ANALYTICAL CHEMISTRY
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t/usf sei fAe fc/tois of top o/ instrument for the desired range and zero, and this AZAR recorder is adjusted to your exact specs . . . spreads any millivolt value from one to twenty across the full chart width, for measuring Force, Weight, Temperature, Speed, Voltage or any condition which yields an electrical recorder signal.
COMPLEX ROCKET-TESTING ROUTINES
Simplified by Speedomax® adjustable-zero adjustable-range Recorders • Rocket engine development at Bell Aircraft Corp., of Buffalo, Ν. Υ. involves several unique instrument requirements. The nature of rocket combustion problems demands highly versatile in struments . . . instruments that can be dial-set to meet a wide variety of new test conditions. Further more, the instruments must also simultaneously record a combination of motor parameters. The highly flexible Speedomax adjustable zero adjust able range (AZAR*) Recorder provides Bell with just the right instrument combination for speedy, accurate test results. Data for use in the engineering, designing and testing of rocket motors are obtained from pressure, temperature, force and flow measurements. Elec tronic transducers provide a d-c voltage propor tional to the quantity measured; this signal is relayed to the AZAR Recorders through the patch ing network located in the center of the panel.
Various types of primary elements are used because of the extreme ranges encountered. All recorders are read in millivolts and converted to the measured quantity during data reduction. Adjust ment of the range and zero makes it possible to read any pre-selected portion of the instrument scale. Duplicate information is relayed to remotely located consoles for the convenience of engineers at the test stands. This is accomplished by electrical signals fed from the retransmitting slidewires of the recorders. Jog pen (used at Bell for time correlation between machines) and other accessory features to meet individual requirements can be incorporated in the versatile AZAR Recorder. A general description of this instrument is avail able, and will be especially useful if you can describe to us the nature of your recording problem. Contact our nearest office or write 4906 Stenton Ave., Philadelphia 44, Penna. * L&N
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