Virtual Instruments Improve Electronic Experimentation

摘要

As electronic experimenters, we all build a variety of circuits and gadgets. That means we usually have to test and troubleshoot these projects. The main instrument we use for this is the digital multimeter (DMM). It can measure voltage, current, and resistance. Some DMMs even measure capacitance and transistor gain. Yet this capability is often not enough. What we really need is an oscilloscope so we can see the signals in our circuits. A scope is particularly helpful when we are using high frequency digital logic, microcontrollers, and RF ICs.