1、 INTERNATIONAL STANDARD IEC60444-7 First edition2004-04 Measurement of quartz crystal unit parameters Part 7:Measurement of activity and frequency dips of quartz crystal units Reference number IEC 60444-7:2004(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLI
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9、equency dips of quartz crystal units IEC 2004 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechni
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11、CON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 60444-7 IEC:2004(E)INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MEASUREMENT OF QUARTZ CRYSTAL UNIT PARAMETERS Part 7:Measurement of activity and frequency dips of quartz crystal units FOREWORD 1)The I
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