Video guide surveys current sensor types from shunt resistors to fiber optics

ElectrArc240 has published a video tutorial covering every major type of current sensor. The guide starts with shunt resistors, commonly used in low-voltage applications like GPU power limiting on videocards, then progresses through transformer-based clamp meters, Hall-Effect, TMR and fluxgate sensors, and finally fiber-optic sensors that exploit the Faraday effect. For each type, the video covers construction, use cases, and practical pitfalls.

Sensor types covered

• Shunt resistors: measure voltage drop across known resistance; cheap and reliable for low-voltage, low-current DC applications
• Transformer-based clamp meters: contact-free sensing via electromagnetic flux; works for AC and some DC applications
• Hall-Effect, TMR, and fluxgate sensors: solid-state alternatives with varying performance characteristics
• Fiber-optic current sensors: use interferometry to detect phase changes from the Faraday effect; highest resolution but most expensive
• Each type's construction, optimal use case, and potential gotchas are demonstrated in the video