installations in explosive atmospheres of gas vapour mist and dust bs 5345 part 1 1989 bs en 60079 14 1997 bs 6467 part 2 1988
mcmillan, a. (1998). electrical installations in hazardous areas
Ngày tải lên :
18/04/2014, 11:03
... for dust releases 6 .2 .1 Sources of dust release 6 .2. 2 Definition of Zones 6 .2. 3 Extents of hazardous areas 12 0 12 0 12 1 12 6 12 6 12 6 12 6 12 7 12 7 13 0 13 0 13 2 13 2 13 3 13 4 13 5 14 0 14 3 14 4 14 5 14 6 14 6 ... 21 1 21 2 21 3 21 3 21 5 21 5 21 5 21 6 21 8 21 8 21 8 21 9 21 9 21 9 22 0 22 3 22 3 10 Apparatus using protection concept flameproof enclosure 'd' 22 6 10 .1 Standards for flameproof apparatus 10 .2 Construction and ... 15 18 22 22 22 22 23 23 24 24 24 25 26 27 27 28 30 30 30 32 34 34 39 41 vi Contents Area classification practice for gases, vapours and mists in freely ventilated situations 3 .1 3 .2 3.3 3.4 Introduction...
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iec 60092-375 ship board telecommunication cables and radio-frequency cables - general instrumentation, control and communication cables
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25/12/2013, 10:44
... Screen Sheaths SECTION Two 11 12 13 14 15 16 17 18 19 20 7 9 11 11 11 11 11 REQUIREMENTS Conductor Insulating material Insulation thickness Identification ... Caractộristiques de retardement de la propagation de la flamme SECTION TROIS CARACTẫRISTIQUES ẫLECTRIQUES DU CABLE EN 22 23 24 25 12 12 12 12 16 16 16 16 18 18 ẫTAT DE LIVRAISON Rộsistance ... under license with IEC No reproduction or networking permitted without license from IHS Licensee=Technip Abu Dabhi/59 319 1 710 1 Not for Resale, 02 / 12 /20 06 07 :20 : 02 MST - 14 - 14 .1 Mộthode 1: Repốres...
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dye, n. (2000). radio frequency transistors - principles and practical applicat
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18/04/2014, 12:26
... de- 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45Short 46Reg 10 500_ 01_ 0 01- 030_R3_jb.qxd 11 /20 /00 3:07 PM Page 12 12 10 11 12 13 14 15 ... 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45Short 46Reg 10 500_ 01_ 0 01- 030_R3_jb.qxd 11 /20 /00 3:07 PM Page 22 22 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 ... 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45Short 46Reg 10 500_ 01_ 0 01- 030_R3_jb.qxd 11 /20 /00 3:07 PM Page 14 14 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 ...
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Advanced Radio Frequency Identification Design and Applications Part 1 ppt
Ngày tải lên :
19/06/2014, 23:20
... the half wavelength dipole antenna and gd is the gain of the dipole which is 1. 64 In terms of dBi, it is 2 .15 dB Hence, Equation 17 becomes GdBd = GdBi − 2 .15 dB (18 ) 2. 5 EIRP and ERP In order to ... length of the antenna as shown in Equation (13 ) (Balanis, 20 05) below Vin = Ei · le (13 ) 2. 4 Gain Gain is one of the parameters that describe an antenna’s radiating ability The absolute gain of ... definition of the concept of effective length, we introduce as shown in Fig the definitions of input current and induced voltage for a general antenna z q P aq r + le B Vin - A Iin Fig Coordinate used in...
