Discussion Overview
The discussion revolves around finding a reliable supplier for current density sensors, specifically Hall sensors, to measure current density in a tank used for treating aluminum foil in the production of electrolytic capacitors. Participants explore the technical requirements and challenges associated with measuring current density in this context.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
Main Points Raised
- One participant seeks guidance on suppliers for current density probes suitable for measuring in a tank where aluminum foil is treated.
- Another participant requests more details about the setup, including whether the current density is DC or AC, and the frequency range if AC is involved.
- A participant explains the need to measure current density to understand the current on the surface of the foil, noting that Hall probes were historically used for this purpose.
- There is a suggestion that measuring overall current flow and dividing by area could be an alternative approach, questioning whether current density varies in different areas of the tank.
- One participant mentions the use of Hall sensors to avoid disturbing the currents, proposing a design involving a waterproof Hall current sensor probe.
- Another participant references the definition of current density in electroplating as amps per square inch and shares links to outdated suppliers and a patent related to current density measurement.
- A participant shares an experience from an industrial electroplating facility, suggesting that uniform current density is important for consistent film deposition and asking for more details about the tank geometry.
Areas of Agreement / Disagreement
Participants express various viewpoints on the measurement techniques and the importance of current density uniformity, but no consensus is reached on the best approach or supplier for the sensors.
Contextual Notes
Participants note the historical use of Hall probes and the potential challenges in measuring current density accurately, including the need for waterproofing and the geometry of the tank setup.
