Claims
- 1. A sensor assembly for a stringed musical instrument having a plurality of movable strings comprising:
- a case having a longitudinal channel;
- a primary magnet disposed in said longitudinal channel;
- at least one coil disposed in said longitudinal channel; and
- at least one secondary magnet disposed in said longitudinal channel between said primary magnet and said at least one coil.
- 2. A sensor assembly as set forth in claim 1 wherein said primary magnet is a flexible permanent magnetic strip.
- 3. A sensor assembly as set forth in claim 2 wherein said permanent magnetic strip is rectangular in shape.
- 4. A sensor assembly as set forth in claim 1 wherein said case extends longitudinally and has a "U" shape.
- 5. A sensor assembly for a stringed musical instrument having a plurality of movable strings comprising:
- a case having a longitudinal channel;
- a magnetic lining disposed in said longitudinal channel;
- at least one coil disposed in said longitudinal channel; and
- a plurality of secondary magnets positioned in said longitudinal channel between said magnetic lining and said at least one coil such that magnetic fields created by said magnetic lining and said secondary magnets are constructively added.
- 6. A sensor assembly for a stringed musical instrument having a plurality of movable strings comprising:
- a case having a longitudinal channel;
- a magnetic lining disposed in said longitudinal channel;
- at least one coil disposed in said longitudinal channel;
- at least one secondary magnet disposed in said longitudinal channel between said magnetic lining and said at least one coil; and
- a plurality of comb pieces disposed within said coil for locking said coil within said longitudinal channel.
- 7. A sensor assembly as set forth in claim 6 including a spacer disposed between said comb pieces and made of a non-conductive, non-magnetic insulating material.
- 8. A sensor assembly for a stringed musical instrument having a plurality of movable strings comprising:
- a case including a base wall and at least two side walls extending outwardly from said base wall, said base wall and said side walls forming a longitudinal channel;
- a magnetic lining disposed in said longitudinal channel along said base wall and said side walls;
- at least one coil disposed in said longitudinal channel; and
- a plurality of secondary magnets disposed in said longitudinal channel and adjacent said magnetic lining and adjacent said at least one coil such that magnetic fields created by said magnetic lining and said secondary magnets are constructively added.
- 9. A sensor assembly as set forth in claim 8 wherein said at least one coil comprises a bobbin extending longitudinally and spaced laterally and wire wrapped around said bobbin.
- 10. A sensor assembly as set forth in claim 8 including a plurality of comb pieces disposed within said at least one coil and a spacer disposed between said comb pieces.
- 11. A sensor assembly as set forth in claim 10 wherein each of said comb pieces have a leg portion and an arm portion extending perpendicular to said leg portion.
- 12. A sensor assembly as set forth in claim 11 wherein said arm portion has a longitudinal length greater than a longitudinal length of said leg portion.
- 13. A sensor assembly as set forth in claim 11 wherein said leg portion has a height greater than a height of said coil and greater than a lateral width of said arm portion.
- 14. A sensor assembly as set forth in claim 11 wherein said arm portion has a plurality of longitudinally spaced teeth.
- 15. A sensor assembly as set forth in claim 10 wherein said spacer is made of a non-conductive, non-magnetic insulating material.
- 16. A sensor assembly as set forth in claim 8 wherein said magnetic lining is rectangular in shape.
- 17. A sensor assembly as set forth in claim 8 wherein said case extends longitudinally and has a U-shape.
- 18. A sensor assembly as set forth in claim 8 wherein said case has an arcuate base wall and a pair of planar side walls parallel to each other to form said longitudinal channel.
- 19. A sensor assembly as set forth in claim 8 wherein said secondary magnets are rectangular in shape.
- 20. A sensor assembly for a stringed musical instrument having a plurality of movable strings comprising:
- a case including a base wall and at least two side walls extending outwardly from said base wall, said base wall and said side walls forming a longitudinal channel;
- a magnetic lining disposed in said longitudinal channel along said base wall and said side walls;
- at least one coil disposed in said longitudinal channel and having a bobbin extending longitudinally and spaced laterally and wire wrapped around said bobbin and a plurality of comb pieces disposed within said at least one coil; and
- a plurality of secondary magnets disposed in said longitudinal channel and adjacent said magnetic lining and adjacent said at least one coil such that magnetic fields created by said magnetic lining and said second magnets are constructively added.
CROSS-REFERENCE TO RELATED APPLICATION(S)
This application is a Continuation-In-Part of application U.S. Ser. No. 08/231,115, filed Apr. 22, 1994, now U.S. Pat. No. 5,464,948.
US Referenced Citations (111)
Continuation in Parts (1)
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Number |
Date |
Country |
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231115 |
Apr 1994 |
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