Compare analog and digital instruments .

Compare analog and digital instruments .
by
retagged

1 Answer

Answer :


Parameter
Analog Instrument
Digital Instrument 
1 Principle
The instrument that displays analog signals is called as on analog instrument.  The instrument that displays digital signals is called as a digital instrument.
2 Accuracy
The accuracy is less.
The accuracy is more. 
3 Resolution
The resolution is less
The resolution is more.
4 Power
Requires more power.
Requires less power.
5 Cost
Analog instruments are cheap
Digital instruments are expensive.
6 Observational errors
Analog instruments have considerable observational errors. 
Digital instruments are absolutely free from the observational errors. 
7 Examples
PMMC instrument, Potentiometer, DC ammeter, DC voltmeter, etc.
Logical analyzer, signature analyzer, computers, microprocessor based instruments, etc. 
by

Related questions

Compare analog CRO with digital storage oscilloscope (DSO).

Description : Compare analog CRO with digital storage oscilloscope (DSO).

Last Answer : Analog CRO DSO 1 High bandwidth Less bandwidth due to aliasing effect 2 High  writing speed about 15 GHz Limited speed 3 No memory Has memory ... Less storage time. The digital oscilloscope is  capable of an infinite storage time, using its digital memory.

Compare analog & digital multimeter.

Description : Compare analog & digital multimeter.

Last Answer : Analog multi-meter DMM Power supply is not required  Power supply is required  Less suffered from electric noise  More suffered from electric Noise Less isolation problems. More ... visual indication Visual indication is not that much better. Less cost More cost

Explain the essential toques in analog type measuring instruments.

Description : Explain the essential toques in analog type measuring instruments.

Last Answer : List of torques in analog instruments:  1. Deflecting torque  2. Controlling / Restraining torque.  3. Damping torque.  1. Deflecting torque: To create deflection proportional to ... the speed higher will be the damping torque bringing the pointer to the equilibrium position quickly. 

State two advantages of digital system over analog system.

Description : State two advantages of digital system over analog system.

Last Answer : 1. They are less susceptible to noise. 2. The effect of fluctuation in the characteristic of the components, ageing of components etc. is very small in digital circuits. 3. Digital circuits have capability of memory which makes them suitable for computers. 4. More accurate.

What is Analog to Digital Converter (ADC) ?

Description : What is Analog to Digital Converter (ADC) ?

Last Answer : Analog to Digital Converter (ADC)  Analog quantity may be voltage, temperature, sound, speed, audio etc. it is information or signal. ... digital form), digital speedometer (converts analog speed into digital form) etc.

Digital to Analog Converter (DAC)

Description : Digital to Analog Converter (DAC)

Last Answer : Digital to Analog Converter (DAC) Digital means binary (1 0) and 1 and 0 may be true and false or on and off or high and low. Analog means continuous signal or information ... wave. Phase Shift Keying (PSK) is transmit digital data by changing the phase of carrier wave.

Advantages of digital instruments

Description : Advantages of digital instruments

Last Answer : 1. They are having high input impedance, so there is no loading effect 2. They are having higher accuracy 3. An unambiguous reading is obtained 4. The output can be interfaced with external equipment 5. They are available in smaller size . 

Compare primary and secondary instruments.

Description : Compare primary and secondary instruments.

Last Answer : Primary instruments  Secondary instruments  Gives magnitude of quantity in terms of physical constants of instrument  Gives reading directly of the quantity measured.  Need no calibration  ... .  e.g. magnetic meter, induction meter, hotwire meter and electrostatic meter 

Define Analog Transducer and give examples of it

Description : Define Analog Transducer and give examples of it

Last Answer : Analog Transducer: An analog transducer is a device that converts the input signal into a continuous DC signal of voltage or current. Examples: * Strain gauge * L.V.D.T * Thermocouple * Thermistor

Analog signal

Description : Analog signal

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

The standard for long distance analog signal transmission in process control industry is

Description : The standard for long distance analog signal transmission in process control industry is (A) 4-20 mV (B) 0-20 mA (C) 4-20 mA (D) 0-5 V

Last Answer : The standard for long distance analog signal transmission in process control industry is 4-20 mA

calibration and the need of calibration for measuring instruments.

