TY - JOUR
AU - Beck, H V
AB - The Physics Exhibition I965 structures. Also shown by the College was an optical generated is used to operate a counter or other device. dipstick consisting of a Perspex rod down which a beam of ne LM~terCOUnt’ was shown in use in a drip feed control system. 1 CI displayed a flow ultramicroscope for size light passes, which is totally internally reflected at a roof of particles in suspension. The scintillations are prism on the lower end of the rod, and returns to a ,photocell at the top. When the lower end of the rod dips into a detected with a photomultiplier and the signals passed to a transparent liquid, e.g. a liquefied gas, the total internal pbe height analyser. Knowing the relationship between reflection is destroyed and no light reaches the detector. he intensity of scattered light and particle size the distri- A production version of this device is being made by Hird- bution can be obtained. Also concerned with particle sizing was the apparatus developed by the College of Aero- Brown Ltd. ‘Betalights’ in a wide range of sizes and colours were to nautics, Here a photographic transparency of the region be seen on the stand of Saunders 
TI - Transducers and electronic devices
JF - Journal of Scientific Instruments
DO - 10.1088/0950-7671/42/8/303
DA - 1965-08-01
UR - https://www.deepdyve.com/lp/iop-publishing/transducers-and-electronic-devices-xQZcvAt5UB
SP - 517
VL - 42
IS - 8
DP - DeepDyve
ER -