Precision Fiber Optic Sensors
for Extreme Environments
Accurate, non-contact measurement of displacement, vibration, and position—even in cryogenic, vacuum, and high-pressure conditions.
Trusted in Critical Sectors
AEROSPACE
CRYOGENICS
ENERGY
MEDICAL
R&D
Innovation Since 1988
Engineered for Measurements Where Others Fail
Welcome to Philtec, Inc., a manufacturer of custom fiber optic displacement sensor systems. Based in Annapolis, Maryland, we have been providing innovative sensing solutions for over three decades.
Our sensors are built in the USA and sold through a global network. Our engineers help you design specialized sensors to meet your most demanding application requirements.
“Their technologies enable our teams to measure pumps’ axial and radial gaps during on-engine operation. Philtec’s equipment is reliable and accurate. The results are useful to anchor our analytical models to experimental data.”
Real-time Analysis
0.0001 mm
35+
Years of Excellence
Why Choose Fiber Optic Sensors?
Superior performance in areas where electrical or acoustic sensors fail.
EMF Immunity
Complete resistance to electromagnetic interference and high-voltage environments.
Extreme Resilience
Operates in Cryogenic (liquid oxygen), high vacuum, and high pressure atmospheres.
Sub-Micron Precision
Accurate displacement measurements down to the nanometer scale without physical contact.
Our Hardware
Explore Sensor Solutions
Standard and custom probes designed for specific reflectance and range requirements.
D Model Sensors
Reflectance Dependent. Ideal for motion parallel to the sensor axis and high-speed vibration.
RC Model Sensors
Reflectance Compensated. Provides stable measurement even when target surface reflectivity changes.
Vacuum Hardware
Specialized feedthroughs and materials for Ultra-High Vacuum and Extreme Pressure environments.