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. With dimensions of 108.00mm×115.00mm and a 1.5mm kalınlığı, the board provides a balanced foundation for integrating sensor interfaces, signal amplifiers, and data processing circuitry in compact gas analyzer enclosures. İnşa edildi FR4 material, it offers reliable electrical insulation (Dielektrik sabiti εr = 4.5) and mechanical durability, suitable for operation in industrial environments with varying temperatures and humidity.
. 1.5Oz (52μm) bakır kalınlığı on all layers ensures efficient power distribution and signal routing, supporting moderate current loads (up to 12A per trace) while minimizing voltage drop. . 4-katman mimarisi (2 sinyal katmanları + 2 ground/power planes) separates analog and digital domains, reducing cross-talk and EMI—essential for maintaining the sensitivity of gas sensor signals (often in the microvolt range). . Yeşil LPI Lehim Maskesi protects circuitry from environmental contaminants, iken Beyaz ipek provides clear component marking for assembly and maintenance in complex gas analyzer layouts. . HASL (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.
- Termal yönetimi:
- 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:
- Lazer Doğrudan Görüntüleme (LDI) for 75μm line/space accuracy in sensor signal traces.
- Electrolytic copper plating with ±5% thickness uniformity across all layers.
- Test Protokolleri:
- 100% AOI inspection for solder mask coverage and silkscreen clarity.
- Flying probe testing for electrical continuity and isolation (≥100MΩ).
- Thermal cycling (-40° C ila +85 ° C, 100 cycles) to verify reliability in harsh industrial environments.
- Uygunluk:
- Meets IPC-6012 Class 2 standards for industrial electronics.
- RoHS compliant for lead-free manufacturing.
- Industrial Safety Monitors:
Controls for combustible gas detectors (Örn., 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.
- İşlem kontrolü:
Optimizes gas mixtures in semiconductor manufacturing, food packaging, or pharmaceutical production.
By integrating 4-layer EMI shielding, 1.5OZ copper conductivity, 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. ISO tarafından desteklendi 9001:2015 certification, this PCB delivers consistent performance for gas analyzers where measurement precision and system reliability are non-negotiable.
