Resolution is the internal property of the system and it is given by all hardware components evaluating the result. For example, a temperature sensor (microwire) can have a sensitivity of 0.1 °C on a certain scale, but hardware components provide the smallest detectable step of 1 °C, therefore sensor responses below 1 °C changes will not be detected.

A signal from the sensor is usually transformed into an electrical response. This needs to be digitised (usually by an A-D converter), thus the resolution is given by the number of possible steps (recalculated in bits), which can be distinguished by the AD converter . The following table describes the smallest detectable step in the case of a 4-bit device in a different range mode. The 4-bit device provides only 24 = 16 possible steps, which can be detected through the whole range.


In other words, resolution represents the ratio between the maximum possible measured value and the smallest possible change.


NOTE: Half value of the device's resolution is called uncertainty. For example, resolution of a voltmeter is 1 mV, then the uncertainty of the voltmeter is ±0.5 mV.

Read this blog if you want to understand more about the Difference between Accuracy and Resolution

Contact Information

RVmagnetics, a.s. Registration and billing information:
RVmagnetics, a.s.
Business Register of the City Court Košice, sec.: Sa, insert no.: 1662/V
Company ID number:
TAX number:
VAT number:
R&D Lab / HQ office RVmagnetics, a.s.
Němcovej 30, 040 01 Košice
Slovak Republic
European Union
Registered Seat RVmagnetics, a.s.
Němcovej 30, 040 01 Košice
Slovak Republic
European Union