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JJG 1049-2009 English PDF

US$309.00 · In stock
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JJG 1049-2009: Verification Regulation of Alternating Tesla-Meter for Weak Magnetic Field
Status: Valid

JJG 1049: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJG 1049-2009	English	309	Add to Cart	3 days [Need to translate]	Verification Regulation of Alternating Tesla-Meter for Weak Magnetic Field	Valid	JJG 1049-2009
JJG 1049-1995	English	RFQ	ASK	3 days [Need to translate]	Calibration Specification of Temperature SensorDynamic Response	Obsolete	JJG 1049-1995

PDF similar to JJG 1049-2009

Standard similar to JJG 1049-2009

JJF 1234 JJG 376 JJF 1107 JJF 2000 JJG 1054 JJG 1052

Basic data

Standard ID	JJG 1049-2009 (JJG1049-2009)
Description (Translated English)	Verification Regulation of Alternating Tesla-Meter for Weak Magnetic Field
Sector / Industry	Metrology & Measurement Industry Standard
Classification of Chinese Standard	A55
Classification of International Standard	17.220
Word Count Estimation	13,118
Date of Issue	2009-07-10
Date of Implementation	2009-10-10
Quoted Standard	JJF 1013-1989
Regulation (derived from)	AQSIQ Announcement No. 78 of 2009
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine
Summary	This standard applies to the electromagnetic induction magnetometer, alternating Hall magnetometer magnetic field range 1PT ~ 1MT, Frequency Range 10HZ ~ 10KHZ weak alternating magnetic field strength meter for initial verification, testing and use of follow-up inspection.

JJG 1049-2009: Verification Regulation of Alternating Tesla-Meter for Weak Magnetic Field

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Verification Regulation of Alternating Tesla-Meter for Weak Magnetic Field State verification procedures People's Republic of China Weak alternating magnetic field intensity meter Posted 2009-07-10 2009-10-10 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Weak alternating magnetic field intensity meter verification procedures neticField The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on July 10, 2009, and from From October 10, 2009 into effect. Focal point. the National Technical Committee on Electromagnetic measurement Drafted by. China Shipbuilding Industry Corporation, Institute of the seventh ○ This procedure commissioned by the National Technical Committee is responsible for interpreting electromagnetic metering The main drafters of this procedure. Chenghua Fu (China Shipbuilding Industry Corporation of the seventh ○ Institute) Drafters participate. Han Xiaodong (China Shipbuilding Industry Corporation of the seventh ○ Institute) Yang Yun (China Shipbuilding Industry Corporation of the seventh ○ Institute)

1 Scope (1) 2. Referenced Documents (1) 3 terminology and units of measurement (1) 4 Overview (1) 4.1 Electromagnetic induction magnetometer (1) 4.2 Hall magnetometer (1) 5 metering performance requirements (2) 5.1 Indication error (2) 5.2 Stability (2) 6 General Requirements (2) 6.1 Appearance and Accessories (2) 6.2 function tests (2) 7 control of measuring instruments (2) 7.1 verification Conditions (2) 7.2 Verification Project (4) 7.3 Verification Methods (4) 7.4 Verification Results Processing (6) 7.5 test cycle (6) Appendix A test certificate page format (7) Appendix B test results of notice-page format (8) Weak alternating magnetic field intensity meter verification procedures

1 Scope

The order applies to the electromagnetic induction magnetometer, alternating Hall magnetometer magnetic field range 1pT ~ 1mT, frequency range 10Hz ~ 10kHz weak alternating magnetic field intensity meter (hereinafter referred to as alternating magnetometer) initial verification, verification and follow-up In-service inspection.

2 Citations

JJF1013-1989 stoichiometric magnetic common terminology and definitions When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 terminology and units of measurement

Terminology and units of measurement 3.1 JJF1013 established applicable to this procedure. 3.2 Alternating magnetometer alternatingtesla-meter For measuring alternating magnetic field magnetic induction value of the instrument in general.

4 Overview

Alternating magnetometer for measuring an alternating magnetic field magnetic induction value. Depending on the working principle of the alternating magnetic VSM main electromagnetic induction magnetometer and alternating Hall magnetometer. 4.1 Electromagnetic induction magnetometer When the magnetic flux passing through the conductor loop changes induced electromotive force is generated in the loop, a phenomenon known as electrical Magnetic induction effect. According to the law of electromagnetic induction, when the coil is placed in a sinusoidal alternating magnetic field, having the formula (1) according to the relationship. B = ESW 2πfScosθ (1) Where. B --- alternating magnetic field magnetic induction, T; ESW --- induced electromotive force generated in the coil, V; f --- frequency of the alternating magnetic field, Hz; S --- coil turns area, m2; And the angle θ --- alternating magnetic field coil magnetic axis, (°). Magnetometer principle of electromagnetic induction made a count called electromagnetic induction magnetometer. 4.2 Hall magnetometer When an external magnetic field is applied perpendicular to the current semiconductor film, a semiconductor film in perpendicular to the magnetic field and current party To generate an electromotive force, a phenomenon known as the Hall effect. According to Hall effect, when the Hall element is placed in an alternating magnetic field, having the formula (2) the relationship.

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