Description : calibration and the need of calibration for measuring instruments.

Last Answer : Calibration - It is a process of estimating the value of a quantity by comparing that quantity with a standard quantity.    Need of calibration: - Calibration defines the accuracy and ... aim of calibration is to minimize any measurement uncertainty by ensuring the accuracy of test equipment.

State two purposes of calibration of measuring instruments.

Description : State two purposes of calibration of measuring instruments.

Last Answer : Purposes of calibration of measuring instruments: - The purpose of calibration is to ensure that readings of an instrument are consistent with other instruments. It is also important in determining the ... will need to be calibrated periodically to make sure it can function properly and safely. 

List three types of errors in measuring instruments. Give reasons of occurring for any one of them.

Description : List three types of errors in measuring instruments. Give reasons of occurring for any one of them.

Last Answer : Types of errors in measuring instruments:  A) Gross error: These are due to mistakes on the part of person using the instrument.  B) Systematic Error: i) Instrumental Error: These ... multiplying factor.  C) Random error: These persist even after gross and systematic errors are removed.

State the meaning of secondary instrument. Classify secondary instruments.

Description : State the meaning of secondary instrument. Classify secondary instruments.

Last Answer : Secondary instruments: - Gives reading directly of the quantity being measured. - Calibrated with respect to absolute instruments  Classification of Secondary instruments:  1. Depending on the ... on permissible error: i) Standard meters ii) Substandard meters iii) First grade instruments.

Define following terms related to measuring instruments: i) Sensitivity ii) Selectivity.

Description : Define following terms related to measuring instruments: i) Sensitivity ii) Selectivity.

Last Answer : i) Sensitivity: It is the ratio of the change in output signal to the change in input signal of quantity being measured.  ii) Selectivity: It is the term to describe fulfillment of the requirements of measurement by an instrument to be suitable for use in a given situation. 

List out any four effects of electric current used in measuring instruments & write name of meter working on it.

Description : List out any four effects of electric current used in measuring instruments & write name of meter working on it.

Last Answer : Effects of Electric Current used in measuring instruments:  1. Magnetic Effect: PMMC and Moving Iron type Ammeters, voltmeter and Dynamometer type wattmeters etc.  2. Electromagnetic induction ... . Electrostatic effect: Voltmeters.  5. Hall Effect: Flux meter, Poynting vector wattmeter.

Describe systematic errors in measuring instruments.

Description : Describe systematic errors in measuring instruments. 

Last Answer : Systematic errors: -  ➢ Instrumental Error: These errors are caused due to the mechanical structure of measuring instrument.  a) Inherent shortcomings of instruments: Instrument may read ... or electrostatic fields.  ➢ Observational Error: Parallax errors, incorrect multiplying factor. 

State the material used for moving coil and former for PMMC instruments.

Description : State the material used for moving coil and former for PMMC instruments. 

Last Answer : Material Used for Moving Coil and Former for PMMC Instruments:  Material used for moving coil: Copper  Material used for Former: Aluminium

List any four effects employed in measuring instruments.

Description : List any four effects employed in measuring instruments.

Last Answer : Effects Employed in Measuring Instruments: 1. Magnetic Effect 2. Electromagnetic induction 3. Heating effect 4. Electrostatic effect 5. Hall Effect 

List of Scientific Instruments

Description : List of Scientific Instruments

Last Answer : Hydrometer measures humidity Barometer measures atmospheric pressure Purity of milk is measured by lactometer Fathometer measures the depth of oceans. Sextant is used for measuring ... regulate the temperature to a particular degree. Viscometer: is an instrument to measure viscosity.

