Let’s start with a picture of the final product with a split-core Hall effect sensor clamped on (Figure 1):Figure 1 Image of the Hall effect split-core current sensor calibration station with the hall ...

It works by alternating the magnitude of the excitation current, I B, between two values, I B1 and I B2, where I B1 =2I B2. The ac component of the resulting signal is thus approximately I B R W, ...