Abstract
Abstract : Design has been completed for a rocket probe system which will determine air density at altitudes of 70 to 130 km. The design differs from that of similar probes presently being used for obtaining density measurements primarily in the signal processing electronics. It employs a digital processor which encodes 50 complete acceleration readings per second and generates a PCM output signal whereas previous probes have been analog in nature and have made use either of a multisubcarrier FM-FM system or a commutated signal subcarrier FM-FM system. In order to confirm the validity of the electrical design, a prototype unit has been fabricated and bench tested. Temperature tests have been performed on the prototype unit and indicate that over a 0 to 60C temperature range, an accuracy figure of plus or minus 0.1 percent has been achieved for the signal processing electronics portion of the probe system. This represents an order of magnitude improvement in accuracy over a typical FM- FM system. Power for the system is supplied by an internal battery pack consisting of seven rechargeable nickel-cadmium cells which have a capacity sufficient to operate the probe system for a duration of 40 minutes at room temperature.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
