Multichannel shock spectrum analyzer
Abstract
Abstract THE INVENTION HEREIN DISCLOSED IS A MULTI-CHANNEL SHOCK SPECTRUM ANALYZER FOR AUTOMATICALLY MEASURING AND DISPLAYING A PLURALITY OF ANALYTICAL VALUES DERIVED FROM THE SPECTRUM OF A SHOCK TRANSIENT WHICH HAS BEEN APPLIED TO A TEST STRUCTURE. A SHOCK TRANSIENT MAY BE INTRODUCED TO THE TEST STRUCTURE WITH AN ELECTRODYNAMIC SHAKE TABLE, UPON WHICH THE TEST STRUCTURE MAY BE MOUNTED OR ANY OTHER APPARATUS CAPABLE OF PRODUCING A SUITABLE SHOCK TRANSIENT. THE ANALYZER INCLUDES A PLURALITY OF ANALOG COMPUTER CHANNELS EACH PROGRAMMED TO A SPECIFIED FREQUENCY SUCH THAT THE APPARATUS COVERS A WIDE RANGE OF FREQUENCIES SIMULTANEOUSLY. THE OUTPUTS OF EACH ANALYZER ELEMENT IS STORED IN ANALOG MEMORIES THE OUTPUT SIGNALS FROM THE MEMORY CIRCUITS PROVIDE A DISPLAY OF THE SHOCK TRANSIENT SPECTRUM OVER A FREQUENCY RANGE FOR THE STRUCTURE UNDER DYNAMIC TESTING.
Inventors
- 👤 Irving T Goldwater
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |