BS-9220-N001-1971.pdf

《BS-9220-N001-1971.pdf》由会员分享，可在线阅读，更多相关《BS-9220-N001-1971.pdf（14页珍藏版）》请在三一文库上搜索。

1、BRITISH STANDARD BS 9220 N001:1971 Detail specification for ordinary rectangular (2 : 1) rigid waveguide tubing Standard wall thickness General application category UDC 621.372.822 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:33:34 GMT+00:00 2006, Uncontro

2、lled Copy, (c) BSI BS 9220 N001:1971 BSI 04-2000 ISBN 0 580 06278 3 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immuni

3、ty from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 8 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the

4、inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:33:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N001:1971 BSI 04-2000i Contents Page 1Ratings (including limiting conditions

5、of use) and characteristics1 2Marking2 3Related documents2 4Ordering information2 5Certified test records2 6Test schedule3 Table 1A Dimensions for ordinary rectangular waveguide type R5 Table 1B Dimensions for ordinary rectangular waveguide type R6 Table 2 Surface roughness in micrometres and micro-

6、inches7 Table 3 Weight data for ordinary rectangular waveguide type R8 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:33:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec

7、 08 04:33:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N001:1971 BSI 04-20001 1 Ratings (including limiting conditions of use) and characteristics 1.1 Nominal internal width and operating frequency range. Alternate sizes in the tables have been chosen from two staggered series, each coverin

8、g the frequency range in steps with a frequency ratio of approximately 1.5. The nominal frequency range is approximately from 1.25Rc to 1.9Rc (Rc = cut-off frequency of dominant mode). For any particular type of application the effective frequency range may be smaller or greater than the nominal fre

9、quency range. The actual frequency range required in a specific case may not fall into the effective working frequency range of a waveguide size in one series. The other series will then generally be found suitable. In the table the two series are combined. 1.2 Theoretical power rating. The values q

10、uoted are the theoretical breakdown values at a frequency 1.5 times the cut-off frequency (assuming breakdown in air at N.T.P. to occur at 30 000 V/cm). The figures quoted include a power safety factor of two as well as allowance for a voltage standing wave ratio of 0.5 (33 % voltage reflection coef

11、ficient). For other frequencies the values quoted should be multiplied by: 1.3 Ratio between inside width and height. The standard ratio of inside width to inside height is in principle 2 : 1. For some types of waveguides given in this specification this ratio has not been observed because a differe

12、nt value of the ratio was already in extensive use. 1.4 Deviation on inside width and height. Deviations for the inside width and heights are in principle 1/750 of the internal width. For the smallest sizes the normal deviation is 0.020 mm ( 0.0008 in), which represents a departure from the principl

13、e mentioned above. 1.5 Theoretical attenuation. The values given in the tables are based on a figure for the resistivity of copper 1.7241 10 8 7 m and apply to a frequency equal to 1.5Rc. For the general case attenuation is given by the following formula: ELECTRONIC PARTS OF ASSESSED QUALITY: DETAIL

14、 SPECIFICATION OUTLINE DRAWING RIGID WAVEGUIDE TUBING ORDINARY RECTANGULAR (2 : 1) STANDARD WALL THICKNESS GENERAL APPLICATION CATEGORY Type R70Type R320 Examples of cross section For dimensions see tables R5 TO R1200 MATERIALS: CLASSES 1 TO 4 where = resistivity of inside non-magnetic wall metal, o

15、= resistivity of copper = 1.7241 10 8 7 m, a= inside width in millimetres, b= inside height in millimetres, Rc= cut-off frequency for Ho1 (TEo1) mode = GHz, R= frequency at which the attenuation is to be calculated. 149.9 a - - Licensed Copy: London South Bank University, London South Bank Universit

16、y, Fri Dec 08 04:33:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N001:1971 2 BSI 04-2000 For other materials multiply the values quoted by the factor given in the following table: 2 Marking The marking shall be in accordance with 1.1.6 of BS 9220 except that for sizes smaller than R500 each

17、 length of waveguide shall be marked by durable labels attached to the waveguide. 3 Related documents BS 9220, Rigid waveguide tubing of assessed quality: Generic data and methods of test. BS 2871, Schedule of copper and copper alloys. Tubes. BS 1471, Wrought aluminium and aluminium alloys for gener

