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See how Philtec fiber optic sensors solve measurement challenges in aerospace, energy, cryogenics, medical technology, vacuum systems, high-pressure environments, and advanced research applications.

Fiber Optic Cable Configurations

by Jerry Philips | July 27, 2023 | connectors, Displacement Sensor, Fiber Optic Vacuum Passthru, Fiberoptic Sensors, FO cables | 0 Comments

Philtec Fiber Optic sensors can make displacement measurements inside of mechanisms, machinery and vacuum chambers. To gain access to the measurement locations, Fiber Optic cables may be connectorized for the probe tips to be separated from the electronics. In some...

Turbine Speed Probes

by Jerry Philips | February 10, 2023 | Fiberoptic Sensors, Non-Contact Sensing, turbine speed probes | 0 Comments

The previous App Note 'Bending Light' showed that the light beam emitted from a fiber optic probe can be redirected to a different emission angle by polishing the fibers at an angle to the probe axis. A new customer wants to measure turbine speed by sensing the...

Gamma Radiation Threshold Levels

by Jerry Philips | September 12, 2025 | Gamma Radiation, Uncategorized | 0 Comments

Threshold dose Levels in Borosilicate Glass Fibers <50 rad (very low dose) No detectable changes in structure, optics, or mechanics. Any induced defects are below detection limits of spectroscopy. 10² – 10³ rad (100–1,000 rad) Beginning of trace radiation-induced...

Low Dosage Gamma Radiation

by Jerry Philips | September 12, 2025 | Uncategorized | 0 Comments

Gamma radiation can interact with borosilicate glass fibers primarily by producing ionization and electronic defects in the glass network. At very low doses (<50 rad, or <0.5 Gy), the effects are generally minimal, but a few points are worth noting: Optical...

USB Powered Sensors

Mar 15, 2015 | Fiberoptic Sensors, Miniaturized Sensors, multiplexing sensors, Non-Contact Sensing, USB Powered Sensors

Introducing our smallest and most powerful digital sensor series with USB output: the MicroDMS series (µDMS). Powered via any standard USB port, or multiplexed via any standard USB hub, this new sensor series boasts a maximum data sample rate of 16,000 samples per...

New Sensor Model for 75 mm Operating Range

Mar 28, 2014 | Fiberoptic Sensors, Non-Contact Sensing

Philtec adds the model D240 sensor having an overall operating range of 75 mm.

Probes for Internal Thread Inspection

Dec 17, 2013 | Non-Contact Sensing, Quality Control, Thread Inspection

The Problem: Inspection of the integrity of small internal threads such as M10. The Solution: Very small fiberoptic probes can be made having two diametrically opposed sensors. The probe can be used to scan the length of internally threaded holes as the probe is...

Blue Light Sensors

Jul 17, 2013 | Hot Targets, Quartz Fibers

INTRODUCING Blue Light Sensors for displacement measurements on extremely hot targets. Metals emit light energy in the red spectrum when heated above 600°C. Red-glowing parts interfere with displacement measurements of optical sensors that use red lasers or LEDs as...

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