Test & measurement
‘‘
The insights we obtain from
this new design will give us a much greater understanding of interstellar chemistry...
’’
during chemical reactions. “Until we built this spectrometer, it required very complex instruments to use microwave spectroscopy to investigate chemical reactions,” Carroll adds. “Now we are able to investigate the detailed reaction dynamics of intermediary steps to see how it actually happens. The processes that dominate chemistry and physics change from those of higher temperatures when you are close to absolute zero, i.e., the temperature in many parts of space, hence this research by the Smithsonian Astrophysical Observatory.” This new spectrometer will
provide insights into the chemistry of
the interstellar medium, i.e., what is in the space between planets and stars. That material is the feedstock for new solar systems and has a profound effect on how planets are formed - and even the origins of life. Carroll concludes, “The insights we
obtain from this new design will give us a much greater understanding of interstellar chemistry, and we are finding that complex mixture analysis at ultra-cold temperatures is an exciting new direction for our us.”
Spectrum Instrumentation www.spectrum-
instrumentation.com
PiL offers tried-and-tested solutions for applications in which the ultrasonic sensors cannot be directly aligned with the object being monitored.
The M4i.2230-x8 digitiser card from Spectrum Instrumentation acquires analogue signals with 5 Gigasamples per second.
Instrumentation Monthly March 2022
ApplicATion know-how is key The reliability of measurement solutions not only depends on the use of robust sensor technology, but also on specific design features of the selected sensor models, their application-specific configuration, and correct placement. That is why PiL, as a specialist for industrial ultrasonic sensor technology, supports its customers with comprehensive application know-how, detailed consultation, and where required, is happy to carry out customised modifications of its products as required.
PIL Sensoren
www.pil.de 51
Measuring around corners with ultrasonic sensors
U
ltrasonic sensors always emit their sound waves “straight forwards” by nature. However, the spatial conditions and installation location make it difficult to directly align the sensor housing
with the object being monitored in many applications. Redirecting the sound waves using suitable angled reflectors is a practical solution for this problem. For example, it is not possible to make new installation
openings for ultrasonic sensors in many containers whose interiors needs to be monitored. In these cases, the sensors can simply be fitted parallel to the wall of the container on terminal blocks and the sound waves emitted from the sensors can be redirected through an existing opening using 90° reflectors. PiL Sensoren, a leading specialist for ultrasonic sensors, offers tried-and-tested solutions and a comprehensive range of mounting accessories for these types of application. Alongside ultrasonic sensors suitable for every requirement, the PiL product range includes optimally aligned 90° plastic reflectors, focusing attachments, and flexible metal reflectors for adjusting the angle of the sound wave to the specific requirements of the application.
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