EXHIBIT 31.1

    CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO RULE 13A-14(a)/RULE
          15D-14(a) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

I, John W. Wood Jr., certify that:

     1.   I have reviewed this Amendment No. 1 to Quarterly Report on Form
          10-Q/A of Analogic Corporation;

     2.   Based on my knowledge, this quarterly report does not contain any
          untrue statement of a material fact or omit to state a material fact
          necessary to make the statements made, in light of the circumstances
          under which such statements were made, not misleading with respect to
          the period covered by this quarterly report; and

     3.   Based on my knowledge, the financial statements, and other financial
          information included in this quarterly report, fairly present in all
          material respects the financial condition, results of operations and
          cash flows of the registrant as of, and for, the periods presented in
          this quarterly report.

                                                 /s/John W. Wood Jr.
                                  ----------------------------------------------
                                                    John W. Wood Jr.
                                        President and Chief Executive Officer
                                          (Principal Executive Officer)

Date: October 27, 2003