Let's say you're performing a critical calibration or measurement in a bridge configuration. You have your choice of a high-resolution digital multimeter and an analog nullmeter with nanovolt ...

Fig. 1: Note the 3 dB difference in left- and right-channel levels shown by the console VU meters in this photo of announcer Pete Vukelich in the studio of WWWI Radio in Baxter, Minn. Yes, we are in ...

In the comments to my series of blogs on temperature measurement on the late, lamented Microcontroller Central, there was some feeling that a blog on calibration of analog IO might be a good idea. Let ...

Over the years, a wide variety of electrical meters has been developed to assist with monitoring and troubleshooting electrical systems. Let's take a look at some of the more common metering devices.