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720301 Electrical Instruments and Measurements

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720301 Electrical Instruments and Measurements

Ayrton Shunt At B Total resistance R1+R2+R3 Meter resistance Rm At C Total resistance R1+R2 Meter resistance Rm+R3 At D? Example 4.3: A PMMC instrument has a three-resistor Ayrton shunt connected across it to make an ammeter as shown in Figure 3-13.

http://utcc2.utcc.ac.th/engineer/learning/supachate_in/subjects/instru_meas/chapter04.ppt

Date added: March 2, 2012 - Views: 90

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CHAPTER 5

CHAPTER 5 AC Meter. School of Computer and Communication Engineering, UniMAP Prepared By: Amir Razif b. Jamil Abdullah EMT 113: V-2008 5.1 Introduction to AC Meters. 5.2 D’Arsonval Meter Movement with Half-Wave Rectification.

http://portal.unimap.edu.my:7778/portal/page/portal30/Lecturer%20Notes/KEJURUTERAAN_KOMPUTER/EKT241/EMT_113_ELECTRICAL_ENFGINEERING_TECHNOLOGY/LECTURE_NOTES/EMT113_CH5_AMIR%20RAZIF.PPT

Date added: March 17, 2014 - Views: 7

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Slide 1

Loading effects of AC Voltmeters Summary * Introduction Several types of meter movements maybe used to measure ... The d’Arsonval meter movement used in a DC voltmeter Sensitivity= 1/Ifs d’Arsonval MM with ½ Wave Rectification * PMMC meter movements will not work correctly if directly ...

http://communicationsengineering.files.wordpress.com/2010/01/ac-meters-part-1.ppt

Date added: February 24, 2012 - Views: 33

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CHAPTER 1

CHAPTER 4 DC Meter. School of Computer and Communication Engineering, UniMAP Prepared By: Amir Razif b. Jamil Abdullah EMT 113: V-2008 4.1 Introduction to Meters. 4.2 Analogue Meter 4.3 Introduction to DC Meters. 4.4 D’Arsonval Meter Movement in DC Meters. 4.5 Ayrton Shunt.

http://portal.unimap.edu.my:7778/portal/page/portal30/Lecturer%20Notes/KEJURUTERAAN_KOMPUTER/EKT241/EMT_113_ELECTRICAL_ENFGINEERING_TECHNOLOGY/LECTURE_NOTES/EMT113_CH4_AMIR%20RAZIF.PPT

Date added: September 1, 2013 - Views: 16

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Electrical And Electronics Instruments

Types of Instruments Permanent magnet moving coil (PMMC). Moving Iron Electro-dynamometer ... Type Wattmeter Power Measurement in 3 phase 3 wire system Two wattmeter method Energy meters Single Phase Energy Meter Poly Phase Energy Meter THANK YOU Analog Instruments An analog device is one in ...

http://www.worldcolleges.info/sites/default/files/enggnotes/Single_and_three_phase_wattmeter_and_energy_meters.ppt

Date added: August 24, 2014 - Views: 1

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Chapter 1

CHAPTER 2 DC AND AC METER 2.7 AMMETER INSERTION EFFECTS Inserting Ammeter in a circuit always increases the resistance of the circuit and, thus always reduces the current in the circuit.

http://myweb.utem.edu.my/myweb/azdiana/downloads/chap2_AcDcmeter.ppt

Date added: June 29, 2014 - Views: 2

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CHAPTER 1 Measurement and sensing techniques in thyristorised ...

Same as PMMC except permanent magnet is replaced by fixed coils. Same current both in fixed coil and moving coil. Torque exerted on moving coil α meter current squared. deflection α average torque α average of the current squared.

http://c501400.r0.cf2.rackcdn.com/documents/EE/PESD(CHA1)PPT.pptx

Date added: June 11, 2013 - Views: 14

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720301 Electrical Instruments and Measurements

Example 5.1: A PMMC instrument with FSD of 100 A and a coil resistance of 1k is to be converted into a voltmeter. ... Rm. Multi-range Voltmeter In Figure 3.16(a), only one of the three multiplier resistors is connected in series with the meter at any time.

http://utcc2.utcc.ac.th/engineer/learning/supachate_in/subjects/instru_meas/chapter05.ppt