Electrical Measuring Instruments

Description : Electrical Measuring Instruments

Last Answer : Electrical Measuring Instruments

State the effect of dead zone on instruments.

Description : State the effect of dead zone on instruments.

Last Answer : It is the largest change in input during which the output remains constant. So during dead zone, even if input changes, output remains the same.

Define: i) Range ii) Span of instruments

Description : Define: i) Range ii) Span of instruments

Last Answer : i) Range: It is defined as the difference between Greatest and Smallest value of the data or reading of the instrument.  ii) Span: It is defined as the algebraic difference between the upper and lower range values

Permanent magnet moving coil instruments are used for

Description : Permanent magnet moving coil instruments are used for

Last Answer : PMME are mostly used for measuring voltage and current.

The use of _____ instruments is merely confined within laboratories as standardising instruments.

Description : The use of _____ instruments is merely confined within laboratories as standardising instruments.

Last Answer : The use of absolute instruments is merely confined within laboratories as standardizing instruments.

Commonly used instruments in power system measurement are?

Last Answer : Commonly used instruments in power system measurement are induction.

Operating torques in analogue instruments are?

Last Answer : Operating torques in analogue instruments are deflecting, control and damping.

The power factor of a single phase load can be calculated if the instruments available are?

Last Answer : The power factor of a single phase load can be calculated if the instruments available are three ammeters or three voltmeters.

The switch board instruments?

Last Answer : The switch board instruments should be mounted in vertical position.

In majority of instruments damping is provided by?

Last Answer : In the majority of instruments, damping is provided by eddy currents.

According to application, instruments are classified as?

Last Answer : According to application, instruments are classified as switch board, portable.

The use of which instruments is merely confined within laboratories as standardizing instruments?

Last Answer : The use of absolute instruments is merely confined within laboratories as standardizing instruments.

What do you mean by secondary instruments?

Description : What do you mean by secondary instruments?

Last Answer : The instruments which will give the direct readings are called secondary instruments

Standard Commands for Programmable Instruments (SCPI)

Description : Standard Commands for Programmable Instruments (SCPI)

Last Answer : Standard Commands for Programmable Instruments (SCPI) SCPI stands for Standard Commands for Programmable Instruments it is often pronounced as Skippy. SCPI is a instrument language that control the ... is for storing data in instrument. Display : for presentation.

Tecchies! What is the least expensive way to download analog video to my computer and cut a dvd? Ditto vinyl and audiotape to CD?

Description : Tecchies! What is the least expensive way to download analog video to my computer and cut a dvd? Ditto vinyl and audiotape to CD?

Last Answer : answer:hmmmmm .. There are older video cards that have S-video connections (the kind used for vcrs and dvd players before HDMI), that can probably be used as an input device to capture video ... watch?v=TEJdG2vTuWE http://www.digitaldjtips.com/2010/12/rip-tunes-vinyl-mp3/ Never done either though.

How do I digitize my analog video collection?

Description : How do I digitize my analog video collection?

Last Answer : answer:I bought one of the devices that is cheaper and copies directly. I'll say that unfortunately, you're always going to face one issue or another. Mine was that intermittently it would read something ... you're going to have to invest real money, or use a service rather than doing it yourself.

What analog technology would you like to see make a comeback?

Description : What analog technology would you like to see make a comeback?

Last Answer : answer:I'm going to think about this question and come back, trying to refrain from answering all of it as a kneejerk response. That really would be an exaggeration, even for me. I'm sure, uh, ... . But first I just want to give you points for including the retro spelling analogue' in your tags.

Why is data lost when analog data is converted to binary (i.e. is digitalised)?

Description : Why is data lost when analog data is converted to binary (i.e. is digitalised)?

Last Answer : Analog data is continuous while digital data is discrete. An analog signal can assume all of the infinite number of values in an interval; when it is digitized, only finitely many values are ... many nearby values. What is lost is the knowledge of which of infinitely many values it represents.

