Page 7 - Spec Tech Vol 1 Issue 04
P. 7

SPACE SENSORS




















































         THIN FILM SENSORS
         Thin film sensors are precise, stable,             diaphragm which is in direct contact with  the
         dependable and cheap,  offering numerous           media being measured. With this
         advantages over conventional                       technology,  there is no transfer medium in
         sensors. Most applications of thin film sensors    between the media and sensing  bridge
         take advantage of their small size  and the        measuring the pressure. This eliminates the
         options they provide engineers - their             damaging  expansion or shrinkage that can
         distinctive housing  being an especially useful    occur in the MEMS device.
         feature for particular applications.               In a nutshell, thin film transducers work where

         Thin film sensors are more robust and less         other transducers fail. They can easily withstand
         complex than MEMS  sensors. Their simple           dynamic pressures and extreme temperatures
         structure makes them easier to                     while providing the most accurate and
         manufacture  at a lower cost and they provide      reliable  readings. Thin film sensors are
         incredible accuracy and reliability even in        especially suitable for harsh  operational
         harsh operating conditions such as extreme         conditions such as pressure measurements
                                       o
         temperatures  (less than –40 F and as high         in  aerospace applications. If you’re searching
                o
         as 392 F). In thin film sensor technology, a       for a transducer that can do it all in a lightweight,
         piezoresistive strain gauge bridge is              durable package, look no further than Custom
         deposited directly  on the cell’s stainless-steel   Control Sensors’ Gen 3 thin film pressure
                                                            transducers.




         Space Explorer 2022                                                                                                                                                    7
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