BPF980 NIR Bandpass Filter | 980nm Center for Accurate Moisture Analysis

Unlock Precise Moisture Measurement with the BPF980 Bandpass Filter

The BPF980 is a precision-engineered Near-Infrared (NIR) bandpass optical filter, specifically designed for high-accuracy moisture detection and analysis systems. Centered at 980nm – the critical wavelength where water molecules exhibit strong absorption characteristics – this filter ensures optimal signal-to-noise ratio for reliable moisture sensing.

Key Features & Benefits:

• Targeted for Moisture Detection: Engineered to isolate the 980nm wavelength band essential for accurate water content measurement in solids, powders, agricultural products, and industrial materials.

• High Optical Performance: Features sharp edges, high transmission (>85% typical at CWL), and deep blocking (OD4+) outside the passband to maximize measurement sensitivity and minimize background interference.

• Robust Construction: Fabricated from premium optical glass substrates with durable hard coatings, ensuring long-term stability and resistance to environmental factors in demanding applications.

• Critical for System Accuracy: Enables your NIR spectrometers, sensors, and online monitoring equipment to deliver consistent, reliable moisture readings by isolating the specific water absorption signal.

• Available Customization: Offered in standard sizes (e.g., 12.5mm, 25mm dia) or customizable dimensions, coatings (AR coatings on request), and mounting options to integrate seamlessly into your optical system.

Ideal Applications:

• NIR Moisture Sensors & Analyzers

• Agricultural Product Quality Control (e.g., grain, hay, soil)

• Food & Beverage Processing Moisture Monitoring

• Pharmaceutical Powder Drying Process Control

• Industrial Material Moisture Measurement (e.g., paper, textiles, chemicals)

• Laboratory Research & Spectroscopy

Technical Specifications (Typical):

• Center Wavelength (CWL): 980 nm

• Bandwidth (FWHM): [Specify your bandwidth, e.g., 10nm ±2nm]

• Peak Transmission: >85%

• Blocking Range: [Specify range, e.g., 400-1100nm]

• Optical Density (OD): >4.0 (outside passband)

• Substrate: Optical Glass (e.g., B270, Fused Silica - specify yours)

• Coating: Hard Dielectric

• Surface Quality: [e.g., 60-40 Scratch-Dig]

• Diameter/Size: [e.g., 25.0mm ±0.1mm]

• Thickness: [e.g., 2.0mm ±0.2mm]

• Operating Temperature: [e.g., -20°C to +80°C]

Enhance Your Detection System:
The BPF980 Bandpass Filter is the critical optical component for achieving reliable and repeatable moisture measurements. Whether you're building OEM sensors or upgrading existing equipment, this filter delivers the spectral purity required for accurate results.