Claims
- 1. An apparatus for sensing mechanical vibrations representative of an intruder and feeding representative signals between signal processing modules;
- means for generating electrical signals in response to the mechanical vibrations caused by the intruder;
- means disposed adjacent the generating means for providing electrical power and electrical timing pulses to the signal processing modules;
- means disposed adjacent the generating means and the electrical power and timing pulse providing means for transmitting optical signals representative of the generated electrical signals; and
- means disposed about the generating means, the electrical power providing means and the optical signal transmitting means for encasing them.
- 2. An apparatus according to claim 1 in which the generating means is a number of piezoelectric elements coupled together in a line.
- 3. An apparatus according to claim 2 in which the providing means is at least one wire.
- 4. An apparatus according to claim 3 in which the transmitting means is at least one optical fiber.
- 5. An apparatus according to claim 4 in which the encasing means is a common tube.
STATEMENT OF GOVERNMENT INTEREST
The invention described herein may be manufactured and used by or for the government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
1172272 |
Nov 1969 |
GBX |