Thickness measuring instrument GBS

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Overview
The Gamma Backscatter Sensor (GBS) is an integrated source-and-detector instrument that provides single-sided thickness or basis-weight measurement from one side of a sheet. Its compact design enables mounting in restricted process areas where conventional sensors cannot fit. The GBS delivers continuous measurement in fixed-point or scanning modes without the need for standardization and is largely insensitive to air-gap temperature changes, source decay, dust, material composition variations, and scanner alignment, supporting stable long-term accuracy with low maintenance requirements.

Features & Benefits

• Compact form factor for installation in tight process locations.
• Single-sided measurement of thickness or basis weight.
• Continuous operation in fixed-point or scanning modes without standardization.
• Stable product measurement relative to air or a steel roll.
• 100% digital measurement and signal processing for repeatability.

Applications

• Blown film production.
• Cast film and sheet manufacturing.
• Rubber and vinyl processing.
• Coatings and laminates quality control.
• Textiles and nonwovens basis-weight/thickness monitoring.
• Composites and localized thickness checks.

Compatible / Commonly paired equipment

• AccuTrak O-Frame — scanner integration
• MiniTrak O-Frame — scanner integration
• MiniTrak S-Frame — scanner integration
• SlimTrak II — scanner integration

Technical specifications

• Sensor type: Gamma backscatter with integrated source and detector (single-sided).
• Measurement: Thickness or basis weight from one side (continuous).
• Modes: Fixed-point (stationary) and scanning (continuous).
• Environmental robustness: Insensitive to air-gap temperature variations and relatively tolerant to source decay, dust, material composition changes, and scanner misalignment.
• Output: 100% digital measurement technology for stable long-term results and easy integration with control systems.
• Form factor: Compact design for installation in constrained process areas.
• Maintenance: Low maintenance needs due to stable measurement characteristics.