Date added: March 6, 2012 - Views: 27

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720301 Electrical Instruments and Measurements

is a PMMC instrument designed to be sensitive to extremely low current levels. ... * Ayrton Shunt At B Total resistance R1+R2+R3 Meter resistance Rm At C Total resistance R1+R2 Meter resistance Rm+R3 At D? * Example 4.3: ...

http://www.chandigarhuniversity.ac.in/e-library/resource_library/University%20Institute%20of%20Engineering/EET-201-EMMI/EET-201(1)-EMMI-AMRITJOT.ppt

Date added: August 30, 2014 - Views: 1

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Chapter 02

Đo Điện áp và Dòng điện 2.1- Bộ chỉ thị 2.2 Đo dòng 2.3 Đo điện áp *

http://www4.hcmut.edu.vn/~nntan/chuong2%20-%20do%20ap&dong.ppt

Date added: May 8, 2013 - Views: 8

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Slide 1

PERTEMUAN 4 – 6 MENARA MULTIMETER dan PENGUKURAN ARUS SEARAH METER ARUS SEARAH Pendahuluan ALAT UKUR PMMC (Permanent Magnet Moving Coil ) Disebut juga gerak d’Arsonval Alat ukur PMMC terdiri dari magnet tetap dan kumparan yang bila dialiri arus akan timbul gaya untuk menggerakkan pointer ...

http://ftp.gunadarma.ac.id/handouts/D3_TK/PPT_Pengukuran%20Elektronika/pertemuan%204-6.ppt

Date added: June 2, 2013 - Views: 11

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LECTURE IV

... ----- Representasi skematik pada pengukuran thermocouple basic dengan menggunakan thermocouple CDE and a PMMC movement ... lilitan kompensasi ----- Watt-hour meter Elements of a single-phase watthour meter Power-factor meter Connections for a single ...

http://www.mdp.ac.id/materi/2011-2012-2/TK314/111061/TK314-111061-803-7.ppt

Date added: August 23, 2013 - Views: 4

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PEUKUR ANALOG

... m pmmc a,v,Ф, Ω dc r pmmc dengan penye arah a, v, f, Ω ac/dc t pmmc dengan termo kopel a, v, w dc moving iron (besi putar) s atraction revul tion a, v. a, v. ac/dc ac/dc 2. elektro dinamis moving coil d dinamo meter a, v, w, cos φ ac/dc 3. elektro magnit induksi i split ...

http://amrangambut.files.wordpress.com/2011/08/9-peukur-analog.ppt

Date added: August 17, 2013 - Views: 2

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PEUKUR ANALOG

KEMAGNETAN MOVING COIL (KUMPARAN PUTAR) M PMMC A,V,Ф, Ω DC R PMMC DENGAN PENYE ARAH A, V, F, Ω AC/DC T PMMC DENGAN TERMO KOPEL ... = 21,11896/103 Nm/rad Tc = Kg. sin 60o = 21,11896/103 x 0,5 = 10,55x10-3 N m Kopel dari suatu am.meter ber ubah2 sesuai dengan kuadrat arus yg ...

http://amrangambut.files.wordpress.com/2013/08/6-peukur-analog.ppt

Date added: September 17, 2013 - Views: 7

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เครื่องวัดไฟฟ้า ...

... (Var meter) ... กระแสสลับ ใช้หลักการของเครื่องวัดแบบ PMMC ทำงานร่วมกับวงจรเร็คติฟายร์ โดยหน้าที่ของ วงจรเร็คติ ...

http://edltv.vec.go.th/courses/32/10110041p.ppt

Date added: December 12, 2013 - Views: 5

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PowerPoint 簡報 - 清華大學物理系歡迎頁 Welcome to ...

Some meter movements have a needle that is spring-centered in the middle of the scale sweep instead of to the left, ... Such an instrument design is generally known as a permanent-magnet, moving coil, or PMMC movement: ...

http://www.phys.nthu.edu.tw/%7Egplab/file/97-2/lab19_Ammeter,%20Voltometer,%20and%20Ohmmeter.ppt

Date added: October 27, 2012 - Views: 9

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實驗19:基本電子元件和電學儀表 安培計、伏特計

... or PMMC movement ,利用此設計發展成達松發可動線圈 ... (electrostatic meter movements) 特殊高電壓伏特計用electrostatic meter movements 取自參考資料,達松發可動線(D’Arsonval movement) ...

http://www.phys.nthu.edu.tw/%7Egplab/file/97-2/e1.ppt

Date added: March 3, 2012 - Views: 19