18、al engineering purposes. Drawn tube. BS 3839, Oxygen-free high conductivity copper for electronic valves and semiconductor devices. 4 Ordering information Orders for waveguides conforming to the requirements of this specification shall contain the following information in accordance with the require

19、ments of 1.1.15 of BS 9220: 1) BS number of this detail specification. 2) Reference code (see 1.1.6.2 of BS 9220:1971). 3) Piece length. 5 Certified test records The CTR, as issued at 6-monthly intervals, will contain attributes information for all subgroup A2 tests. In addition, the CTR will contai

20、n measurements information for all Group D tests. Material Code Letter Resistivity 7 m ( 10 8) Factor Aluminium to BS 1471 T1C Aluminium alloy to BS 1471 NT4 Aluminium alloy to BS 1471 NT6 Aluminium alloy to BS 1471 HT9 Aluminium alloy to BS 1471 HT15 Aluminium alloy to BS 1471 HT20 Aluminium alloy

21、to BS 1471 HT30 A B C D E F G 2.8 3.0 4.6 4.9 6.4 6.5 3.3 3.5 4.8 5.0 4.0 4.3 3.4 3.8 1.275 1.320 1.635 1.685 1.930 1.945 1.380 1.425 1.670 1.705 1.525 1.580 1.405 1.490 Brass to BS 2871 CZ101 Brass to BS 2871 CZ105 Copper to BS 2871 C101 or C102 Copper to BS 2871 C103 Copper to BS 2871 C106 Copper

22、to BS 3839 Silver (92.5 % silver 7.5 % copper) H J K L M N S (Annealed) 3.90 6.2 1.724 1.737 1.724 2.436 1.724 1.80 (Drawn) 4.3 7.8 1.777 1.777 1.777 2.538 1.777 (Annealed) 1.505 1.895 1.000 1.002 1.000 1.190 1.000 1.020 (Drawn) 1.580 2.130 1.015 1.015 1.015 1.213 1.015 Licensed Copy: London South B

23、ank University, London South Bank University, Fri Dec 08 04:33:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N001:1971 BSI 04-20003 6 Test schedule The sample size for the Group D inspection of each class of material shall be one tube, selected at random for each of the approval ranges of si

24、zes listed below: Ranges of sizes Classes of materials Range 1. R5 to R26. Length to be 2 m (6 ft 6 in) Range 2. R32 to R70. Length to be 2 m (6 ft 6 in) Range 3. R84 to R140. Length to be 1 m (3 ft 3 in) Range 4. R180 to R500. Length to be 1 m (3 ft 3 in) Range 5. R620 to R1200. Length to be 1 m (3

25、 ft 3 in) Class 1.Aluminium or aluminium alloys containing not less than 95 % aluminium Class 2.Copper zinc alloys containing between 1 % and 35 % zinc Class 3.Copper with not more than 1 % of other materials Class 4.Silver or silver copper alloys containing more than 87 % silver Inspection requirem

26、ents Inspection BS 9220:1971 reference and conditions of test Requirements GROUP A(To be applied on a sampling basis lot by lot) Subgroups A1, A3 and A4 are not applicable Non-destructive tests Subgroup A0100 % inspection Visual inspection Dimensions Eccentricity Material verification 1.2.2 1.2.3.1

27、1.2.3.2 1.2.5.2 (Excluding corner radii) at each end of waveguide length At each end As in 1.2.2 of BS 9220 As in Table 1 As in Table 1 Confirm that correct material from those listed under clause 1 to 4 in 1.1.6.2 4) of BS 9220 has been used Subgroup A2Inspection level S-2, AQL 2.5 % Dimensions Bow

28、 Twist Shape of cross section Internal finish 1.2.3.1 1.2.3.3 1.2.3.4 1.2.3.5 1.2.5.1 Corner radii only at each end Any 600 mm (2 ft) of stock length Any 300 mm (1 ft) run of stock length Accumulated twist per stock length May be assessed by measurement of manufacturers tool As in Table 1 Edgewise b

29、ow: 0.25 mm (0.01 in) Flatwise bow: 0.5 mm (0.02 in) May not exceed 0.5 May not exceed 3 As in 1.2.3.5 of BS 9220 As in Table 2 Subgroup A5 CTR informationAttributes information for subgroup A2 GROUPS B and CNo tests required Licensed Copy: London South Bank University, London South Bank University,

