| 摘要 |
An electrical, projectile penetration sensing target includes a pair of laminated sheets including a polymer resin coated brittle, calendered aluminum, wire screen and a polymer resin coated, fiberglass web, the laminated sheets being separated by and binded to a sheet of small celled foamed polypropylene. The outer faces of the webs have bonded thereto sheets of the foamed cellular polypropylene. The wire screens are electrically connected to a resistance responsive network whose output is a relatively wide pulse which is coupled to a recording device.
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