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Advanced Radio Frequency Identification Design and Applications Part 2 potx
Ngày tải lên :
19/06/2014, 23:20
... written into Equation 52 − + + V1 = s 11 V1 + s 12 V2 (52a) − V2 (52b) = + s 21 V1 + + s 22 V2 − + Substituting the first of Equation 45 and Equation 49 into Equation 52, solving for V1 /V1 and − ... /V1 and − /V+ gives V2 − V1 s 12 s 21 s L (53) + = Γrant = s 11 − s s − V1 22 L 21 Operating Range Evaluation of RFID Systems − V2 + V1 Hence, = s 21 − s 22 s L (54) s 21 (55) − s 22 s L Equation 53 illustrates ... voltage (V) Energy for Writing RAM ∼ ∞ 12 ∼ 70 12 ∼70ns Overwrite 3.3 ∼ EEPROM 13 0(μm )2 10 5 20 0 3 10 ms Erase + Write 15 ∼ 20 10 0μJ FeRAM ∼80(μm )2 10 10 ∼ 10 12 11 0 0 .1 s Overwrite ∼ 3.3 0.00 01 J Table...
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Advanced Radio Frequency Identification Design and Applications Part 3 pptx
Ngày tải lên :
19/06/2014, 23:20
... 45 93.6 X 36 -15 . 12 35.35+j3 1. 39 6 . 12 50 91. 8X40.7 -15 .34 36. 61+ j6.4 1. 14 5.95 55 90.4X45.3 -14 .84 35. 21 + j4.5 1. 149 5.95 60 88 X 48.6 - 12 .6 32. 55+j8.5 1. 27 5.97 70 81. 2X 52. 5 -11 .8 29 .83+j3.8 0.86 ... Gain (dBi) Read Range (m) 20 1. 86 -20 60.4-j2.6 1. 25 6.08 30 1. 02 -22 .53 46.5-j0.6 1. 18 6.05 40 0.96 -19 .87 41- j0.7 1. 126 50 0.876 -14 .37 35.68+j7 0.9 92 5.83 60 0.806 - 12 .2 30.36+j0.5 0.7 32 5.6 ... 96. 82 X 16 - 12 .5 32. 9+j9.5 0.88 5. 72 K3 91. 25 X 14 -11 .56 29 .1- j1.4 0. 72 5.55 Table Effect of indentation angle on Koch fractal dipole parameters Another indentation angle search between 20 ° and...
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Advanced Radio Frequency Identification Design and Applications Part 4 pot
Ngày tải lên :
19/06/2014, 23:20
... Introduction Recently there has been a rapidly growing interest in RFID systems and its applications Operating frequencies including 12 5 KHz 13 4 KHz and 14 0 KHz 14 8.5 KHz LF band, 13 .56 MHz HF band and 868 ... NN of publications de publicações 40 35 30 25 20 15 10 20 02 2003 20 04 20 05 year Ano 20 06 20 07 20 08 20 09 Fig Number of publications specifically for RFID antennas in the IEEE, in a sample space of ... directivity, gain and radiation efficiency for the antenna in Figure 14 Design of RFID Coplanar Antenna with Stubs over Dipoles 61 For the gain calculation of the antenna in Figure 14 , one takes...
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Advanced Radio Frequency Identification Design and Applications Part 5 pptx
Ngày tải lên :
19/06/2014, 23:20
... 97.3+j44 .2 99.6+j43.4 10 2. 5+j 41. 3 Gmax (dB) 0.98 1. 12 1. 21 1.38 1. 62 dmin/max (m) 2. 5/3 2. 5/3 2. 5/3 2. 5/3 2. 5/3 τmin/max 0. 71/ 0.96 0.68/0.99 0.78/0.98 0.76/0.93 0.73/0.87 Zchip (Ω) 15 .6- j46.4 14 .3- ... system using a complementary antenna pair Proceeding of IEEE Int Symp Antennas and Propag., pp . 12 29 - 12 32, ISBN: 978 -1- 424 4-0877 -1 June 20 07, Honolulu, HI [48] Guo, L.; Chen, X & Parini, C.G (20 08) ... tracking fast moving tags Proceeding of IEEE Radio and Wireless Symposium, Vol 18 , No 22 , pp 449-4 52, ISBN: 978 -1- 424 4 -26 98-0 Jan 20 09, San Diego, CA HFSS version 11 .0, Ansoft Software Inc., 20 07...
