This 4-layer FR4 PCB is specifically designed for gas analyzer applications, where precision signal conditioning, тепловая стабильность, and EMI resistance are critical for accurate gas concentration measurement. С размерами 108.00mm×115.00mm и 1.5ММ толщина, the board provides a balanced foundation for integrating sensor interfaces, усилители сигнала, and data processing circuitry in compact gas analyzer enclosures. Построено из FR4 материал, it offers reliable electrical insulation (Диэлектрическая постоянная εr = 4,5) and mechanical durability, suitable for operation in industrial environments with varying temperatures and humidity.
А 1.5Унция (52мкм) толщина меди on all layers ensures efficient power distribution and signal routing, supporting moderate current loads (up to 12A per trace) while minimizing voltage drop. А 4-архитектура слоя (2 Слои сигнала + 2 наземные/силовые плоскости) separates analog and digital domains, reducing cross-talk and EMI—essential for maintaining the sensitivity of gas sensor signals (often in the microvolt range). А Зеленая маска припадки LPI protects circuitry from environmental contaminants, Пока Белый шелкосный экран provides clear component marking for assembly and maintenance in complex gas analyzer layouts. А HASL (Hot Air Solder Leveling) surface finish creates a uniform, solder-friendly coating (lead-free SAC305 alloy), Обеспечение надежных соединений для компонентов с тонкими шагами (down to 0.4mm pitch) and through-hole sensors.
- EMI-Shielded Signal Paths:
- Ground planes isolate analog sensor signals from digital noise, critical for ppm-level gas detection accuracy.
- Differential routing for Wheatstone bridge sensor interfaces to minimize common-mode interference.
- Тепловое управление:
- Thermal vias connect power components to ground planes for efficient heat dissipation, maintaining sensor stability in temperature-sensitive gas analysis.
- Sensor Interface Optimization:
- Low-noise power supplies (±1% ripple) for electrochemical and infrared gas sensors.
- Protection circuitry (TVS diodes, fuses) against transient spikes from sensor excitation voltages.
- 2×2 Panel Format:
- Each panel contains 4 identical boards, reducing production costs and enabling efficient mass assembly for gas analyzer OEMs.
- Precision Fabrication:
- Лазерная прямая визуализация (LDI) for 75μm line/space accuracy in sensor signal traces.
- Electrolytic copper plating with ±5% thickness uniformity across all layers.
- Протоколы тестирования:
- 100% Проверка AOI на предмет покрытия паяльной маски и прозрачности шелкографии.
- Проверка летающим зондом электрической целостности и изоляции (≥100 МОм).
- Термический велосипед (-40° C до +85 ° C., 100 цикл) to verify reliability in harsh industrial environments.
- Согласие:
- Meets IPC-6012 Class 2 standards for industrial electronics.
- RoHS compliant for lead-free manufacturing.
- Industrial Safety Monitors:
Controls for combustible gas detectors (НАПРИМЕР., methane, propane) in oil refineries, chemical plants, and mining sites.
- Environmental Monitoring:
Processes data from air quality sensors (CO, NO2, O3) in smart cities or research laboratories.
- Медицинская диагностика:
Supports breath analysis equipment for non-invasive disease detection in healthcare settings.
- Управление процессом:
Optimizes gas mixtures in semiconductor manufacturing, food packaging, or pharmaceutical production.
Благодаря интеграции 4-слойной защиты от электромагнитных помех, 1.5OZ copper conductivity, and gas analyzer-specific design features, эта печатная плата позволяет инженерам создавать надежные, accurate gas detection systems. The 2×2 panel format balances production efficiency with design flexibility, while HASL finish ensures cost-effective soldering for high-volume manufacturing. Окреплен ISO 9001:2015 certification, this PCB delivers consistent performance for gas analyzers where measurement precision and system reliability are non-negotiable.
