A digital instrument is a instrument whose out put is in discrete form.
any instruments that use electronics. we are in the digital age, just as in the stone age where people used stones for defense, grinding food and living in.
Analog instruments take an level of signal and convert it to a read out. As opposed to digital instruments whereby the same signal is processed digitally to display the same results
'Multimeter' and a 'VOM meter' are different terms for exactly the same thing -a meter that can be used to measure voltage, current, and resistance. These meters can be either analogue or digital. Analogue instruments are now being priced out of the market by digital meters, due to the manufacturing costs of analogue instruments. Digital meters are more rugged and easier to read than analogue instruments, but not necessarily more accurate.
If there were no overlapping, when measuring something close to the limit of one range or an unstable signal, the instrument woud be "jumping" between this and the higher (or lower) range, making the readings more difficult and maybe causing you a headache.
In digital communication message is to be transmitted in digital form. That is why it is called so .
The basic elements in digital signal processing are an analog to digital converter, digital signal processor, and digital to analog converter. This process can take an analog input signal, convert it to digital for processing and offer an analog output.
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Digital Instruments often can have additional features for the same price as an analog instrument of the same capability, they have a more user friendly digital readout, can synthesize frequencies, store readings, record event times, create alarms, and control other instruments via digital interfaces.
T. J. Tanaka has written: 'Circuit bridging of components by smoke' -- subject(s): Digital Electronic instruments, Electronic instruments, Digital, Instruments, Nuclear power plants, Protection, Smoke prevention
Advantages and Disadvantages of the Digital InstrumentsThese days there is greater trend of using the digital instruments for measurement of all the important quantities like weight, length, temperature, humidity, current, voltage, rpm and even the blood sugar level. There are also digital instruments for measurement of the blood pressure, heart beat rate, and others.Here are some of the advantages of the digital instruments over the analogue instruments:1) They are very easy to read.2) Since there are very few moving parts in the electronic instruments, they are usually more accurate than the analogue instruments. Even the human error involved in reading these instruments is very less, which adds to the accuracy of digital instruments.3) The electronic items tend to be cheaper than the mechanical items.4) The data from the instruments can be recorded for future reference.5) The output of the digital devices can be obtained in the computerThere are also some disadvantages of the digital instruments. Here they are:1) Sometimes they tend to indicate erratic values due to faulty electronic circuit or damaged display.2) In case of high humidity and corrosive atmosphere the internal parts may get damaged and indicate the faulty values.3) Sometimes these instrument show some readings even though there is no applied measurable parameter.On the whole, the advantages of the digital instruments outdo the disadvantages, which is why they have become highly popular. You can find digital instruments in the cars, air planes, motor cycles, and also in places like air ports, railway stations, public places etc. The digital clocks are one of the most widely used instruments for the personal use and also in public and private places. The trend is towards the digital instruments since they are convenient to use and also have excellent looks. In future their use is sure to increase much more.
Digital and analog
Analog instruments take an level of signal and convert it to a read out. As opposed to digital instruments whereby the same signal is processed digitally to display the same results
Electronic digital instruments
'Multimeter' and a 'VOM meter' are different terms for exactly the same thing -a meter that can be used to measure voltage, current, and resistance. These meters can be either analogue or digital. Analogue instruments are now being priced out of the market by digital meters, due to the manufacturing costs of analogue instruments. Digital meters are more rugged and easier to read than analogue instruments, but not necessarily more accurate.
Using your terminology, there are three types of instruments. Non-electrical instruments. example Pressure gage that is simply a dial mounted to measure pressure in a hose. Electrical instruments can be sub-divided into two types: analog and digital. Analog Electrical instruments are instruments that are operated with an electrical signal. The gage measures the change in resistance or impedance that correlates to a value of the parameter. Example: Pressure gage in an aicraft cockpit will be wired to a pressure transducer in the back of the aircraft. The electrical signal is processed by a computer that correlates the output to the analog dial. Digital Electrical instruments are instruments that send a digitized values for display. The transducers for this type system will transmit values in digital format or either a On/Off or 0/1 value. Example: A digital pressure system will convert the pressure into a digital value. The computer can use the digital value to display on a computer monitor either as a numeric value or a graphic display such as a colored band. The advantage of digital instruments is that is allows transmitting more data and information to computers and then be shared with different applications and displays. Whereas an analog system has limitations of accuracy of the data.
1)digital modulation can easily detect and correct the noise. where as analog modulation has little complexity 2)security is more in digital modulation 3)digital modulated signal can traverse a long distance compared to analog modulation
Analogue moving coil and digital gauges
Analogue moving coil and digital gauges