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Advanced Radio Frequency Identification Design and Applications Part 6 potx
Ngày tải lên :
19/06/2014, 23:20
... With tap Fig 3 .17 Fabricated antenna (H = 0.0 21 , D = 0. 020 λ) 50j 25 j 10 0j 25 0j 10 j With tap w/o tap 10 -10 j 25 50 10 0 25 0 315 MHz -25 0j Simu Meas -25 j -10 0j -50j Fig 3 .18 Antenna input impedance ... -8. 5 12 0 dBi Meas 90 -5 Eθ =-5.3 dBi Eφ60 -8 .2 dBi = -10 -15 15 0 30 -20 -25 -30 18 0 -25 -20 21 0 330 -15 -10 24 0 -5 27 0 300 Fig 3 .20 Radiation patterns As can be seen from Fig 3 .20 , the measured and ... resistance, and only a small component of the input power is used for radiation 0.035 4.50 2. 21 N= 2. 32 N = 10 4.68 2. 44 N = 15 4. 81 0.030 D [m] 0. 025 0.84 0. 020 0. 015 0. 010 0.005 0. 92 1. 00 R [Ω] 0.02...
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Advanced Radio Frequency Identification Design and Applications Part 7 pdf
Ngày tải lên :
19/06/2014, 23:20
... 1. 55 1. 0 1. 1 1. 2 1. 3 1. 4 1. 5 1. 7 1. 8 1. 9 2. 0 2 .1 2. 2 3.8 3.7 3.4 3.4 3.5 3.7 2. 75 2. 85 3 .1 3 .15 3 .1 3 .25 1. 55 1. 55 1. 55 1. 53 1. 52 1. 45 Table Equivalent circuit design table for the MOCSRR particle ... impedance and gain of the OCSRR antenna at 920 MHz for various values of ε Zin (Ω) G (dB) 920 7.4-j49 1. 87 920 920 920 13 .8+j 110 28 .1+ j288 93+j677 1. 88 1. 70 1. 35 d (mm) f0 (MHz) 0 . 12 7 0.787 1. 57 3 .14 ... 1. 1 1. 3 1. 2 1. 4 1. 4 1. 7 2. 9 2. 85 3 .2 3 .15 3 .25 3.05 2. 81 2. 61 2. 56 2. 39 2. 35 2. 2 Table Equivalent circuit design table for the OCSRR particle for various scale factors S Next, the dimensions of...
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Advanced Radio Frequency Identification Design and Applications Part 9 pot
Ngày tải lên :
19/06/2014, 23:20
... Range (V) < 12 5 12 5 to < 25 0 25 0 to < 500 500 to < 10 00 10 00 to < 15 00 15 00 to < 20 00 ≥ 20 00 The Interaction of Electrostatic Discharge and RFID 15 9 Introduction to RFID Radio Frequency Identification ... antennas and higher gain of the reader antennas ( ~11 dBi over the entire band) 15 1 Accurately Read Tag (%) Fully Printable Chipless RFID Tag 10 0 80 Maximum number of bits =13 60 40 20 15 25 35 ... Voltage 10 to 20 % Relative Humidity Means of Static Generation 65 to 90% Relative Humidity 35,000 12 ,000 6,000 7,000 20 ,000 18 ,000 1, 500 25 0 10 0 600 1, 20 0 1, 500 Walking across carpet Walking on vinyl...
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Advanced Radio Frequency Identification Design and Applications Part 10 pdf
Ngày tải lên :
19/06/2014, 23:20
... Symposium on Circuits and Systems(ISCAS), pp 18 39 -18 42, May 20 07 Gilbert, H.; Robshaw, M & Seurin, Y (20 08) HB : Increasing the Security and Efficiency of HB+, Proceedings of Advances in Cryptology - ... Radio Frequency Identification Design and Applications Fig 14 Communication ranges of a tag and a reader Requirements P1 1) Authentication 2) Confidentiality 3) Anti-tracking 4) Anti-cloning 5) Anti-DoS ... Pervasive Computing, Vol 5, No 1, pp 62- 69, Jan 20 06 Tuyls, P & Batina, L (20 06) RFID-tags for Anti-counterfeiting, Proceedings of CT-RSA, LNCS 3860, pp 11 5 -13 1, Feb 20 06 Tsudik, G (20 06) YA-TRAP:...
