{"id":435027,"date":"2024-10-20T07:47:21","date_gmt":"2024-10-20T07:47:21","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-23-30461659-dc\/"},"modified":"2024-10-26T14:46:11","modified_gmt":"2024-10-26T14:46:11","slug":"bsi-23-30461659-dc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-23-30461659-dc\/","title":{"rendered":"BSI 23\/30461659 DC"},"content":{"rendered":"

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
6<\/td>\nFOREWORD <\/td>\n<\/tr>\n
8<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
10<\/td>\n4 Overview of method
4.1 Method A \u2013 Delay measuring
4.2 Method B \u2013 Backscattering
4.3 Method C \u2013 Fibre elongation <\/td>\n<\/tr>\n
11<\/td>\n4.4 Method D \u2013 Mechanical length
4.5 Method E \u2013 Phase shift
4.6 Reference test method
5 Apparatus
7 Procedure
8 Calculations
9 Results <\/td>\n<\/tr>\n
12<\/td>\n10 Specification information <\/td>\n<\/tr>\n
13<\/td>\nAnnex A (normative) Requirements specific to method A \u2013 Delay measuring
A.1 General
A.2 Principle
A.3 Apparatus
A.3.1 Two techniques <\/td>\n<\/tr>\n
15<\/td>\nA.3.2 Optical source
A.3.2.1 Measurement with the sampling oscilloscope
A.3.2.2 Measurement with a counter or a backscattering apparatus
A.3.3 Optical detector
A.4 Procedure
A.4.1 Calibration
A.4.2 Average group index value
A.4.3 Length measurement <\/td>\n<\/tr>\n
17<\/td>\nA.5 Calculations
A.5.1 Transmitted-pulse technique
A.6 Results <\/td>\n<\/tr>\n
18<\/td>\nAnnex B (normative) Requirements specific to method B \u2013 Backscattering
B.1 General
B.2 Apparatus
B.2.1 Optical transmitter <\/td>\n<\/tr>\n
19<\/td>\nB.2.2 Launch conditions
B.2.3 Optical splitter
B.2.4 Optical receiver
B.2.5 Pulse duration and repetition rate
B.2.6 Signal processor
B.2.7 Display
B.2.8 Data interface (optional) <\/td>\n<\/tr>\n
20<\/td>\nB.2.9 Reflection controller (optional)
B.2.10 Splices and connectors
B.3 Sampling and specimens
B.4 Procedure
B.4.1 Three techniques
B.4.2 Procedure common to all three techniques <\/td>\n<\/tr>\n
21<\/td>\nB.4.3 Procedures specific to each technique
B.4.3.1 Two-point technique
B.4.3.2 Single-point technique 0
B.4.3.3 Single-point technique 1 <\/td>\n<\/tr>\n
23<\/td>\nB.4.4 Determination of group index <\/td>\n<\/tr>\n
24<\/td>\nB.5 Results <\/td>\n<\/tr>\n
25<\/td>\nAnnex C (normative) Requirements specific to method C \u2013 Fibre elongation
C.1 Principle
C.2 Apparatus
C.2.1 General requirements
C.2.2 Optical measurement equipment <\/td>\n<\/tr>\n
26<\/td>\nC.2.2.1 Phase-shift technique
C.2.2.2 Pulse-delay (time of flight) technique
C.2.3 Instrument resolution <\/td>\n<\/tr>\n
27<\/td>\nC.3 Procedure
C.3.1 Calibration
C.3.2 Specimen measurement
C.4 Results <\/td>\n<\/tr>\n
28<\/td>\nAnnex D (normative) Requirements specific to method D \u2013 Mechanical length
D.1 Principle
D.2 Apparatus
D.3 Procedure
D.3.1 Calibration
D.3.2 Operation <\/td>\n<\/tr>\n
29<\/td>\nAnnex E (normative) Requirements specific to method E \u2013 Phase shift
E.1 General
E.2 Apparatus
E.2.1 Light source
E.2.2 Modulator <\/td>\n<\/tr>\n
30<\/td>\nE.2.3 Launch optics
E.2.4 Signal detector and signal detection electronics
E.2.5 Reference signal
E.2.6 Computation equipment <\/td>\n<\/tr>\n
31<\/td>\nE.3 Sampling and specimens
E.4 Procedure
E.4.1 Selection of starting frequency
E.4.2 Selection of maximum frequency
E.4.3 Phase measurement performance
E.4.4 Measurement of length of test fibre
E.4.4.1 Calibration of reference phase <\/td>\n<\/tr>\n
32<\/td>\nE.4.4.2 Measurement of test fibre phase
E.5 Calculation and interpretation of results
E.5.1 Determination of test fibre length <\/td>\n<\/tr>\n
33<\/td>\nE.6 Group index
E.6.1 Introduction
E.6.2 Cut-back method
E.6.3 Substitution method <\/td>\n<\/tr>\n
35<\/td>\nAnnex F (informative) Brillouin frequency shift test method
F.1 General
F.2 Principle <\/td>\n<\/tr>\n
36<\/td>\nF.3 Apparatus
F.3.1 General requirements
F.3.2 Optical measurement equipment
F.3.2.1 General
F.3.2.2 BOTDR <\/td>\n<\/tr>\n
37<\/td>\nF.3.2.3 BOTDA
F.3.3 Instrument resolution
F.4 Procedure
F.4.1 Calibration <\/td>\n<\/tr>\n
38<\/td>\nF.4.2 Specimen measurement <\/td>\n<\/tr>\n
39<\/td>\nF.5 Results <\/td>\n<\/tr>\n
40<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

BS EN IEC 60793-1-22. Optical fibres – Part 1-22. Measurement methods and test procedures. Length measurement<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2023<\/td>\n40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":435037,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[649,2641],"product_tag":[],"class_list":{"0":"post-435027","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-180-10","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/435027","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/435037"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=435027"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=435027"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=435027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}