{"id":417500,"date":"2024-10-20T06:16:19","date_gmt":"2024-10-20T06:16:19","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61094-82012-2\/"},"modified":"2024-10-26T11:40:51","modified_gmt":"2024-10-26T11:40:51","slug":"bs-en-61094-82012-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61094-82012-2\/","title":{"rendered":"BS EN 61094-8:2012"},"content":{"rendered":"<p>This part of the IEC&nbsp;61094 series is applicable to working standard microphones meeting the requirements of IEC&nbsp;61094-4. It describes methods of determining the free-field sensitivity by comparison with a laboratory standard microphone or working standard microphone (where applicable) that has been calibrated according to either:<\/p>\n<ul>\n<li>\n<p>IEC&nbsp;61094-3,<\/p>\n<\/li>\n<li>\n<p>IEC&nbsp;61094-2 or IEC&nbsp;61094-5, and where factors given in IEC\/TS&nbsp;61094-7 have been applied,<\/p>\n<\/li>\n<li>\n<p>IEC&nbsp;61094-6,<\/p>\n<\/li>\n<li>\n<p>this part of IEC&nbsp;61094.<\/p>\n<\/li>\n<\/ul>\n<p>Methods performed in an acoustical environment that is a good approximation to an ideal free-field (e.g. a high quality free-field chamber), and methods that use post processing of results to minimise the effect of imperfections in the acoustical environment, to simulate free-field conditions, are both covered by this part of IEC&nbsp;61094. Comparison methods based on the principles described in IEC&nbsp;61094-3 are also possible but beyond the scope of this part of IEC&nbsp;61094.<\/p>\n<blockquote>\n<p>NOTE 1 This part of IEC&nbsp;61094 is also applicable to laboratory standard microphones meeting the requirements of IEC&nbsp;61094-1, noting that these microphones also meet the electroacoustic specifications for working standard microphones.<\/p>\n<\/blockquote>\n<blockquote>\n<p>NOTE 2 This part of IEC&nbsp;61094 is also applicable to combinations of microphone and preamplifier where the determined sensitivity is referred to the unloaded output voltage of the preamplifier.<\/p>\n<\/blockquote>\n<blockquote>\n<p>NOTE 3 Other devices, for example, sound level meters can be calibrated using the principles of this part of IEC&nbsp;61094, but are not within the scope of this standard.<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p><b>Electroacoustics. Measurement microphones &#8211; Methods for determining the free-field sensitivity of working standard microphones by comparison<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2013<\/td>\n<td>34<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":417508,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[270,2641],"product_tag":[],"class_list":{"0":"post-417500","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\/417500","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\/417508"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=417500"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=417500"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=417500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}