BS EN 62047-19-2013 Semiconductor devices Micro-electromechanical devices Electronic compasses《半导体器件 微型机电装置 电子罗盘》.pdf

1、BSI Standards PublicationSemiconductor devices Micro-electromechanical devicesPart 19: Electronic compassesBS EN 62047-19:2013Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without lice

2、nse from IHS-,-,-National forewordThis British Standard is the UK implementation of EN 62047-19:2013. It isidentical to IEC 62047-19:2013.The UK participation in its preparation was entrusted to TechnicalCommittee EPL/47, Semiconductors.A list of organizations represented on this committee can be ob

3、tained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 75937 6ICS 31.080.99Compliance wit

4、h a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62047-19:2013Copyright Euro

5、pean Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD EN 62047-19 NORME EUROPENNE EUROPISCHE NORM September 2013 CENELEC European Committee for Electrotechnica

6、l Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No

7、. EN 62047-19:2013 E ICS 31.080.99 English version Semiconductor devices - Micro-electromechanical devices - Part 19: Electronic compasses (IEC 62047-19:2013) Dispositifs semiconducteurs Dispositifs microlectromcaniques - Partie 19: Compas lectroniques (CEI 62047-19:2013) Halbleiterbauelemente - Bau

8、elemente der Mikrosystemtechnik - Teil 19: Elektronische Kompasse (IEC 62047-19:2013) This European Standard was approved by CENELEC on 2013-08-21. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the statu

9、s of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French,

10、 German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Be

11、lgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Swed

12、en, Switzerland, Turkey and the United Kingdom. BS EN 62047-19:2013Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 62047-19:2013 - 2 - Foreword The text o

13、f document 47F/156/FDIS, future edition 1 of IEC 62047-19, prepared by SC 47F “Microelectromechanical systems” of IEC/TC 47 “Semiconductor devices“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62047-19:2013. The following dates are fixed: latest date by which the docu

14、ment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-05-21 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2016-08-21 Attention is drawn to the possibility that some of the elem

15、ents of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62047-19:2013 was approved by CENELEC as a European Standard without any modificati

16、on. In the official version, for Bibliography, the following note has to be added for the standard indicated: EN ISO 11606 NOTE Harmonized as ISO 11606 (not modified). BS EN 62047-19:2013Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot f

17、or ResaleNo reproduction or networking permitted without license from IHS-,-,- 2 62047-19 IEC:2013 CONTENTS 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Essential ratings and characteristics . 7 4.1 Composition of e-compasses . 7 4.1.1 General . 7 4.1.2 Magnetic sensor sectio

18、n 8 4.1.3 Acceleration sensor section . 8 4.1.4 Signal processing section 8 4.1.5 Peripheral hardware section 8 4.1.6 Peripheral software section . 8 4.1.7 DUT . 9 4.2 Ratings (Limiting values) . 9 4.3 Recommended operating conditions 9 4.4 Electric characteristics 9 4.4.1 General . 9 4.4.2 Characte

19、ristics of sensor sections . 9 4.4.3 DC characteristics . 10 5 Measuring methods 11 5.1 Sensitivity of the magnetic sensor section . 11 5.1.1 Purpose . 11 5.1.2 Circuit diagram 11 5.1.3 Principle of measurement 11 5.1.4 Precaution to be observed . 12 5.1.5 Measurement procedure 12 5.1.6 Specified co

20、nditions 12 5.2 Linearity of the magnetic sensor section 13 5.2.1 Purpose . 13 5.2.2 Measuring circuit . 13 5.2.3 Principle of measurement 13 5.2.4 Precaution to be observed . 13 5.2.5 Measurement procedure 14 5.2.6 Specified conditions 14 5.3 Output of the magnetic sensor section in a zero magnetic

21、 field environment 14 5.3.1 Purpose . 14 5.3.2 Measuring circuit . 14 5.3.3 Principle of measurement 16 5.3.4 Precaution to be observed . 16 5.3.5 Measurement procedure 16 5.3.6 Specified conditions 16 5.4 Cross axis sensitivity of the magnetic sensor section 16 5.4.1 Purpose . 16 5.4.2 Measuring ci

22、rcuit . 16 5.4.3 Measuring method 1 17 5.4.4 Measuring method 2 18 5.4.5 Specified conditions 19 BS EN 62047-19:2013Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from I

23、HS-,-,-62047-19 IEC:2013 3 5.5 Sensitivity and offset of the acceleration sensor section 19 5.5.1 Purpose . 19 5.5.2 Measuring circuit . 20 5.5.3 Principle of measurement 20 5.5.4 Precaution of measurement . 21 5.5.5 Measurement procedure 21 5.5.6 Specified conditions 21 5.6 Frequency bandwidth of t

24、he magnetic sensor section (analogue output) 21 5.6.1 Purpose . 21 5.6.2 Measuring circuit . 21 5.6.3 Principle of measurement 22 5.6.4 Measurement procedure 23 5.6.5 Specified conditions 23 5.7 Current consumption . 23 5.7.1 Purpose . 23 5.7.2 Measuring circuit . 23 5.7.3 Principle of measurement 2

25、4 5.7.4 Precaution for measurement 24 5.7.5 Measurement procedure 24 5.7.6 Specified conditions 24 Annex A (informative) Considerations on essential ratings and characteristics . 25 Annex B (informative) Terminal coordinate system of e-compasses . 26 Annex C (informative) Descriptions of the pitch a

26、ngle, roll angle, and yaw angle with drawings . 28 Bibliography 30 Figure 1 Composition of e-compasses . 8 Figure 2 Circuit to measure sensitivity . 11 Figure 3 Measuring method of linearity 13 Figure 5 Measuring circuit using a magnetic shield room or a magnetic shield box 15 Figure 6 Direction of

