Applications Notes
See how Philtec fiber optic sensors solve measurement challenges in aerospace, energy, cryogenics, medical technology, vacuum systems, high-pressure environments, and advanced research applications.
Temperature Limits
Planning an installation in a high-temperature or extreme environment? Download Application Note 71 to verify the operational temperature ranges for our fiberoptic sensors. Use this reference to match the correct sensor tip, cable jacket, and electronics to your project's specific thermal profile.
Threaded Tips
The specifications listed represent our standard offerings with fixed pricing. If your application requires a custom thread diameter or a non-standard length, please submit a Request for Quotation (RFQ) to our factory for a custom manufacturing assessment.
Wifi Sensors
Experience the next generation of precision measurement with Philtec’s new WiFi Displacement Sensors. Designed for maximum flexibility, these wireless systems deliver accurate non-contact gap and angle data without the constraints of traditional cabling.
Reflectance Dependency
Explains how D-type fiber optic sensors produce output proportional to both distance and target reflectance. Covers near-side vs far-side operation, in-situ calibration for different materials, and when D-type sensors are recommended for single-axis vibration with constant reflectivity.
Reflectance Compensation
Describes RC (Reflectance Compensated) sensors that use ratiometric processing of two detector channels to measure distance independently of target reflectivity. Ideal for rotating, translating, or varying-surface targets such as bearing dynamics and in-process dimensional control.
RC Sensors Illustrated
Visual guide to reflectance compensated sensor operation with examples including bearing/rotor dynamics, in-process dimensional control, part-to-part measurements, and Z-axis distance with X/Y travel. Explains when RC sensors are required over D-type sensors.
Reflection Interference
Guidance on avoiding reflection interference when mounting fiber optic probe tips near sidewalls or adjacent probes. Covers numerical aperture, beam angle by fiber type, target spot size, and minimum spacing calculations for Philtec sensor models.
Measurements in Fluids
Explains how submersion in fluids collimates light rays and extends sensor operating range by approximately 30%. Includes refractive index table, calibration requirements per medium, and Philtec experience with cryogenic rocket engine fluids (LH2, LOX, methane).
FO Sensor System Configurations
Overview of four Philtec sensor system architectures: one-piece integrated, two-piece with in-line or bulkhead connector, three-piece vacuum passthru, and three-piece extension cable systems. Reference for specifying connector and amplifier layouts.