Disk Drive Emulator And Method Of Use Thereof

• US 20100083732A1
• Filed: 10/06/2008
• Published: 04/08/2010
• Est. Priority Date: 10/06/2008
• Status: Active Grant

• Current Assignee: Teradyne Incorporated
• Original Assignee: Teradyne Incorporated
• Inventors: Merrow, Brian S., DaSilva, Robert A.
• Granted Patent: US 8,499,611 B2
• Time in Patent Office: Days
• US Class Current: 73/1.820
• CPC Class Codes: G01H 1/00 Measuring characteristics of vibrations in solids by using direct conduction to the detector G01H9/00, G01H11/00 take precedence

Abstract

A disk drive emulator for testing a test slot of a disk drive testing system includes an emulator body, an interface connecter disposed on the emulator body, and at least one vibration sensor disposed on the emulator body. The emulator body comprises a material having a tensile modulus of at least 40×10̂6 Psi.

Claims

1. A disk drive emulator for testing a test slot of a disk drive testing system, the disk drive emulator comprising:

an emulator body;

an interface connecter disposed on the emulator body; and

at least one vibration sensor disposed on the emulator body;

wherein the emulator body comprises a material having a tensile modulus of at least 40×

106 Psi.

2. The disk drive emulator of claim 1, wherein the emulator body comprises a material having a tensile modulus of at least 85×

106 Psi.

3. The disk drive emulator of claim 1, wherein the emulator body comprises carbon fiber.

4. The disk drive emulator of claim 1, wherein the emulator body has a first bending mode at greater than about 8 kHz.

5. The disk drive emulator of claim 1, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body equidistantly from a center of gravity of the emulator body.

6. The disk drive emulator of claim 1, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body and spaced about 2 inches (51 mm) along longitudinal and transverse axes defined by the emulator body from an intersection of the longitudinal and transverse axes.

7. The disk drive emulator of claim 6, wherein the intersection of the longitudinal and transverse axes coincides with at least one of a geometric center of the emulator body and a center of gravity of the emulator body.

8. The disk drive emulator of claim 1, wherein the emulator body is substantially rectangular shaped having top and bottom surfaces, a vibration sensor being disposed near each corner of the top and bottom surfaces.

9. The disk drive emulator of claim 1, wherein the emulator body defines an electronics region, a motor region, and a head region, a vibration sensor being disposed in each region.

10. The disk drive emulator of claim 1, wherein the emulator body defines at least one weight receiver configured to receive a weight.

11. A method of validating a test slot of a disk drive testing system, the method comprising:

establishing a connection between a disk drive emulator and the test slot; and

performing diagnostic testing on the test slot, the diagnostic testing comprising monitoring a vibration level of at least one region of the disk drive emulator;

wherein the disk drive emulator comprises;

an emulator body;

an interface connecter disposed on the emulator body; and

at least one vibration sensor disposed on the emulator body;

wherein the emulator body comprises a material having a tensile modulus of at least 40×

106 Psi.

12. The method of claim 11, wherein the emulator body comprises a material having a tensile modulus of at least 85×

106 Psi.

13. The method of claim 11, wherein the emulator body comprises carbon fiber.

14. The method of claim 11, wherein the emulator body has a first bending mode at greater than about 8 kHz.

15. The method of claim 11, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body equidistantly from a center of gravity of the emulator body.

16. The method of claim 11, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body and spaced about 2 inches (51 mm) along longitudinal and transverse axes defined by the emulator body from an intersection of the longitudinal and transverse axes.

17. The method of claim 16, wherein the intersection of the longitudinal and transverse axes coincides with at least one of a geometric center of the emulator body and a center of gravity of the emulator body.

18. The method of claim 11, wherein the emulator body is substantially rectangular shaped having top and bottom surfaces, a vibration sensor being disposed near each corner of the top and bottom surfaces.

19. The method of claim 11, wherein the emulator body defines an electronics region, a motor region, and a head region, a vibration sensor being disposed in each region.

20. The method of claim 11, wherein the emulator body defines at least one weight receiver configured to receive a weight.

21. A disk drive emulator for testing a test slot of a disk drive testing system, the disk drive emulator comprising:

an emulator body;

an interface connecter disposed on the emulator body; and

at least one vibration sensor disposed on the emulator body;

wherein the emulator body includes weight receivers configured to each receive a weight.

22. The disk drive emulator of claim 21, wherein the emulator body comprises a material having a tensile modulus of at least 85×

106 Psi.

23. The disk drive emulator of claim 21, wherein the emulator body comprises carbon fiber.

24. The disk drive emulator of claim 21, wherein the emulator body has a first bending mode at greater than about 8 kHz.

25. The disk drive emulator of claim 21, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body equidistantly from a center of gravity of the emulator body.

26. The disk drive emulator of claim 21, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body and spaced about 2 inches (51 mm) along longitudinal and transverse axes defined by the emulator body from an intersection of the longitudinal and transverse axes.

27. The disk drive emulator of claim 26, wherein the intersection of the longitudinal and transverse axes coincides with at least one of a geometric center of the emulator body and a center of gravity of the emulator body.

28. The disk drive emulator of claim 21, wherein the emulator body is substantially rectangular shaped having top and bottom surfaces, a vibration sensor being disposed near each corner of the top and bottom surfaces.

29. The disk drive emulator of claim 21, wherein the emulator body defines an electronics region, a motor region, and a head region, a vibration sensor being disposed in each region.

30. A disk drive emulator for testing a test slot of a disk drive testing system, the disk drive emulator comprising:

an emulator body;

an interface connecter disposed on the emulator body; and

at least one vibration sensor disposed on the emulator body;

wherein the emulator body comprises carbon fiber.

