{"id":450690,"date":"2024-10-20T09:13:18","date_gmt":"2024-10-20T09:13:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-53052024\/"},"modified":"2024-10-26T17:10:53","modified_gmt":"2024-10-26T17:10:53","slug":"bs-iso-53052024","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-53052024\/","title":{"rendered":"BS ISO 5305:2024"},"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\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
7<\/td>\nForeword <\/td>\n<\/tr>\n
8<\/td>\nIntroduction <\/td>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative reference documents
3 Terms and definitions <\/td>\n<\/tr>\n
13<\/td>\n4 Abbreviated terms
5 Instrumentation
5.1 General
5.2 Calibration
6 General requirements
6.1 General <\/td>\n<\/tr>\n
14<\/td>\n6.2 Requirements of acoustic far-field condition
6.3 Requirements of position of UAS to reduce aerodynamic flow effect
6.4 Requirements of position control
6.4.1 General
6.4.2 Requirement of position accuracy <\/td>\n<\/tr>\n
15<\/td>\n6.4.3 Requirement of speed accuracy
6.5 Requirements of background noise
7 Anechoic chamber tests
7.1 General <\/td>\n<\/tr>\n
16<\/td>\n7.2 Requirements of anechoic chamber
7.2.1 Size
7.2.2 Anechoic chamber qualification
7.3 Measurement configurations
7.3.1 General <\/td>\n<\/tr>\n
18<\/td>\n7.3.2 Hover and yaw: 4-microphone approach <\/td>\n<\/tr>\n
20<\/td>\n7.3.3 Hover and yaw: multiple microphone approach <\/td>\n<\/tr>\n
21<\/td>\n7.3.4 Take-off and landing <\/td>\n<\/tr>\n
23<\/td>\n7.3.5 Cruise flight <\/td>\n<\/tr>\n
24<\/td>\n8 Anechoic wind tunnel tests
8.1 General
8.2 Requirements of anechoic wind tunnel
8.2.1 General
8.2.2 Wind tunnel test configurations <\/td>\n<\/tr>\n
25<\/td>\n8.2.3 Refraction correction
8.2.4 Microphone clearance distance
8.2.5 Anechoic chamber size
8.3 Measurement configurations
8.3.1 General <\/td>\n<\/tr>\n
26<\/td>\n8.3.2 Take-off and landing <\/td>\n<\/tr>\n
28<\/td>\n8.3.3 Cruise flight <\/td>\n<\/tr>\n
30<\/td>\n9 Outdoor tests
9.1 General <\/td>\n<\/tr>\n
31<\/td>\n9.2 Recommendations of the test site <\/td>\n<\/tr>\n
32<\/td>\n9.3 Recommendations and requirements of the meteorological conditions
9.4 Microphone configuration and layout
9.4.1 Microphone configuration
9.4.2 Microphone layout <\/td>\n<\/tr>\n
33<\/td>\n9.5 Measurement corrections and limitations <\/td>\n<\/tr>\n
34<\/td>\n9.6 Measurement procedures
9.6.1 General
9.6.2 Hover and yaw
9.6.3 Take-off and landing <\/td>\n<\/tr>\n
35<\/td>\n9.6.4 Cruise flight
10 Uncertainties
10.1 General
10.2 Uncertainty sources and requirements <\/td>\n<\/tr>\n
36<\/td>\n10.3 Evaluation of the uncertainty <\/td>\n<\/tr>\n
37<\/td>\n11 Information to report
11.1 Test methods
11.2 Selected noise metrics
11.3 UAS under test
11.4 Test environment
11.5 Data acquisition system <\/td>\n<\/tr>\n
38<\/td>\n11.6 Measurement
11.7 Results <\/td>\n<\/tr>\n
39<\/td>\nAnnex A (Informative) Examples of the procedures to compute noise metrics from the recorded sound pressure signals <\/td>\n<\/tr>\n
42<\/td>\nAnnex B (Informative) Numerical examination of the acoustic far-field condition <\/td>\n<\/tr>\n
46<\/td>\nAnnex C (Informative) Measurement of far-field condition for a UAS propeller noise <\/td>\n<\/tr>\n
48<\/td>\nAnnex D (Informative) An example of adjusting the UAS location to realize different equivalent observer angles <\/td>\n<\/tr>\n
49<\/td>\nAnnex E (Informative) The effect of using windscreen for UAS propeller noise measurements <\/td>\n<\/tr>\n
51<\/td>\nAnnex F (Informative) Examples of ground-board mounted microphone configurations <\/td>\n<\/tr>\n
53<\/td>\nAnnex G (Informative) Uncertainty analysis example of a UAS noise measurement <\/td>\n<\/tr>\n
56<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Noise measurements for UAS (unmanned aircraft systems)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2024<\/td>\n58<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":450693,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-450690","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/450690","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\/450693"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=450690"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=450690"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=450690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}