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Advanced Radio Frequency Identification Design and Applications Part 11 docx
Ngày tải lên :
19/06/2014, 23:20
... (15 ,15 ,15 ) (16 ,16 ,16 ) (17 ,17 ,17 ) (18 ,18 ,18 ) (19 ,19 ,19 ) (20 ,20 ,20 ) ( 21 , 21 , 21 ) (22 ,22 ,22 ) (23 ,23 ,23 ) (24 ,24 ,24 ) (25 ,25 ,25 ) Position estimation error(cm) 6.4 71 7.053 7.389 7.497 7.367 6.953 6.8 72 ... 7.367 6.953 6.8 72 7.049 6. 922 6.584 6.080 fail rate 0.66 61 0.47 81 0. 310 4 0 .14 07 0.0754 0. 020 9 0.0093 0.0 025 0.0007 3.9E-005 2. 7E-005 (16 ,19 ,25 ) (15 ,20 ,25 ) (15 ,19 ,25 ) (15 ,18 ,25 ) 5.590 5.634 5.650 5.674 ... r = 1, 12 in Fig 13 (b), the mapping points are out of their corresponding partitions It leads to increase of the error variance If the mapping points are on the center of mass of the each partitions,...
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Advanced Radio Frequency Identification Design and Applications Part 12 ppt
Ngày tải lên :
19/06/2014, 23:20
... 21 0 Advanced Radio Frequency Identification Design and Applications 2 = l2 − r2 (t1 + t )t1 (4) where a = υt1 and b = υt are used Once υ is known using (4), applying the law of cosines ... (25 0 ,25 0) and (25 0,30), and returning to (30,30) Fig 11 The experimental pseudorandom tag arrangement and the closed path trajectory Fig 12 The mobile robot velocity estimates: a) the forwarding ... set of discrete angles of rotation, given by Φ K = ( K − 1) 1 π = ( K − 1) , 29 18 K = 1, ,9 (10 ) where K = corresponds to the square pattern shown in Fig 5a) Fig shows the set of nine different...
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Advanced Radio Frequency Identification Design and Applications Part 13 docx
Ngày tải lên :
19/06/2014, 23:20
... (Oct 20 08), pp 13 -24 , ISSN 10 45- 924 3 Skilling, H (19 57) Electrical Engineering Circuits, Second Edition, John Wiley and Sons, Inc., New York 13 Reordering of Location Identifiers for Indexing ... surface into which tags were embedded A photo of one of the tagged cylinders is shown in Figure 15 The tag had 5.65 mm (0 .22 inch) of material between it and the surrogate munition including 2. 85 ... Example frequency-domain plots are shown in 24 2 Advanced Radio Frequency Identification Design and Applications Figure 16 The left and right vertical yellow cursors are positioned at 12 0 and 13 0 kHz,...
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Advanced Radio Frequency Identification Design and Applications Part 14 ppt
Ngày tải lên :
19/06/2014, 23:20
... procedure of CM in the next subsection q= 32 14 000 12 000 10 000 8000 6000 4000 20 00 q=64 q = 12 8 q =25 6 q= 5 12 q =10 24 q =20 48 0 . 12 5q 0 .25 q 0.5q q 2q 4q q=4096 Number of nodes in the h-th layer of T' Fig ... protocol 14 00 12 00 10 00 800 600 400 20 0 q= 32 q=64 q = 12 8 q =25 6 q= 5 12 q =10 24 0 . 12 5q 0 .25 q 0.5q q 2q Number of nodes in the h-th layer of T' 4q q =20 48 q=4096 Fig Collided nodes in the hth layer of T’ ... classified into aloha-based solutions [3, 10 , 12 -13 , 16 , 21 , 23 -24 ] and tree-based solutions [1, 2, 4, 6-9, 14 -15 , 17 -20 , 22 ] In aloha-based schemes, a reader estimates the number of tags in its interrogation...
