Understanding DC-coupled and DC-blocked Power Sensors and How Your Choice of Sensor Would Impact Measurement Accuracy

摘要

Choosing the right power sensor can be daunting as there are many different types in the market today. In general, key considerations for power sensors are the frequency range, power range, and measurement capabilities. An often overlooked area in the selection criteria is to consider if the power sensor is DC coupled or DC blocked (AC coupled). Choosing the wrong type of sensor can result in measurement inaccuracy and damage to the power sensor.