{"id":423925,"date":"2024-10-20T06:49:11","date_gmt":"2024-10-20T06:49:11","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iec-tr-61094-102022\/"},"modified":"2024-10-26T12:48:18","modified_gmt":"2024-10-26T12:48:18","slug":"bsi-pd-iec-tr-61094-102022","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iec-tr-61094-102022\/","title":{"rendered":"BSI PD IEC TR 61094-10:2022"},"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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
6<\/td>\nFOREWORD <\/td>\n<\/tr>\n
8<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
9<\/td>\n4 Reference environmental conditions
5 Principles of absolute pressure calibration of microphones using a calculable pistonphone
5.1 General principle
5.2 Basic expressions <\/td>\n<\/tr>\n
10<\/td>\nFigures
Figure 1 \u2013 Equivalent circuit for evaluating the sound pressure overthe exposed surface of the diaphragm of the microphone <\/td>\n<\/tr>\n
11<\/td>\n5.3 Heat conduction correction
5.4 Operating frequency range
6 General characteristics
6.1 The pistonphone <\/td>\n<\/tr>\n
12<\/td>\n6.2 Measuring the piston volume velocity
6.3 Test signals
6.4 Mounting the microphone and pressure-equalizing tube
6.5 Measuring the output voltages of the microphones
7 Factors influencing the pressure sensitivity
7.1 General <\/td>\n<\/tr>\n
13<\/td>\n7.2 Polarizing voltage
7.3 Shield configuration
7.4 Dependence on environmental conditions
7.4.1 General
7.4.2 Static pressure
7.4.3 Temperature <\/td>\n<\/tr>\n
14<\/td>\n7.4.4 Humidity
7.5 Vibration
7.6 Distortion
8 Calibration uncertainty components
8.1 General
8.2 Measurements of microphone output voltage
8.3 Piston
8.3.1 Frequency
8.3.2 Measurement of the volume velocity <\/td>\n<\/tr>\n
15<\/td>\n8.4 Acoustic transfer impedance
8.4.1 Cavity properties
8.4.2 Physical quantities
8.5 Microphone parameters
8.5.1 Front cavity
8.5.2 Acoustic impedance <\/td>\n<\/tr>\n
16<\/td>\n8.5.3 Polarizing voltage
8.6 Uncertainty on pressure sensitivity level
Table 1 \u2013 Uncertainty components <\/td>\n<\/tr>\n
18<\/td>\nAnnex A (informative)Example designs of pistonphones using laser interferometry
Figure A.1 \u2013 Schematic cross-section of a laser pistonphone <\/td>\n<\/tr>\n
19<\/td>\nFigure A.2 \u2013 Example of laser pistonphone
Figure A.3 \u2013 Example of laser pistonphone <\/td>\n<\/tr>\n
20<\/td>\nAnnex B (informative)Measurement uncertainties
B.1 General
B.2 Example of a typical uncertainty analysis
B.2.1 General
B.2.2 Uncertainty budget <\/td>\n<\/tr>\n
21<\/td>\nB.2.3 Combined and expanded uncertainties
Table B.1 \u2013 Example of uncertainty budget at 1 Hz <\/td>\n<\/tr>\n
22<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Electroacoustics. Measurement microphones – Absolute pressure calibration of microphones at low frequencies using calculable pistonphones<\/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>\n24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":423933,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[270,2641],"product_tag":[],"class_list":{"0":"post-423925","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-17-140-50","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\/423925","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\/423933"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=423925"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=423925"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=423925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}