Static actuator tester and method

Details Static actuator tester and method Static actuator tester and method

1997-08-21

1999-04-27

Patidar, Jay M.

Electricity: measuring and testing

Magnetic

Magnetic information storage element testing

324538, 324763, 228104, G01R 3102, G01R 31302

Patent

active

058983031

ABSTRACT:
A test method and apparatus for use with a plurality of magnetically sensitive elements having a fixed relative physical sequence, and with a plurality of electrical lead sets through each of which the magnetic field being experienced by a respective one of said magnetically sensitive elements can be sensed. The method includes the steps of placing the magnetically sensitive elements in a variable magnetic field and determining a respective magnetic field setting at which each given one of the lead sets indicates the presence of a magnetic null. The results of such a test can be used to determine which lead sets are connected to which magnetic elements, and/or to determine whether at least one lead set is mis-connected.

REFERENCES:
patent: 5285948 (1994-02-01), Rupp et al.
patent: 5589777 (1996-12-01), Davis et al.
Texas Instruments, "TLS24508DBT (MAXTOR) 8 Channel Magneto-Resistive/Thin Film Read/Write Preamplifier," Preliminary Specification, Rev. 0.2 (Mar. 1996).

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