{"id":229275,"date":"2024-10-19T14:54:54","date_gmt":"2024-10-19T14:54:54","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-630342020\/"},"modified":"2024-10-25T09:02:59","modified_gmt":"2024-10-25T09:02:59","slug":"bs-en-iec-630342020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-630342020\/","title":{"rendered":"BS EN IEC 63034:2020"},"content":{"rendered":"

IEC 63034:2020 specifies the characteristics of microspeakers as well as the relevant test methods on microspeakers using steady-state sinusoidal signals, sinusoidal chirp, multi-tone or noise. The main characteristics include, but are not limited to, impedance, displacement, amplitude frequency response, distortion, and power handling.<\/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\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
6<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
10<\/td>\nFOREWORD <\/td>\n<\/tr>\n
12<\/td>\n1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms <\/td>\n<\/tr>\n
13<\/td>\n4 Conditions of measurement
4.1 Rated measuring conditions
4.2 Climatic conditions
4.3 Normal measuring conditions <\/td>\n<\/tr>\n
14<\/td>\n5 Acoustical environment
5.1 General
5.2 Free-field conditions
5.3 Half-space free-field conditions
5.4 Simulated free-field conditions
5.5 Half-space simulated free-field conditions
6 Mounting of the microspeaker
6.1 Mounting and acoustic loading of microspeaker units <\/td>\n<\/tr>\n
15<\/td>\n6.2 Mounting and acoustic loading of microspeaker systems
6.3 Standard micro-baffle
Figures
Figure 1 \u2013 Standard micro-baffle <\/td>\n<\/tr>\n
16<\/td>\n6.4 Measuring plane wave tube
Figure 2 \u2013 Standard micro-baffle with sub-baffle
Figure 3 \u2013 Plane wave tube <\/td>\n<\/tr>\n
17<\/td>\n7 Positioning of microspeaker and measuring microphone
7.1 Positioning of the microspeaker
7.1.1 General
7.1.2 Rated geometrical condition
7.1.3 Reference plane
7.1.4 Reference point
7.1.5 Normal vector
Figure 4 \u2013 Rated geometrical conditions of the microspeaker <\/td>\n<\/tr>\n
18<\/td>\n7.1.6 Polar vector
7.2 Measuring distance under free-field and half-space free-field conditions
7.2.1 Far-field condition
7.2.2 Single microspeaker unit (transducer)
7.2.3 Multi-unit microspeaker systems
7.3 Positioning of microspeaker and microphone in simulated free-field and half-space free-field conditions <\/td>\n<\/tr>\n
19<\/td>\n8 Measuring equipment
9 Accuracy of the measurement
9.1 General
9.2 Unwanted acoustic and electrical noise
9.3 Accuracy of the mounting
9.4 Accuracy of the measuring equipment
9.5 Accuracy of acoustic environment
10 Marking of terminals and controls
10.1 General <\/td>\n<\/tr>\n
20<\/td>\n10.2 Positive terminal
10.2.1 Characteristic to be specified
10.2.2 Marking
10.2.3 Method of testing
11 Test signals
11.1 General
11.2 Steady-state sinusoidal signal
11.3 Sinusoidal chirp signal <\/td>\n<\/tr>\n
21<\/td>\n11.4 Discrete multi-tone sinusoidal signal <\/td>\n<\/tr>\n
22<\/td>\n11.5 Broadband noise signal
11.6 Narrow-band noise signal
12 Preconditioning
12.1 Acclimatization
12.2 Pre-loading <\/td>\n<\/tr>\n
23<\/td>\n13 Electrical input impedance
13.1 Electrical input impedance curve
13.1.1 Characteristics to be specified
13.1.2 Method of measurement
13.2 Rated impedance
14 Small signal parameters of the microspeaker
14.1 General <\/td>\n<\/tr>\n
24<\/td>\n14.2 Characteristics to be specified
14.2.1 Resonance frequency fs
14.2.2 DC resistance of driver voice coil Rdc
14.2.3 Voice coil inductance Le
14.2.4 Total Q-factor Qts
14.2.5 Electrical Q-factor Qes
14.2.6 Mechanical Q-factor Qms
14.2.7 Mechanical compliance Cms <\/td>\n<\/tr>\n
25<\/td>\n14.2.8 Moving mass Mms
14.2.9 Mechanical resistance Rms
14.2.10 Force factor Bl
14.2.11 Equivalent air volume of a microspeaker unit compliance Vas
14.2.12 Effective radiation area SD
14.3 Method of measurement
14.3.1 General
14.3.2 Laser ranging method <\/td>\n<\/tr>\n
27<\/td>\n14.3.3 Added volume method
Figure 5 \u2013 Electrical input impedance curve of the microspeaker <\/td>\n<\/tr>\n
29<\/td>\n14.3.4 Added mass method
15 Displacement
15.1 Displacement curve
15.1.1 Characteristics to be specified
15.1.2 Method of measurement <\/td>\n<\/tr>\n
30<\/td>\n15.2 DC component Xdc
15.2.1 Characteristics to be specified
Figure 6 \u2013 Peak and bottom values of displacement
Figure 7 \u2013 Displacement curve <\/td>\n<\/tr>\n
