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Fiber optic pressure sensors for high-precision measurement
Althen's Fiber Optic Pressure Sensors offer cutting-edge technology for applications requiring high-precision pressure measurement in environments where traditional sensors may fail. These sensors utilize optical fibers to detect pressure changes, making them immune to electromagnetic interference (EMI) and ideal for use in harsh conditions, such as in the oil and gas, aerospace, and medical industries. With their ability to provide accurate and stable measurements in extreme temperatures and corrosive environments, Althen’s fiber optic pressure sensors ensure reliable performance where other technologies may struggle.
Advanced solutions for challenging environments
Our Fiber optic pressure sensors are engineered to meet the demands of complex and challenging environments. These sensors are perfect for applications requiring long-term stability and minimal signal degradation over long distances. Their lightweight and flexible design allows for easy installation in tight spaces, while their non-conductive nature makes them safe for use in explosive or high-voltage areas. Our fiber optic pressure sensors deliver precise, dependable data in your most critical applications.
Things to consider regarding Fiber optic pressure sensors
- Environmental suitability: Choose sensors that can operate effectively in your specific environment, especially in high-temperature, corrosive, or EMI-prone areas.
- Measurement range: Ensure the sensor’s pressure range aligns with your application’s requirements, providing accurate measurements across the expected range.
- Installation constraints: Consider the sensor’s size, flexibility, and installation requirements, especially for tight or hard-to-access spaces.
- Signal integrity: Opt for sensors with robust signal transmission capabilities, particularly if you need long-distance data transmission without degradation.
- Compatibility: Ensure the sensor integrates well with your existing systems and data acquisition tools.
These tips will help you select the right fiber optic pressure sensor for reliable and accurate performance in challenging environments. Our team of experts is ready to assist you in selecting the ideal fiber optic pressure sensor tailored to your specific application needs. Whether you require guidance on choosing the right sensor or comprehensive support throughout your entire project, our specialists provide personalized solutions to ensure optimal performance and reliability.
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Frequently asked questions about Fiber optic pressure sensors
Answers to the most important technical questions
How does the measuring principle of fibre-optic pressure sensors work?
WLPI stands for White Light Polarization Interferometry. With this principle, pressure is not measured electrically at the measuring point, but through an optical change inside a fibre-optic sensor. The measuring system consists of the fibre-optic pressure sensor and an evaluation unit that analyses the optical signal.
Inside the sensor head there is a very small optical measuring structure, often based on the principle of a Fabry-Pérot interferometer. In simple terms, a tiny optical cavity is created between two reflective surfaces. When pressure is applied to the sensing element, a diaphragm deforms slightly. This changes the distance within the optical cavity. This change in distance affects the phase or interference pattern of the reflected light. The WLPI evaluation unit detects this change and calculates the pressure value from it.
The advantage of this principle is that no electrical signal is required at the measuring point. The information is transmitted as light through the optical fibre. As a result, WLPI pressure sensors are immune to electromagnetic interference and are particularly suitable for environments with high voltage, strong EMI/RFI influences, hazardous areas or long transmission distances.
For the application, this means that fibre-optic pressure sensors with WLPI can precisely detect very small pressure changes while also being used in demanding environments where conventional electrical pressure sensors reach their limits. Althen supports you in selecting the right fibre-optic pressure measurement solution for the pressure range, temperature, medium, installation situation and evaluation unit.