Following a thorough revision, the Kistler 9091B sensor is now more precise and durable than ever. The biggest force sensor in Kistler's portfolio is used in a wide variety of applications: For instance, the sensor delivers precise data in drop tower tests for material development or in the review of safety measures in nuclear power plants. 


The 9091B sensor by Kistler ensures highly accurate measurements under extreme conditions. The same level of accuracy is required during the production process of the sensor itself: If, for instance, humidity gets into the sensor while it is being assembled, it can condense on the surfaces after some time and affect the electrical insulation. To rule out any potential contamination of the sensor during its manufacturing process, Kistler assembles the 9091B sensor entirely in a clean room and uses improved bakeout and cleaning processes. Overall, the performance and durability of the sensor has been optimized along 15 different influencing factors. 


Precision for diverse measurements 

The robust sensors measure small and large forces in various applications. For instance, they determine force peaks as well as force duration and distribution during the impact of objects in drop-tower tests in material development. When installing satellite dishes, they ensure a precise adjustment and help prevent any distortions on the surface of the dish. In test reactors, the sensors provide valuable data on the behavior of radioactive corium, a viscous mass that is formed during a core meltdown. On coming into contact with other materials, corium releases extreme energy and explosive substances such as hydrogen. Based on the results, researchers can reassess safety-relevant parameters in nuclear power plants. Last but not least, the high-precision force sensors play an important role in calibration devices, such as those used by Kistler itself. 


A quartz crystal inside the sensor always ensures precise results when dynamic forces need to be assessed. Thanks to optimized manufacturing, users can now rely even more on the durability and consistently high precision of these robust sensors.