La resolució és jutjar la qualitat dels resultats de mesura d'un rellotge. Conèixer la resolució d'un mesurador us permet saber si podeu veure petits canvis en el senyal que es mesura. Per exemple, si el DMM té una resolució d'1 mV en un rang de 4 V, podeu veure un petit canvi d'1 mV (1/1000 de volts) en mesurar un senyal d'1 V.
If you're measuring less than 1/4 inch (or 1mm) in length, you're definitely not going to use a ruler with the smallest units in inches (or centimeters). If the temperature is 98.6 degree F, it's useless to measure with a thermometer that only has integer marks. You need a thermometer with a resolution of 0.1 degree F.
El nombre de dígits i paraules s'utilitzen per descriure la resolució de la taula. Els multímetres es classifiquen segons el nombre de dígits i paraules que poden mostrar.
A 3-and-a-half-digit meter can display three full-digit digits from 0 to 9, and one half-digit (only 1 or no display). A 3½-digit digital meter can achieve a resolution of 1999 words. A 4½-digit digital meter can achieve a resolution of 19999 words.
The resolution of digital tables is better in words than in bits, and the resolution of 3½-digit tables has been increased to 3200 or 4000 words.
The 3200-word digital meter provides better resolution for some measurements. For example, a 1999 word meter, when measuring voltages greater than 200V, you can't display 0.1V. The 3200-character digital meter can still display 0.1V when measuring the voltage of 320V. When the measured voltage is higher than 320V and the resolution of 0.1V is to be achieved, an expensive 20,000-character digital meter should be used.
