How do Sensor Adhesive Vents achieve pressure equalization

2025-10-14

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Sensor Adhesive Vents Technology

How pressure equalization is achieved through structural design and material properties

Porous Membrane Technology

  • The core component is a thin, porous membrane made of expanded polytetrafluoroethylene (ePTFE) or similar high-performance materials
  • Features an interconnected network of microscopic pores that allow air molecules to pass while blocking liquids and contaminants
  • Acts as a passage for air movement between the inside and outside of sensor housings
  • Gradually reduces pressure differences until equilibrium is reached

Dynamic Pressure Response

  • Responds dynamically to pressure changes without requiring manual intervention
  • When internal pressure rises, expanded air pushes against the membrane, releasing excess pressure
  • When external pressure is higher, external air is drawn into the housing through the same pores
  • Automatic, bidirectional air flow prevents damaging pressure differences

Adhesive Backing Functionality

  • Creates a secure, airtight bond between the vent and sensor housing surface
  • Prevents air leakage through gaps around the vent's edges
  • Ensures all pressure adjustment occurs exclusively through the porous membrane
  • Maintains consistent performance even in environments with vibration or temperature variations

Environmental Adaptation

  • Design optimized to adapt to different environmental conditions affecting pressure
  • Some vents include a protective layer to shield the membrane from harsh substances
  • Protection ensures the membrane remains unclogged and functional
  • Maintains pressure equalization capability even in challenging settings