This 4-layer FR4 PCB is specifically designed for gas analyzer applications, where precision signal conditioning, thermal stability, and EMI resistance are critical for accurate gas concentration measurement. 치수와 함께 108.00mm×115.00mm 그리고 a 1.5MM 두께, the board provides a balanced foundation for integrating sensor interfaces, 신호 증폭기, and data processing circuitry in compact gas analyzer enclosures. 건축 FR4 재료, it offers reliable electrical insulation (유전 상수 εR = 4.5) and mechanical durability, suitable for operation in industrial environments with varying temperatures and humidity.
그만큼 1.5온스 (52μm) 구리 두께 on all layers ensures efficient power distribution and signal routing, supporting moderate current loads (up to 12A per trace) while minimizing voltage drop. 그만큼 4-레이어 아키텍처 (2 신호 레이어 + 2 지상/파워 평면) separates analog and digital domains, reducing cross-talk and EMI—essential for maintaining the sensitivity of gas sensor signals (often in the microvolt range). 그만큼 녹색 LPI 솔더 마스크 protects circuitry from environmental contaminants, 동안 흰색 실크 스크린 provides clear component marking for assembly and maintenance in complex gas analyzer layouts. 그만큼 출혈 (Hot Air Solder Leveling) surface finish creates a uniform, solder-friendly coating (lead-free SAC305 alloy), ensuring reliable connections for fine-pitch components (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.
- 열 관리:
- 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.
- 정밀 제조:
- 레이저 직접 이미징 (LDI) for 75μm line/space accuracy in sensor signal traces.
- Electrolytic copper plating with ±5% thickness uniformity across all layers.
- 테스트 프로토콜:
- 100% AOI inspection for solder mask coverage and silkscreen clarity.
- 전기 연속성 및 분리를위한 비행 프로브 테스트 (≥100mΩ).
- 열 사이클링 (-40° C ~ +85 ° C, 100 사이클) to verify reliability in harsh industrial environments.
- 규정 준수:
- Meets IPC-6012 Class 2 standards for industrial electronics.
- RoHS compliant for lead-free manufacturing.
- Industrial Safety Monitors:
Controls for combustible gas detectors (예를 들어, 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.
- Medical Diagnostics:
Supports breath analysis equipment for non-invasive disease detection in healthcare settings.
- 프로세스 제어:
Optimizes gas mixtures in semiconductor manufacturing, food packaging, or pharmaceutical production.
By integrating 4-layer EMI shielding, 1.5오즈 구리 전도도, and gas analyzer-specific design features, this PCB enables engineers to build reliable, 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. ISO에 의해 지원됩니다 9001:2015 인증, this PCB delivers consistent performance for gas analyzers where measurement precision and system reliability are non-negotiable.
