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Pramod

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Abhijit Kshirsagar 2022-04-28 13:20:06 +05:30
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Name Pramod Reddy
1. Question text:
Amonia Sensor
2. Design summary:
Fairly well written.
Your worst case design is ok.
Could have added a calibration step / method to calibrate at known gas conc.
What happens if there is a problem with the sensor? The clean air level
should fall below 2mV and that should trigger a different warning/alarm also.
3. Block diagram
4. Power supply design
5. Industrial Design:
6. KICAD Design
Schematic:
Circuit design is ok overall. Could have added more functionality
PCB:
Layout is too loose.
Transformer need not be board mounted - too much weight.
If all your components are SMD layout could be tighter.
7. Pricing / BOM / Assembly
Final prixing?