Detectors

Measuring Cryogenic Turbopump Speed

Background An axial-flow pump, or AFP, is a common type of pump that essen­tially consists of a propeller (an axial impeller) in a pipe. Cryogenic turbopumps (CTP) are the heart of a rocket engine. With today’s generation of reusable heavy launch space vehicles, CTPs supply pressurized subcooled fuel and oxidizer fluids which are mixed and … Continue reading

Blog, Detectors, Fiber Optics

Measuring Embedded Objects

Philtec specializes in the design of fiber optic sensor systems for gaining access to hard-to-reach targets. In March 2019, several dozen model D47 sensors were delivered with long fiber optic cables and very small 90° probes as seen here. The fiber optic cable lengths varied from 21 ft (6.4 m) to 55 ft (16.8 m)… Continue reading

Blog, Detectors, Fiber Optics

Space Telescope Lens Tests

It’s not often we discover how well Philtec sensors perform for customers. The Euclid Satellite project is a good example of their sensors being used with excellent results in cryogenic conditions. A technical paper published in 2012  describes how Philtec’s high precision sensors were successfully used at 150°K to verify the distortion of lens holders to … Continue reading

Blog, Detectors

MCP-PMT for LIDAR Applications

Photonis has launched a new Micro-Channel Plate/PhotoMultiplier Tube (MCP-PMT) for LIDAR applications. MCP-PMTs enable detection from single photon to few GHz in photon burst mode and few 100 MHz in continuous illumination thanks to the high linearity properties. Along with the extremely low dark rate, the new detector is capable of 8 orders of magnitude dynamic … Continue reading

Blog, Detectors