Will small portable handheld TVs not work in 2009 when they stop the analog signals?

Description : Will small portable handheld TVs not work in 2009 when they stop the analog signals?

Last Answer : they will not work, that’s correct.

working of Digital camcoder.

Description : working of Digital camcoder.

Last Answer : Explanation: Figure shows the functional block diagram of a digital camcorder system. Light from the optical lens assembly projects an image onto the charged coupled device (CCD) imager ... data from the recording medium are demultiplexed and decompressed and fed into the EVF for display.

Principal of digital frequency meter.

Description : Principal of digital frequency meter.

Last Answer : The basic block diagram of basic digital frequency meter (DFM) is shown in above figure. The signal whose frequency we have to be measured is first to be amplified through amplifier. The output of amplifier ... = Number of counts. t = Time interval between start and stop condition of the gate.

Write example of each type (i) Primary transducer (ii) Active transducer (iii) Electrical transducer (iv) Digital transducer

Description : Write example of each type (i) Primary transducer (ii) Active transducer (iii) Electrical transducer (iv) Digital transducer

Last Answer : (i) Active transducer:-Thermocouple, piezoelectric, photovoltaic cell (ii) Primary transducer:- Bourdon tube, bellows, (iii) Electrical transducer.:- LVDT,RVDT, Hall effect, strain gauge, ... , optical pyrometer, radiation pyrometer (iv) Digital transducer:- Linear Encoder, digital taco generator

Blackt Electrotech 230V 24x7 Energy Saving Socket Type Digital Programmable Plastic Electronic Timer (White)

Description : Blackt Electrotech 230V 24x7 Energy Saving Socket Type Digital Programmable Plastic Electronic Timer (White)

Last Answer : Buy from amazon: https://amzn.to/2SUTSdv Buy: http://bit.ly/2ZqlAkS

Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Description : Describe block diagram of digital comparator and write truth table of 2 bit comparator.

Last Answer : Digital comparator is a combinational circuit which compares two numbers, A and B; and evaluates their relative magnitudes. The outcome of the comparison is given by three binary variables which indicate whether A ... Depending on the result of comparison one of these outputs will go high.

Write any two advantages of digital energy meter.

Description : Write any two advantages of digital energy meter.

Last Answer : Advantages of Digital Energy Meter: 1) Easy to read. 2) High accuracy 3) High resolution. 4) No frictional losses as there are no moving parts. 5) No requirement for external adjustments. 6) Large ... due to absence of moving parts. 7) Highly efficient. 8) Very much compact. 9) Good reliability.

State two advantages of digital circuits.

Description : State two advantages of digital circuits.

Last Answer : Advantages of Digital Circuits: i) Digital circuits are easier to design. ii) Information storage is easy. iii) Accuracy and precision are greater. iv) Less affected by noise. v) Reliability is more

State the applications of digital electronics.

Description : State the applications of digital electronics.

Last Answer : 1. The processor, graphics controller are built on principles of digital electronics. 2. In Computers, tablet, displays, LCD/LED TV. 3. mobile/smart phone, , computer ,keyboard, mouse 4. speed/ ... bike/car, various control of the car, 5. ATM machines, credit /debit cards 6. Telephone exchange

Do you know from what season is digital image introduced in pokemon?

Description : Do you know from what season is digital image introduced in pokemon?

Last Answer : According to the internet movie data base, IMDB, they are in the 19th season. They are on Season 19 Episode 31 aired on September 17, Episode 32 will air on September 24. 922 episodes so far.

In today’s digital age when it comes to online dating sites isn’t it buyer beware?

Description : In today’s digital age when it comes to online dating sites isn’t it buyer beware?

Last Answer : I tired Match.com and I never found anyone and no one talked to me $30 wasted. I was being honest about being disabled.. the only match was a tall white Catholic woman looking for a rich man who ... . I am looking for a tall woman who doesn't smoke or drink. So that means everyone is disqualified.