-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 DIYziXw80Bx3Q8kMNSrFcTlygTQyRGc1p1l34Ca0e19OW5HgM3vxvU+BKx9UYGr3
 lUcfRechDqYd9slbZhyfCQ==

<SEC-DOCUMENT>0000006284-05-000113.txt : 20050830
<SEC-HEADER>0000006284-05-000113.hdr.sgml : 20050830
<ACCEPTANCE-DATETIME>20050830152152
ACCESSION NUMBER:		0000006284-05-000113
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040128
FILED AS OF DATE:		20050830
DATE AS OF CHANGE:		20050830

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TARELLO JOHN A
		CENTRAL INDEX KEY:			0001242164

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-06715
		FILM NUMBER:		051058659

	MAIL ADDRESS:	
		STREET 1:		8 CENTENNIAL DRIVE
		STREET 2:		C/O ANALOGIC
		CITY:			PEABODY
		STATE:			MA
		ZIP:			01960

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ANALOGIC CORP
		CENTRAL INDEX KEY:			0000006284
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				042454372
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0731

	BUSINESS ADDRESS:	
		STREET 1:		8 CENTENNIAL DR
		CITY:			PEABODY
		STATE:			MA
		ZIP:			01960
		BUSINESS PHONE:		9789773000

	MAIL ADDRESS:	
		STREET 1:		8 CENTENNIAL DR
		CITY:			PEABODY
		STATE:			MA
		ZIP:			01960
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2004-01-28</periodOfReport>

    <dateOfOriginalSubmission>2004-01-20</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001242164</rptOwnerCik>
            <rptOwnerName>TARELLO JOHN A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8 CENTENNIAL DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>C/O ANALOGIC</rptOwnerStreet2>
            <rptOwnerCity>PEABODY</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01960</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>42.88</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-01-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>42.88</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-01-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Analogic Corproation</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The options will become exercisable in three equal annual installments commencing one year from the date of the grant.</footnote>
    </footnotes>

    <remarks>This amendment is filed to correct: the earliest transaction date (Item 3 on the face sheet), which was originally reported as 01/20/04; the exercise price (Item 2 on Table II), which was originally reported as $42.96; the transaction date (Item 3 on Table II), which was originally reported as 01/16/04; and the expiration date (Item 6 on Table II), which was originally reported as 01/16/14.</remarks>

    <ownerSignature>
        <signatureName>Bruce Garr, by Power of Atty. for John A. Tarello</signatureName>
        <signatureDate>2005-08-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----