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Types of Comparators

11/7/2013 8:26:47 AM | by Anonymous

Comparators

Comparators are basically tools that compare voltage of currents with a standard that is set. Comparators are very important for people such as manufacturers so that they meet the specifications in a product. For example, when manufacturing food items comparators regulate the amount of food being distributed so that it matches the specifications. If the measurements did not match, then the workers can make the relevant adjustments before re-packaging the items and shipping them out.


There are many types of comparators that are used widely across different industries in settings. The first type of comparator is the voltage comparator. Electricity is fed into this comparator and the voltage comparator compares the negative and positive voltages of the electricity to find out if they are balanced of if one side has a higher voltage than the other. Voltage comparators are also able to convert waves such as signals to allow it to be counted in the hertz units.

Thermostats also have voltage comparators. They work by changing the voltage level in the thermostat when it senses that there is a sudden change in temperature. The comparator also sends a signal to the cooling or heating systems to return the temperature and voltage to its normal initial state once the external temperature has reached normal levels.


Comparators can also be used in computer programming. Javascript is a type of programming language used to edit and enhance a website’s capability. A comparator used in javascript is slightly different from the typical comparators used in other applications. A comparator in javascript sorts data present in an array and the comparator shows the data in the specified order based on value inputs. The computer is then able to compare each element with each other.


On the topic of computers, there is also a comparator know as the digital comparators. Digital comparators are circuits that receive binary signals. The comparator then compares the signals which are also known as bits to determine how equal they are. By using logical gates, the comparator is able to compare both bits and determine if one is larger than the other. Digital comparators are able to take in multiple bits to compare and many times these bits are used with external hardware and software to convert them into real numbers.

 


Digital comparators are also useful in central processing units in computers and other electronic devices. Theses digital comparators handle a big portion of logical operations. When information is being entered, the comparator can only understand binary data which is either one or zero.

 

Another type of comparator is the optical comparator. This type of comparator projects a magnified image on a screen so that it can be measured and compared with a standard set of data. Optical comparators are also used to combine parts of images so that it conforms to the desired standards. The comparison starts with placing the image on a piece of glass. A bright light source is then applied onto the image. There are some lenses in the comparator and these lenses are used to transfer and magnify the image onto another screen.


On the viewing screen, there is a template or reference grid to which the image can be compared or measured. The templates can range from simple grids to a detailed overlay depending on the user. Some of the more advanced optical comparators enabled users to measure the picture’s pixels to be even more precise. These types of comparators use computer systems as humans are unable to view an individual pixel. Other functions include comparing and measuring video clips as well.


Although such comparators are still new, given the rapid pace of technology growth, the comparators may be even more advanced and allow people to compare images and videos even more accurately.

 

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