Ki jan yo chwazi yon miltimèt dapre rezolisyon diferan?
Rezolisyon se jije kalite rezilta mezi yon mont. Lè w konnen rezolisyon yon mèt, sa fè w konnen si w ka wè ti chanjman nan siyal y ap mezire a. Ki jan yo chwazi yon miltimèt dapre diferan rezolisyon: Pou egzanp, si DMM a gen yon rezolisyon 1mV sou yon seri 4V, ou ka wè yon ti chanjman nan 1mV (1/1000 nan yon volt) lè w ap mezire yon siyal 1V.
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.
Yo itilize kantite chif ak mo pou dekri rezolisyon tablo a. Miltimèt yo klase dapre kantite chif ak mo yo ka montre.
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.