31. The disk drive emulator of claim 30, wherein the emulator body comprises a material having a tensile modulus of at least 85×

106 Psi.

32. The disk drive emulator of claim 30, wherein the emulator body has a first bending mode at greater than about 8 kHz.

33. The disk drive emulator of claim 30, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body equidistantly from a center of gravity of the emulator body.

34. The disk drive emulator of claim 30, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body and spaced about 2 inches (51 mm) along longitudinal and transverse axes defined by the emulator body from an intersection of the longitudinal and transverse axes.

35. The disk drive emulator of claim 34, wherein the intersection of the longitudinal and transverse axes coincides with at least one of a geometric center of the emulator body and a center of gravity of the emulator body.

36. The disk drive emulator of claim 30, wherein the emulator body is substantially rectangular shaped having top and bottom surfaces, a vibration sensor being disposed near each corner of the top and bottom surfaces.

37. The disk drive emulator of claim 30, wherein the emulator body defines an electronics region, a motor region, and a head region, a vibration sensor being disposed in each region.

38. The disk drive emulator of claim 30, wherein the emulator body defines at least one weight receiver configured to receive a weight.

39. A method of validating a test slot of a disk drive testing system, the method comprising:

establishing a connection between a disk drive emulator and the test slot; and

performing diagnostic testing on the test slot, the diagnostic testing comprising monitoring a vibration level of at least one region of the disk drive emulator;

wherein the disk drive emulator comprises;

an emulator body;

an interface connecter disposed on the emulator body; and

at least one vibration sensor disposed on the emulator body;

wherein the emulator body comprises carbon fiber.

40. The method of claim 39, wherein the emulator body comprises a material having a tensile modulus of at least 85×

106 Psi.

41. The method of claim 39, wherein the emulator body has a first bending mode at greater than about 8 kHz.

42. The method of claim 39, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body equidistantly from a center of gravity of the emulator body.

43. The method of claim 39, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body and spaced about 2 inches (51 mm) along longitudinal and transverse axes defined by the emulator body from an intersection of the longitudinal and transverse axes.

44. The method of claim 43, wherein the intersection of the longitudinal and transverse axes coincides with at least one of a geometric center of the emulator body and a center of gravity of the emulator body.

45. The method of claim 39, wherein the emulator body is substantially rectangular shaped having top and bottom surfaces, a vibration sensor being disposed near each corner of the top and bottom surfaces.

46. The method of claim 39, wherein the emulator body defines an electronics region, a motor region, and a head region, a vibration sensor being disposed in each region.

47. The method of claim 39, wherein the emulator body defines at least one weight receiver configured to receive a weight.

48. A disk drive emulator for testing a test slot of a disk drive testing system, the disk drive emulator comprising:

an emulator body;

an interface connecter disposed on the emulator body; and

at least one vibration sensor disposed on the emulator body;

wherein the emulator body has a width of about 70 mm.

49. The disk drive emulator of claim 48, wherein the emulator body has a height of between about 9.5 mm and about 19 mm.

50. The disk drive emulator of claim 48, wherein the emulator body comprises carbon fiber.

51. The disk drive emulator of claim 48, wherein the emulator body has a first bending mode at greater than about 8 kHz.

52. The disk drive emulator of claim 48, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body equidistantly from a center of gravity of the emulator body.

53. The disk drive emulator of claim 48, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body and spaced about 2 inches (51 mm) along longitudinal and transverse axes defined by the emulator body from an intersection of the longitudinal and transverse axes.

54. The disk drive emulator of claim 53, wherein the intersection of the longitudinal and transverse axes coincides with at least one of a geometric center of the emulator body and a center of gravity of the emulator body.

55. The disk drive emulator of claim 48, wherein the emulator body is substantially rectangular shaped having top and bottom surfaces, a vibration sensor being disposed near each corner of the top and bottom surfaces.

56. The disk drive emulator of claim 48, wherein the emulator body defines an electronics region, a motor region, and a head region, a vibration sensor being disposed in each region.

57. The disk drive emulator of claim 48, wherein the emulator body defines at least one weight receiver configured to receive a weight.

58. A method of validating a test slot of a disk drive testing system, the method comprising:

establishing a connection between a disk drive emulator and the test slot; and

performing diagnostic testing on the test slot, the diagnostic testing comprising monitoring a vibration level of at least one region of the disk drive emulator;

wherein the disk drive emulator comprises;

an emulator body;

an interface connecter disposed on the emulator body; and

at least one vibration sensor disposed on the emulator body;

wherein the emulator body has a width of about 70 mm.

59. The method of claim 58, wherein the emulator body has a height of between about 9.5 mm and about 19 mm.

60. The method of claim 58, wherein the emulator body has a first bending mode at greater than about 8 kHz.

61. The method of claim 58, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body equidistantly from a center of gravity of the emulator body.

62. The method of claim 58, wherein first, second, third, and fourth vibration sensors are disposed on the emulator body and spaced about 2 inches (51 mm) along longitudinal and transverse axes defined by the emulator body from an intersection of the longitudinal and transverse axes.

63. The method of claim 62, wherein the intersection of the longitudinal and transverse axes coincides with at least one of a geometric center of the emulator body and a center of gravity of the emulator body.

64. The method of claim 58, wherein the emulator body is substantially rectangular shaped having top and bottom surfaces, a vibration sensor being disposed near each corner of the top and bottom surfaces.

65. The method of claim 58, wherein the emulator body defines an electronics region, a motor region, and a head region, a vibration sensor being disposed in each region.

66. The method of claim 58, wherein the emulator body defines at least one weight receiver configured to receive a weight.