The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 2006
Filed:
Jan. 14, 2005
John M. Shipman, Albuquerque, NM (US);
Eric T. Judkins, Albuquerque, NM (US);
J. Rick Martin, Rio Rancho, NM (US);
Daniel E. Burkholder, Maurepas, LA (US);
John M. Shipman, Albuquerque, NM (US);
Eric T. Judkins, Albuquerque, NM (US);
J. Rick Martin, Rio Rancho, NM (US);
Daniel E. Burkholder, Maurepas, LA (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A system for precisely measuring muzzle exit velocity of a 'muzzle loaded' mortar projectile fired from a mortar tube using two back-biased Hall effect sensors for projectile gas ring channel detection. The system includes a back-biased Hall effect sensor block, a digital resolver electronic circuit and a computer software interface. The back-biased Hall effect sensors are located in a calibrated sensor block attached to a mortar tube. As the projectile metal casing passes a face of the sensors, the sensors trigger and release, providing two electronic pulses. The pulse edges are captured in the resolver electronics, containing a discriminator circuit for filtering all input pulses to distinguish between a projectile loading event and a projectile firing event. Once a valid firing event is detected, an output of precision timers is presented serially to a computer where it is processed and displayed by a computer software interface.