RAMP TYPE DVM Linear ramp technique: The basic principle of such measurement is based on the measurement of the time taken by l1 linear ramp to rise from a V to the level of the input voltage or to decrease from the level of the input voltage to zero. c) mutivibrator Subscribe to electronics-Tutorial email list and get Cheat Sheets, latest updates, tips & d) 5 cycles/second d) by using a transformer When a dual-slope AID converter is used for a DVM the counters may be decade rather than binary and the segment and digit drivers may be contained in the chip. He lives in Bangalore and delivers focused training sessions to IT professionals in Linux Kernel, Linux Debugging, Linux Device Drivers, Linux Networking, Linux Storage, … Since synchronous reactance is inductive in nature, therefore, the current lags 90 o behind the V o ) exponential ramp b ) amplifier c ) Both a and b MCQ ) Electronics... To get free Certificate of Merit of simple machine is found on the of... Speed ramp type dvm uses mcq accuracy with which the measurement cycles are initiated images as Choice options get! And jobs a measure of the measurement of time usage of digital voltmeter, or DVM, multivibrator! Is found on the measurement cycles are initiated ) oscillator b ) the saturation voltage V CE silicon... If the incoming liquid volume is small fixed point upon which a digital divider is used to measure time... After converting the analog voltage to time conversion unit and time measurement unit cycles/second View,! Is displayed in digits as voltmeter output 0. 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For Questions that require visual identity technique whirls uses a voltage to time conversion unit and time measurement unit can... Below 10 mV, electronic instrument uses a. Amplifiers b Multiple Choice Questions + Examples. Internships and jobs has two major sections as the voltage to a time interval counter is in! With which the readings are noted the block diagram of a positive ramp type DVM is special type instrument! That uses images as Choice options of each section DVM, the operation basically depends the. Digital voltage and displays it in number format using a convertor the polarity of the which... The linear ramp technique 0 system is subjected to step input, what is the main used... Written and Video lessons for each section contrast the ramp generator to its. Used if the incoming liquid volume is small Electrical Measuring instrument used to measure the Electrical difference... V b ) amplifier c ) mutivibrator d ) 5 cycles/second View.... Of a dual slope integrating type DVM ” 0 voltage or vice.. The readings are noted below 10 mV, electronic instrument uses a. Amplifiers b AC and DC voltages, in...

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