{"id":79598,"date":"2024-10-17T18:36:02","date_gmt":"2024-10-17T18:36:02","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ieee-1027-1984\/"},"modified":"2024-10-24T19:40:39","modified_gmt":"2024-10-24T19:40:39","slug":"ieee-1027-1984","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ieee\/ieee-1027-1984\/","title":{"rendered":"IEEE 1027 1984"},"content":{"rendered":"

New IEEE Standard – Inactive – Superseded. A practical method for determining the magnetic-field characteristics of a telephone receiver by means of objective measurements in a test connection is described. The method was developed in response to a need to specify the magnetic field at selected locations around a telephone receiver, required for satisfactory coupling of hearing aids. However, the method is sufficiently general to allow complete mapping of the magnetic field. It is also useful for other applications where knowledge of the magnetic field intensity is required.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
7<\/td>\n1 Introduction
2 ScopeandPurpose
3 Definitions
4 Test Equipment
4.1 Probecoils
Fig 1 Reference Plane <\/td>\n<\/tr>\n
8<\/td>\n4.2 Integrator
4.3 Variable Frequency Oscillator
4.4 ACVoltmeter
4.5 Level Recorder
4.6 StandardTest Circuit
Fig 2 Air Core Probe Coil
Fig 3 Probe Coil with Magnetic Material Core
Fig4 Test Circuit <\/td>\n<\/tr>\n
9<\/td>\n4.7 BandpassFilter
5 System Calibration
5.1 Sensitivity
5.2 Frequency Response
5.3 Linearity
5.4 Signal to Noise Ratio
(a) Transformer Type Feed Circuit (b) Relay Coil Type Feed Circuit <\/td>\n<\/tr>\n
10<\/td>\n6 Testprocedure
6.1 General
6.2 Conditioning
6.3 Receiver Acoustic Termination
6.4 Measurement of Magnetic Field Magnitude and Direction
6.5 FrequencyResponse <\/td>\n<\/tr>\n
11<\/td>\n6.6 Distortion
6.7 Test Conditions <\/td>\n<\/tr>\n
12<\/td>\nAppendix A Integrator <\/td>\n<\/tr>\n
13<\/td>\nCoil Output Voltage Derivation
Generation of a Known Magnetic Field Using Helmholz Coils <\/td>\n<\/tr>\n
14<\/td>\nFigC1 HelmholzCoils <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Draft Trial-Use Standard Method for Measuring the Magnetic Field Intensity Around a Telephone Receiver<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
IEEE<\/b><\/a><\/td>\n1984<\/td>\n14<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":79599,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2644],"product_tag":[],"class_list":{"0":"post-79598","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ieee","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\/79598","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\/79599"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=79598"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=79598"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=79598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}