Fiber Optic Sensing Solutions
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FIBER OPTIC SENSING SOLUTIONS PLUG & FORGET, LIFELONG STABILITY althensensors.com SIGNAL CONDITIONING YOUR EXPERT PARTNER IN SENSORS & CONTROLS ALTHENSENSORS & CONTROLS

UNIQUE ADVANTAGES ABOUT WLPI TECHNOLOGY ABOUT SCBG GAAS TECHNOLOGY READ MORE ON PAGE 4 READ MORE ON PAGE 17 IMMUNE TO HIGH VOLTAGE & EMI LONG TERM STABILITY INTRINSICALLY SAFE TOUGH & ROBUST NO DRIFT APPLICATION MARKETS READ MORE ON PAGE 8-9 PLUG & FORGET HOW DOES WLPI COMPARE WITH OTHER FIBER OPTIC TECHNOLOGIES? READ MORE ON PAGE 6 ABOUT ALTHEN SENSORS & CONTROLS READ MORE ON PAGE 7

ABOUT WLPI FIBER OPTIC TECHNOLOGY SCHEMATICS PRINCIPLES The patented white light polarization interferometry (WLPI) technology offers a great degree of flexibility in the design of various types of fiber optic transducers. Therefore numerous measurement and sensing applications can benefit from this advantageous feature combined with its outstanding performances. The WLPI technology is aimed to respond to the most demanding applications! Fiber optic sensors are made up of two main parts: the fiber optic transducer (also called the fiber optic gauge or the fiber optic probe) and the signal...

HOW DOES WLPI COMPARE WITH OTHER FIBER OPTIC TECHNOLOGIES? Fiber optic sensors in general have some big advantages over their electrical equivalents such as their immunity to electromagnetic interferences and high voltages, being intrinsically safe, being insensitive for lightning strikes, and their potential small size, just to mention a few. But the white light polarization (WLPI) technology has even more advantages compared to the other fiber optic technologies available in the industry. Easier to deploy: compared to other fiber optic sensor technologies the WLPI technology is an...

APPLICATION MARKETS GENERAL INDUSTRIES Fiber optic sensor solutions have created new opportunities The inherent benefits of fiber optic point sensing techno- in general industry applications. Because of the unique charac- logy for structural health monitoring applications are its highly teristics of the sensors, new solutions are possible which could sensitivity, stability and accuracy. not be created with traditional electrical sensor systems. affected by external environment, large temperature variation, The fiber optic sensors (temperature, pressure, deformation transversal strain, or...

SENSORS STRAIN +/- 1000pe, +/- 2500pe, +/-5000pe 0.15pe +/- 3% F.S., +/- 3% F.S. +/- 10% F.S. Readout unit dependent 10mm x 0.230mm O.D. Acrylate tight buffer, Braided fiberglass WPLI - High accuracy, Miniature - General, Industrial, High temperature -40°C to 250°C +/-500pe, +/-1000pe, +/-2000pe, +/-2500pe, +/-5000pe, 0 to 10000pe 0.15pe +/-0,5pe to 3pe Readout unit dependent 25mm x 5mm x 1mm diameter Acrylate with braided sheath fiber glass (other on request) WPLI - High accuracy and resolution - Easy integration in size - Resistant to high temperature All types of applications -40°C to...

50-1000 psi < 0.02% F.S. +/- 0.1% F.S. Readout unit dependent 9.5mm x 58mm 4mm O.D. Polyurethane WLPI - Robust design - General, Industrial -20°Cto 85°C 50-1000 psi < 0.01% F.S. < 0.1% F.S. Readout unit dependent 2.50mm O.D. Teflon™ WLPI - Robust design - General, Industrial Up to +100 °C Readout unit dependent 9.5mm diameter Teflon™ (Other sheaths available) WLPI - Very robust sensor - Resistant to high temperature - Very high accuracy - Aerospace - Oil and Gas Industry -40°C to +200°C -50 mmHg to +300 mmHg (relative to atmospheric pressure) 0.5 mmHg +/- 1 mmHg or +/- 1.5% F.S. whichever...

TEMPERATURE SPECIFICATIONS -40°C to +250°C or-250°C to + 40°C 0.1°C +/-1,5°C N/A 4.8mm diameter stainless steel or ceramic, Length according to your specification Teflon™ (Other sheaths available) WLPI - Very robust - Industry Teflon™ WLPI - Great accuracy - General, Industrial 0°C to +85°C 0.01°C +/- 0.15°C < 1s 1.2mm O.D. Teflon™ / PVC tight buffer WLPI - Highest accuracy - Robust - Medical -40°C to +250°C or -250°C to + 40°C 0.1 °C +/-0,5°C 0,4s 400pm diameter Teflon™ (Other sheaths available) WLPI - High resolution - Industry -40°C to +250°C or -250°C to + 40°C 0.1°C +/-0,5°C 0,3s 1mm...

SCBG (GaAs) TEMPERATURE SPECIFICATIONS -40°C to +250°C 0.01°C +/- 1°C or better 0.007s 0.150mm O.D. and smaller Acrylic, Polyimide SCBG (GaAs) - Ultra miniature high accuracy and fast response time - Laboratory - Medical -40°C to +250°C 0.1°C +/- 1°C 0.5s 1.1mm O.D. TeflonTM SCBG (GaAs) - Excellent accuracy - General, Industrial, Cryogenic 0°C - 85°C (Higher range available) 0.01°C +/- 0.3°C Packaging dependant 0.17mm TeflonTM (Other sheaths available) SCBG (GaAs) - Excellent accuracy - Reliable & Robust design - Medical - General, Industrial, Cryogenic -40°C to +250°C 0.1°C +/-...

CUSTOMIZED READOUT UNITS SIGNAL CONDITIONING SIGNAL CONDITIONING SPECIFICATIONS Sensor compatibility Output - Interface ... Sensor compatibility Output - Interface Sensor compatibility Handheld - Battery operated Lab Industrial, Civil engineering Industrial, Lab, Medical, Dynamic measurement Physiological temperature measurements RF, MRI system, Sterilization applications WLPI SCBG (GaAs) Industrial, Lab, Medical, Dynamic measurement SCBG (GaAs) 1 50Hz Display Memory RS-232 A0: +/- 5V Handheld - Battery operated SCBG (GaAs) Display Memory SCBG (GaAs) SCBG (GaAs) UNIQUE BENEFIT: Small...

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