In DMM measurements, what does a higher resolution indicate?

Prepare for the IEC Year 2 Part 1 Test. Use flashcards and multiple choice questions with hints and explanations. Get exam-ready!

In digital multimeter (DMM) measurements, a higher resolution indicates that the instrument can display values with more detail, leading to more precise readings. Resolution refers to the smallest change in measurement that can be detected by the DMM. A DMM with higher resolution is capable of providing output that reflects minute changes in the measured quantity, which enhances the ability to discern small variations in the electrical parameters being measured.

For example, if one DMM can display voltage measurements to the nearest hundredth of a volt, while another can display it to the nearest thousandth of a volt, the latter has a higher resolution. This allows for finer distinctions in the measured values, which is particularly important in precise applications where accuracy is critical.

While higher resolution can sometimes lead to longer measurement times due to additional processing required to display more digits, this is not a direct characteristic of resolution itself. The broader range of measurements pertains more to the DMM’s capabilities in terms of maximum and minimum limits, not specifically the level of detail it can provide in readings. Similarly, resolution does not inherently mean lower accuracy; you can have high resolution with high accuracy or low accuracy, depending on the calibration of the instrument. Therefore, it's the precision in readings that is primarily indicated by

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy