Discriminatory hit detection in target apparatus
First Claim
1. Discriminatory hit detection apparatus for indicating when a target member has been hit by a projectile fired at said target member, comprising:
- a target member;
transducer means spaced apart from and not physically connected to said target member for detecting and selectively providing a hit indication only in response to disturbance of said target member caused by said projectile hitting or passing through said target member andmeans responsive to said transducer means output for providing said hit indication only in response to disturbance of said target member caused by said projectile hitting or passing through said target member.
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Accused Products
Abstract
A hit detection device for use in a marksmanship evaluation device for providing positive and negative reinforcement of shooting techniques immediately after each shot is fired. The hit detection device comprises a transducer spaced apart from a target member and detects and provides a hit indication output when the target is hit. In a preferred embodiment, the transducer in combination with electronic circuitry provide discrimination such that a hit indication output is only provided when the target member is actually hit by a projectile directly and no output is provided if the target is hit by a ricochet or is disturbed by any other external source such as the wind, sonic booms, etc. In a further preferred embodiment, the target member is three-dimensional and at least partially surrounds the transducer to shield the same from air pressure disturbances caused by projectiles passing by but not actually hitting the target member.
22 Citations
22 Claims
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1. Discriminatory hit detection apparatus for indicating when a target member has been hit by a projectile fired at said target member, comprising:
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a target member; transducer means spaced apart from and not physically connected to said target member for detecting and selectively providing a hit indication only in response to disturbance of said target member caused by said projectile hitting or passing through said target member and means responsive to said transducer means output for providing said hit indication only in response to disturbance of said target member caused by said projectile hitting or passing through said target member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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22. target representation. .Iaddend. .Iadd.29. An apparatus for use in marksmanship training to provide a hit indication of a projectile hitting or passing through a target comprising:
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an acoustic transducer responsive to vibrations or disturbances caused by the projectile hitting or passing through the target, said transducer being positioned behind and not physically connected to a front surface of the target relative to the direction of approach of said projectile to the target, and a circuit means responsive to an output of said acoustic transducer for providing said hit indication only when a projectile hits or passes through said target. .Iaddend. .Iadd.30. Apparatus according to claim 29, wherein said acoustic transducer output varies in amplitude depending upon the magnitude of said vibrations or disturbances, said circuit means being operative to provide said hit indication only when said acoustic transducer output amplitude exceeds a predetermined level. .Iaddend. .Iadd.31. Apparatus according to claim 30 wherein said acoustic transducer is responsive to air pressure disturbances. .Iaddend. .Iadd.32. Apparatus according to claim 31, wherein said target is three-dimensional and at least partially surrounds said acoustic transducer to thereby shield said acoustic transducer from air pressure disturbances caused by projectiles passing by but not hitting or passing through said target. .Iaddend. .Iadd.33. Apparatus according to claim 32, wherein said target substantially surrounds said acoustic transducer. .Iaddend. - View Dependent Claims (20, 21)
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Specification