30、 Fri Dec 08 04:33:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N001:1971 4 BSI 04-2000 Inspection requirements Inspection BS 9220:1971 reference and conditions of test Requirements GROUP D(To be applied on a sampling basis at three-yearly intervals) Subgroups D2, D3, D4 and D5 are not appli

31、cable Subgroup D1 tests Visual inspectiona Bowa Twista Dimensions Eccentricity Shape of cross section Internal finisha Material verificationa 1.2.2 1.2.3.3 1.2.3.4 1.2.3.1 1.2.3.2 1.2.3.5 1.2.5.1 1.2.5.2 Any 600 mm (2 ft) of stock length Any 300 mm (1 ft) run of stock length Accumulated twist per st

32、ock length (Including corner radii) at each end of waveguide length, and at intermediate points along the length At each end of the waveguide length and at intermediate points along the length At each end of waveguide length and at intermediate points along the length Destructive tests As in 1.2.2 o

33、f BS 9220 Edgewise bow: 0.25 mm (0.01 in) Flatwise bow: 0.5 mm (0.02 in) May not exceed 0.5 May not exceed 3 As in Table 1 As in Table 1 As in 1.2.3.5 of BS 9220 As in Table 2 Confirm that correct material from those listed under classes 1 to 4 in 1.1.6.2 4) of BS 9220 has been used Subgroup D6 CTR

34、InformationMeasurements information for all Group D tests a Measurements from Group A tests may be used. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:33:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N001:1971 BSI 04-20005 Table 1A Dimensions for or

35、dinary rectangular waveguide type R All dimensions in millimetres 12a34a5678a9a10 Wave- guide size Nominal frequency range GHz Inside cross section Nominal wall thickness Outside cross section Eccentricity Radius of corner Theoretical attenuation dB/m at 1.5 Rc for copper Peak power rating Preferred

36、 stock length WidthHeight Tolerance on width and height WidthHeight Tolerance on width and height InternalExternal FromTomax.min.max.MW 50 R5 R6 R8 R9 R12 R14 R18 R22 R26 R32 R40 R48 R58 R70 R84 R100 R120 R140 R180 R220 R260 R320 R400 R500 R620 R740 R900 R1200 R1400 R1800 R2200 R2600 0.41 0.49 0.64

37、0.76 0.96 1.14 1.45 1.72 2.17 2.60 3.22 3.94 4.64 5.38 6.58 8.20 9.84 11.9 14.5 17.6 21.7 26.4 33.0 39.3 49.9 60.5 73.8 92.3 114 145 172 217 0.62 0.75 0.98 1.15 1.46 1.73 2.20 2.61 3.30 3.95 4.90 5.99 7.05 8.18 10.0 12.5 15.0 18.0 22.0 26.7 33.0 40.1 50.1 59.7 75.8 92.0 112 140 173 220 261 330 457.2

38、 381.0 292.10 247.65 195.58 165.10 129.54 109.22 86.36 72.14 58.17 47.55 40.39 34.85 28.499 22.860 19.050 15.799 12.954 10.668 8.636 7.112 5.690 4.775 3.759 3.099 2.540 2.032 1.651 1.295 1.092 0.864 228.60 190.50 146.05 123.82 97.79 82.55 64.77 54.61 43.18 34.04 29.083 22.149 20.193 15.799 12.624 10

39、.160 9.525 7.899 6.477 4.318 4.318 3.556 2.845 2.388 1.880 1.549 1.270 1.016 0.826 0.648 0.546 0.432 0.20 0.18 0.14 0.11 0.10 0.076 0.064 0.051 0.046 0.038 0.025 0.025 0.020 0.020 0.020 0.020 0.020 0.020 0.020 0.020 0.020 0.020 0.020 b b b b 3.175 3.175 2.030 2.030 2.030 2.030 2.030 1.625 1.625 1.62

40、5 1.625 1.625 1.270 1.270 1.015 1.015 1.015 1.015 1.015 1.015 1.015 1.015 1.015 1.015 0.762 0.762 0.762 0.762 0.762 254.00 201.93 169.16 133.60 113.28 90.42 76.20 61.42 50.80 43.64 38.10 31.75 25.40 21.59 17.83 14.99 12.70 10.67 9.14 7.72 6.81 5.79 5.13 4.57 3.556 3.175 2.819 2.616 2.388 130.17 104.

