<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2003-08-14</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000006284</issuerCik>
        <issuerName>ANALOGIC CORP</issuerName>
        <issuerTradingSymbol>ALOG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001237302</rptOwnerCik>
            <rptOwnerName>GORDON BERNARD M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity></rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>

        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2003-08-14</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>49.028</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2351392</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by Trust 12/19/86</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>

        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
                <footnoteId id="F3"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15623</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by Trust 11/18/82</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>

    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">ALL SHARES INVOLVED IN THE TRANSACTION REPORTED ON THIS FORM WERE SOLD BY THE BERNARD GORDON  CHARITABLE REMAINDER UNITRUST (THE &quot;UNITRUST&quot;) OF WHICH MR. GORDON IS A CO-TRUSTEE.  THE UNITRUST HAS FILED TODAY A SEPARATE FORM 4 COVERING THE SAME TRANSACTION AND SHARES REPORTED ON THIS FORM.  MR. GORDON IS REQUIRED TO MAKE THIS FILING UNDER APPLICABLE SEC REGULATIONS.</footnote>
        <footnote id="F2">CO-TRUSTEE &amp; BENEFICIARY OF THE BERNARD GORDON CHARITABLE REMAINDER UNITRUST DATED DECEMBER 19, 1986</footnote>
        <footnote id="F3">ALL SHARES INVOLVED IN THIS TRANSACTION WERE GIFTED BY THE BERNARD GORDON  CHARITABLE REMAINDER UNITRUST (THE &quot;UNITRUST&quot;) AND BY THE GORDON FOUNDATION, EACH OF WHICH MR. GORDON IS A CO-TRUSTEE.  MR. GORDON IS REQUIRED TO MAKE THIS FILING UNDER APPLICABLE SEC REGULATIONS</footnote>
        <footnote id="F4">As Co-trustee of the Gordon Foundation under Indenture of Trust dated 11/18/82</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Julian Soshnick, by Power of Attorney  For: Bernard M. Gordon</signatureName>
        <signatureDate>2003-08-14</signatureDate>
    </ownerSignature>

</ownershipDocument>

