{"id":197412,"date":"2024-10-19T12:33:54","date_gmt":"2024-10-19T12:33:54","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asa-s1-20-2012\/"},"modified":"2024-10-25T05:07:33","modified_gmt":"2024-10-25T05:07:33","slug":"asa-s1-20-2012","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asa\/asa-s1-20-2012\/","title":{"rendered":"ASA S1.20 2012"},"content":{"rendered":"

None<\/p>\n

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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
9<\/td>\n1 Scope
2 Normative references
3 Terminology
4 Letter symbols
5 Applications
5.1 Application statement
5.2 Measurement types
5.3 Transmit and acoustic boundary considerations <\/td>\n<\/tr>\n
10<\/td>\n5.4 Annexes
6 Procedures for measuring performance characteristics
6.1 Preparing transducers for measurement <\/td>\n<\/tr>\n
12<\/td>\n6.2 Receive sensitivity methods and measurement conditions
6.3 Measurement of sensitivity and response-audio and ultrasonic frequency range <\/td>\n<\/tr>\n
17<\/td>\n6.4 Directional response of sensitivity and response measurement <\/td>\n<\/tr>\n
18<\/td>\n6.5 Voltage coupling loss
6.6 Electrical impedance and admittance measurements
6.7 Equivalent noise pressure <\/td>\n<\/tr>\n
19<\/td>\n7 Data reporting
7.1 Data reporting requirements <\/td>\n<\/tr>\n
20<\/td>\n7.2 Format of data presented
7.3 Specification of orientation <\/td>\n<\/tr>\n
21<\/td>\n7.4 Directional response graphic representation <\/td>\n<\/tr>\n
22<\/td>\n7.5 Presentation of electrical impedance and admittance data
8 Correction factors <\/td>\n<\/tr>\n
23<\/td>\n8.1 Hydrophone electrical loading corrections <\/td>\n<\/tr>\n
25<\/td>\n8.2 Transmit response corrections for transducers with extension cables
8.3 Attenuation correction
9 Uncertainties in free-field transducer calibrations
9.1 Introduction <\/td>\n<\/tr>\n
26<\/td>\n9.2 Reported uncertainty <\/td>\n<\/tr>\n
27<\/td>\n9.3 Common sources of uncertainty in free-field calibrations <\/td>\n<\/tr>\n
28<\/td>\n9.4 Uncertainty considerations <\/td>\n<\/tr>\n
30<\/td>\n10 Computation of derived characteristics
10.1 Directionality measures <\/td>\n<\/tr>\n
32<\/td>\n10.2 Acoustic power output (Pac) and acoustic power level (LP <\/td>\n<\/tr>\n
33<\/td>\n10.3 Electrical power input (Pel
ii \u00a9 2012 Acoustical Society of America \u2013 All rights reserved
\n 10.4 Transmitting efficiency <\/td>\n<\/tr>\n
34<\/td>\n10.5 Open-circuit effective bandwidth
10.6 Quality factor (Q <\/td>\n<\/tr>\n
35<\/td>\n11 References <\/td>\n<\/tr>\n
37<\/td>\nAnnex A Free-field calibration in a laboratory tank <\/td>\n<\/tr>\n
40<\/td>\nAnnex B Medium correction factors
B.1 Mass density
B.2 Sound speed <\/td>\n<\/tr>\n
41<\/td>\nB.3 Absorption coefficient <\/td>\n<\/tr>\n
43<\/td>\nAnnex C Measurement of sensitivity and response\u2014infrasonic and low audio-frequency range
C.1 Coupler reciprocity calibration of a hydrophone <\/td>\n<\/tr>\n
45<\/td>\nC.2 Secondary sensitivity calibration <\/td>\n<\/tr>\n
47<\/td>\nAnnex D Phase of free-field voltage sensitivity via reciprocity method <\/td>\n<\/tr>\n
50<\/td>\nAnnex E Nonlinear effects including cavitation <\/td>\n<\/tr>\n
54<\/td>\nAnnex F Standard-target method for calibrating active sonars
F.1 Standard target
F.2 Theory <\/td>\n<\/tr>\n
56<\/td>\nF.3 Applicability <\/td>\n<\/tr>\n
59<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ANSI\/ASA S1.20-2012 American National Standard Procedures for Calibration of Underwater Electroacoustic Transducers<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASA<\/b><\/a><\/td>\n2012<\/td>\n64<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":197415,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2652],"product_tag":[],"class_list":{"0":"post-197412","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-asa","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\/197412","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\/197415"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=197412"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=197412"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=197412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}