41、14 86.61 68.83 58.67 47.42 38.10 32.33 25.40 23.44 19.05 15.88 12.70 12.06 9.93 8.51 6.35 6.35 5.59 4.88 4.42 3.91 3.58 3.30 2.540 2.350 2.172 2.070 1.956 0.20 0.20 0.15 0.13 0.10 0.076 0.076 0.051 0.051 0.051 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 0.025 b b b b 0.20

42、 0.20 0.15 0.15 0.13 0.13 0.10 0.10 0.076 0.076 0.064 0.064 0.064 0.064 0.064 0.064 0.051 0.051 0.051 0.051 0.051 0.051 0.051b b b b b 1.5 1.5 1.5 1.3 1.3 1.3 1.3 1.3 1.3 1.3 1.0 0.8 0.8 0.8 0.8 0.8 0.8 0.4 0.4 0.4 0.4 0.4 0.4 0.3 0.2 0.15 0.15 0.15 b b b b 1.5 1.5 1.5 1.5 1.5 1.0 1.0 1.0 1.0 1.0 0.

43、8 0.8 0.8 0.8 0.8 0.65 0.65 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5b b b b b 2.0 2.0 2.0 2.0 2.0 1.5 1.5 1.5 1.5 1.4 1.4 1.3 1.15 1.0 1.0 0.9 0.9 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75b b b b b 0.0011 0.0015 0.0022 0.0028 0.0041 0.0052 0.0075 0.0097 0.014 0.019 0.025 0.036 0.043

44、0.058 0.079 0.11 0.13 0.18 0.24 0.37 0.44 0.58 0.81 1.1 1.5 2.0 2.7 3.8 5.2 7.5 9.7 13.8 103.0 71.8 45.9 31.9 18.9 13.5 8.29 5.90 3.80 2.43 1.60 1.04 0.806 0.544 0.355 0.229 0.178 0.123 0.083 0.048 0.037 0.025 0.016 0.010 0.007 0.005 0.003 0.002 4270 4270 4270 4270 3660 3660 3050 3050 3050 3050 3050

45、 3050 3050 3050 2450 2440 2440 1830 1830 1830 1830 1830 1830 b b b b NOTEThe millimetre dimensions are derived from the original inch dimensions. a Non-mandatory. b Under consideration. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:33:34 GMT+00:00 2006, Unc

46、ontrolled Copy, (c) BSI BS 9220 N001:1971 6 BSI 04-2000 Table 1B Dimensions for ordinary rectangular waveguide type R All dimensions in millimetres 12a34a5678a910 Wave- guide size Nominal frequency range GHz Inside cross section Nominal wall thickness Outside cross section Eccentricity Radius of cor

47、ner Theoretical attenuation dB/m at 1.5 Rc for copper Peak power rating Preferred stock length WidthHeight Deviation on width and height WidthHeight Deviation on width and height InternalExternal FromToMax.Min.Max.MW 2 R5 R6 R8 R9 R12 R14 R18 R22 R26 R32 R40 R48 R58 R70 R84 R100 R120 R140 R180 R220

48、R260 R320 R400 R500 R620 R740 R900 R1200 R1400 R1800 R2200 R2600 0.41 0.49 0.64 0.76 0.96 1.14 1.45 1.72 2.17 2.60 3.22 3.94 4.64 5.38 6.58 8.20 9.84 11.9 14.5 17.6 21.7 26.4 33.0 39.3 49.9 60.5 73.8 92.3 114 145 172 217 0.62 0.75 0.98 1.15 1.46 1.73 2.20 2.61 3.30 3.95 4.90 5.99 7.05 8.18 10.0 12.5

49、 15.0 18.0 22.0 26.7 33.0 40.1 50.1 59.7 75.8 92.0 112 140 173 220 261 330 18.000 15.000 11.500 9.750 7.700 6.500 5.100 4.300 3.400 2.840 2.290 1.872 1.590 1.372 1.122 0.900 0.750 0.622 0.510 0.420 0.340 0.280 0.224 0.188 0.148 0.122 0.100 0.080 0.065 0.051 0.043 0.034 9.000 7.500 5.750 4.875 3.850 3.250 2.550 2.150 1.700 1.340 1.145 0.872 0.795 0.622 0.497 0.400 0.375 0.311 0.255 0.170 0.170 0.140 0.112 0.094 0.074 0