27、DUT 20 Figure 7 Block diagram of frequency measurement 22 Figure 8 Current consumption measuring circuit 24 Figure B.1 Mobile terminal coordinate system of magnetic sensors 26 Figure B.2 Terminal coordinate system of acceleration sensors . 27 Figure C.1 Descriptions of the pitch angle, roll angle, a

28、nd yaw angle with drawings 29 Table 1 Characteristics of sensor sections . 10 Table 2 DC characteristics of e-compasses 10 BS EN 62047-19:2013Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permit

29、ted without license from IHS-,-,- 6 62047-19 IEC:2013 SEMICONDUCTOR DEVICES MICRO-ELECTROMECHANICAL DEVICES Part 19: Electronic compasses 1 Scope This part of IEC 62047 defines terms, definitions, essential ratings and characteristics, and measuring methods of electronic compasses. This standard app

30、lies to electronic compasses composed of magnetic sensors and acceleration sensors, or magnetic sensors alone. This standard applies to electronic compasses for mobile electronic equipment. For marine electronic compasses, see ISO 11606. Electronic compasses are called “e-compasses” for short. Types

31、 of e-compasses are: 2-axis e-compasses, 3-axis e-compasses, 6-axis e-compasses, etc., all of which are covered by this standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated refe

32、rences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. None 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 3-axis Helmholtz coil three Helmholtz coils

33、 that generate magnetic fields at right angles to each other 3.2 zero magnetic field environment magnetic field environments where magnetic field strength in a space including a device under test is lower than the strength specified Note 1 to entry: The device under test (DUT) is defined in 4.1.7. 3

34、.3 e-compass electronic compass compass that calculates and outputs an azimuth using the electrical output of sensors Note 1 to entry: The term “e-compass” is used as an abbreviated term of electronic compass. (See the above Scope.) 3.4 2-axis e-compass e-compass that uses a 2-axis magnetic sensor a

35、s a geomagnetism detection element BS EN 62047-19:2013Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-62047-19 IEC:2013 7 3.5 3-axis e-compass e-compass that

36、 uses a 3-axis magnetic sensor as a geomagnetism detection element 3.6 6-axis e-compass e-compass that uses a 3-axis magnetic sensor as a geomagnetism detection element, and a 3-axis acceleration sensor as an gravity detection element 3.7 magnetic north direction of the horizontal component of an en

37、vironment magnetic vector at a location, which is the same direction a compass points to Note 1 to entry: Geomagnetism is sometimes warped by artificial structures (buildings, vehicles, etc.), or is sometimes affected by their magnetization especially in urban areas. Strictly, therefore, the geomagn

38、etic vector should be called a kind of environmental magnetic vector. Although the environmental magnetic vector does not point to the magnetic north pole exactly, here “magnetic north” is defined as the horizontal component of an environmental magnetic vector. 3.8 true north direction of the horizo

39、ntal component of a vector pointing to the North Pole of the Earth (north end of rotational axis) at a location, which is the same as the north to which longitude lines or a meridian point 3.9 azimuth angle rotational angle around z-axis of a terminal coordinate system, which is defined as zero degr

40、ee when the xy-plane of a terminal coordinate system is horizontal and the yz-plane includes the North Pole, where a clockwise turn is defined as positive when the z-axis is viewed from the positive direction to the negative direction Note 1 to entry: Azimuth angle is the same as the yaw angle, see

41、Annex C. Note 2 to entry: For coordinate systems of e-compasses, see Annex B. Note 3 to entry: For an explanation with diagrams, see Annex C. Note 4 to entry: Definitions for cases in which the xy-plane of a terminal coordinate system are not horizontal are under consideration. 4 Essential ratings a

42、nd characteristics 4.1 Composition of e-compasses 4.1.1 General As shown in Figure 1, an e-compass is composed of the following sections: Magnetic sensor section; Acceleration sensor section; Signal processing section; Peripheral hardware sections; Peripheral software sections. In some cases, an e-c

43、ompass does not contain the acceleration sensor section and/or the peripheral hardware section. BS EN 62047-19:2013Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IH

44、S-,-,- 8 62047-19 IEC:2013 Key 1 Magnetic sensor section 4 Peripheral hardware section 2 Acceleration sensor section 5 Peripheral software section 3 Signal processing section 6 DUT Figure 1 Composition of e-compasses 4.1.2 Magnetic sensor section A magnetic sensor section is a magnetic sensor to mea

45、sure magnetic fields of an Earths magnetism level, which measures two or more axes of magnetic fields that are at right angles to each other for calculating azimuth angles using its output. In the case of a 3-axis magnetic sensor, for example, the sensor section is composed of an x-axis sensor, a y-

46、axis sensor, and a z-axis sensor, and the sensitivity axis of the x-axis sensor is set to the x-axis. 4.1.3 Acceleration sensor section An acceleration sensor section is an acceleration sensor to measure gravity. Vertical direction (horizontal plane) is known from its output, and then an azimuth ang

47、le is calculated based on the information with correction considering the attitude of the magnetic sensor section (tilt angle). In the case of a 3-axis acceleration sensor, for example, the sensor section is composed of an x-axis sensor, a y-axis sensor, and a z-axis sensor, and the sensitivity axis

48、 of the x-axis sensor is set to the x-axis. 4.1.4 Signal processing section A signal processing section is a circuit section to drive the sensor section and to amplify its signal. In some cases, this section includes an analog-digital converter. 4.1.5 Peripheral hardware section A peripheral hardware section includes sections of a digital interface, data storage for information to control registers and devices, and an information processing. 4.1.6 Peripheral software section A peripheral software section includes not only a device driver section to acquire dat