Digital multimeter Essay Example | Topics and Well Written Essays - 2500 words

Digital multimeter - Essay Example The user guide could be used by a number of individuals in order to achieve high performance and full control of various electrical installations. The research was undertaken in a school setting by involving students in active participation with the aid of user guides. The students were then assessed and the outcome recorded. The outcome was later used to upgrade the user guide. Multimeter which is also known as multitester is an electronic gadget that integrates several measurement function of a unit. A multimeter has several features that have the ability to record current, voltage and resistance using the relevant electronic instruments. In the current world multimeter has been upgraded and may use digital and analogue technologies. In that case, they can be referred to as Analog Multimeter (AMM) and Digital Multimeter (DMM). Analogue technology measure signal in non-continuous form while digital measure signal in discreet form. Thus Analog instruments such as micro ammeter usually have a pointer which moves over a scale attuned for all the dissimilar measurements that can recorded while Digital instruments on the other hand display digits which are sometimes shown on a bar of a length relatively proportional to the magnitude being measured. (Mazur, 2008). In real life situation, Multimeters can be used to correct faults that occur in electric circuit. This is because they posses high degree of accuracy. For example galvanometer is used to detect the presence of electric current and the direction of flow of electricity. This has helped over the years in various households and offices to prevent fire outbreak due to early detection of these faults. Background Men had a quest of acquiring a tool that he could use conveniently to measure and detect electric current thereby having full command of his environment regarding electricity. A lot of inventions were made by many inventors in order to quench this thirst ; with the first ever moving pointer to be invented which had these abilities was the galvanometer. This was used across the board to measure resistance and voltage since it was the only device. It functioned with the aid of Wheatstone bridge. The device was known to be too slow when used in labs and in the fields. It was also bulky and delicate. Man then adopted the premise that there were more than were known to them, therefore he kept the fire blazing by conducting more research to acquire more practical and convenient devices. A meter which used fine metal spring was then discovered. Besides it detecting current it also had the capability of recording measurements by use of its magnetic properties. It was quick and easy to use. Multimeters were then invented in the early 1920s. They consisted of separate devices necessary for to maintaining telecommunication. As time went by, people became tired with carrying these separate instruments and this was a clear indication that a more convenient device was needed. Macadie invented a device which could record amperes, volts and ohms. It was later called Avometer since it was a multipurpose. His idea was later borrowed