31<\/td>\n15.2.2 Method of measurement
15.3 Distortion limited peak displacement Xd
15.3.1 Characteristics to be specified
15.3.2 Method of measurement
15.4 Sinusoidal peak displacement Xs
Figure 8 \u2013 DC component of displacement <\/td>\n<\/tr>\n
32<\/td>\n16 Amplitude frequency response
16.1 Rated frequency range
16.2 Frequency response
16.2.1 Characteristic to be specified
16.2.2 Method of measurement
16.3 Mean sound pressure in a stated frequency band
16.3.1 Characteristics to be specified
16.3.2 Method of measurement <\/td>\n<\/tr>\n
33<\/td>\n16.4 Effective frequency range
16.4.1 Characteristics to be specified
16.4.2 Method of measurement
17 Amplitude non-linearity
17.1 Total harmonic distortion (THD)
17.1.1 Characteristic to be specified
17.1.2 Method of measurement for input voltages up to the rated sinusoidal voltage <\/td>\n<\/tr>\n
34<\/td>\n17.2 Harmonic distortion of the nth order
17.2.1 Characteristic to be specified
17.2.2 Method of measurement for input voltages up to the rated sinusoidal voltage
17.3 Total higher-order harmonic distortion components (HOHD)
17.3.1 Characteristic to be specified
17.3.2 Method of measurement for input voltages up to the rated sinusoidal voltage <\/td>\n<\/tr>\n
35<\/td>\n17.4 Modulation distortion of the nth order (where n = 2 or n = 3)
17.4.1 Characteristic to be specified
17.4.2 Method of measurement <\/td>\n<\/tr>\n
36<\/td>\n18 Listening test
18.1 Listening test for normal operation
18.2 Listening test for irregular distortion <\/td>\n<\/tr>\n
37<\/td>\n19 Input voltage\/electrical power
19.1 Rated noise voltage\/power
19.1.1 Characteristic to be specified
19.1.2 Method of measurement
Figure 9 \u2013 Block diagram of test setup <\/td>\n<\/tr>\n
38<\/td>\n19.2 Short-term maximum input voltage\/power
19.2.1 Characteristic to be specified
19.2.2 Method of measurement
19.2.3 Protective devices <\/td>\n<\/tr>\n
39<\/td>\n19.3 Long-term maximum input voltage\/power
19.3.1 Characteristic to be specified
19.3.2 Method of measurement
19.3.3 Protective devices
19.4 Rated sinusoidal voltage\/power
19.4.1 Characteristic to be specified
19.4.2 Method of measurement <\/td>\n<\/tr>\n
40<\/td>\n20 Environmental testing
20.1 Temperature ranges
20.1.1 Performance-limited temperature range \u2013 Characteristic to be specified
20.1.2 Damage-limited temperature range \u2013 Characteristic to be specified
20.2 Humidity ranges
20.2.1 Relative humidity range \u2013 Characteristic to be specified
20.2.2 Damage-limited humidity range \u2013 Characteristic to be specified
20.3 Cold storage
20.3.1 Characteristic to be specified
20.3.2 Method of measurement
20.4 Cold usage
20.4.1 Characteristic to be specified
20.4.2 Method of measurement <\/td>\n<\/tr>\n
41<\/td>\n20.5 Dry heat storage
20.5.1 Characteristic to be specified
20.5.2 Method of measurement
20.6 Dry heat usage
20.6.1 Characteristic to be specified
20.6.2 Method of measurement <\/td>\n<\/tr>\n
42<\/td>\n20.7 Thermal shock (rapid change of temperature with prescribed time of transition)
20.7.1 Characteristic to be specified
20.7.2 Method of measurement
20.8 Steady damp heat
20.8.1 Characteristic to be specified
20.8.2 Method of measurement <\/td>\n<\/tr>\n
43<\/td>\n21 Stray magnetic fields
21.1 General
21.2 Static components
21.2.1 Characteristic to be specified
21.2.2 Method of measurement
Figure 10 \u2013 Measuring apparatus for stray magnetic field <\/td>\n<\/tr>\n
44<\/td>\n21.3 Dynamic components
21.3.1 Characteristic to be specified
21.3.2 Method of measurement <\/td>\n<\/tr>\n
45<\/td>\n22 Physical characteristics
22.1 Dimensions
22.2 Weight
23 Design data <\/td>\n<\/tr>\n
46<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Microspeakers<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n48<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":229282,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[643,2641],"product_tag":[],"class_list":{"0":"post-229275","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-160-50","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\/229275","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\/229282"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=229275"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=229275"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=229275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}