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Advanced Radio Frequency Identification Design and Applications Part 15 pdf
Ngày tải lên :
19/06/2014, 23:20
... advantages in data processing speed 2 .1 Main hardware module 2 .1. 1 DSP and FPGA Interface Connection between the DSP and FPGA includes the 32 bit data line evm_D[ 31: 0], 20 bit address line evm_A [22 :3], ... between the FPGA and DSP Label Label 32bits 32 bits 32 bits 32 bits 32 bits 32 bits From DSP FIFO RD_CLK WR _EN Label N Channel Two 2* 32bit 32bit *2* N WR_CLK Channel One 2* 32bit Channel N 2* 32bit ... synchronization and robust transmission under wireless environment Given Tari = 12 .5us , length of is 1Tari and length of is 2Tari Detect CLOCK could be selected as follows, f = × 10 00 × KHz = 16 0KHz 12 .5...
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Radio Frequency Identification Fundamentals and Applications, Bringing Research to Practice Part 1 potx
Ngày tải lên :
21/06/2014, 11:20
... < 0 .11 9 0 .13 5 ≤ f < 0 .14 0 42 0 .14 0 ≤ f < 0 .14 85 37.7 0 .14 85 ≤ f < 30 -5 0. 315 ≤ f < 0.600 -5 3 .15 5 ≤ f < 3.400 13 ,5 7.400 ≤ f < 8.800 9 10 .20 ≤ f < 11 .00 10 6.765 ≤ f < 6.795 13 .553 ≤ f < 13 .567 ... activity in industry, commerce, science, medicine and others (Harrison, 20 09, Donaljdson, 20 09; Steden, 20 05; Wyld, 20 09 and 20 05; Åhlström, 20 05) When determining the interrogation zone for the given ... Jia-Ning Luo and Ming Hour Yang 14 RFID System Integration and Application Examples 19 7 Ming-Shen Jian 15 RFID System Integration 21 1 Hamid Jabbar and Taikyeong Ted Jeong 16 RFID Data Management 22 9...
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Radio Frequency Identification Fundamentals and Applications, Bringing Research to Practice Part 2 potx
Ngày tải lên :
21/06/2014, 11:20
... 0.00 42 0.0046 0.0049 0.0053 0.0056 0.0060 0.0063 0.0067 0.0070 0.0074 0.0077 0.00 81 0.0084 0.0088 0.00 91 0.0095 0.0098 0. 010 2 0. 010 5 0. 010 9 0. 011 2 0. 011 6 0. 011 9 0. 0 12 3 0. 0 12 6 0. 013 0 0. 013 3 0. 013 7 ... Vales-Alonso1, M.V Bueno-Delgado1, E Egea-López1, J.J Alcaraz-Espín1 and F.J González-Castaño2 1Department of Communications and Information Technologies Technical University of Cartagena, 2Department of ... Bz_min =20 µT Bz, IR=0 .1 A, N R =25 Magnetic field strength Hz, dBµA/m z’ Bz, IR=0 .1 A, NR=75 06 87 P(x,y,z) Bz, IR=0 .1 A, N R =10 0 0.0004 0.0007 0.0 011 0.0 014 0.0 018 0.00 21 0.0 025 0.0 028 0.0032...
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Radio Frequency Identification Fundamentals and Applications, Bringing Research to Practice Part 3 pdf
Ngày tải lên :
21/06/2014, 11:20
... 17 9 25 6 17 9 ≤ N < 364 5 12 364 ≤ N < 710 10 24 710 ≤ N < 14 30 20 48 14 30 ≤ N < 29 20 4096 29 20 ≤ N < 55 31 13 819 2 14 16 384 15 327 68 55 31 ≤ N < 11 527 11 527 ≤ N < 23 9 62 239 62 ≤ N Table Throughput Maximization ... 5955 ≤ N < 12 124 12 124 ≤ N < 819 2 2 522 5 25 225 ≤ N < 16 384 574 32 327 68 574 32 ≤ N 41 Characterization of the Identification Process in RFID Systems conventions are used: a row vector is denoted as ... in coverage Number of slots (K)= 2Q (N) N ≤ 4 ≤ N
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