BS CECC 68 200-1991 电子元器件质量评定协调体系.分规范.石英晶体单元(合格鉴定)
时间:2024-05-15 16:10:20 来源: 标准资料网 作者：标准资料网 阅读：9736
【英文标准名称】:Harmonizedsystemofqualityassessmentforelectroniccomponents.Sectionalspecification:quartzcrystalunits(qualificationapproval)
【原文标准名称】:电子元器件质量评定协调体系.分规范.石英晶体单元(合格鉴定)
【标准号】:BSCECC68200-1991
【标准状态】:作废
【国别】:英国
【发布日期】:1991-05-31
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:抽样表;压电器件;石英;晶体谐振器;统计质量控制;鉴定试验;详细规范;规范(审批);检验;评估的质量;抽样方法;电子设备及元件;质量保证体系;质量管理;资格鉴定;介质装置
【英文主题词】:
【摘要】:
【中国标准分类号】:L21
【国际标准分类号】:
【页数】:28P;A4
【正文语种】:英语
Product Code:SAE AIR877
Title:Aerospace - Particle Count Data Conversion and Extrapolation
Issuing Committee:A-6c1 Contamination And Filtration Committee
Scope: This Aerospace Information Report (AIR) describes a mathematical model that can be used to analyze particle count data. Particle counts that fit the model can be graphically displayed, converted from one counting size-frequency range to another, and extrapolated to estimate counts beyond the measured range. Derivation, applications and calculations are described. Cumulative particle counts larger than stated size-range are fitted against a modified log-normal distribution function by plotting on special log-log graph paper. Many real particle distributions approximate a straight line, showing good fit for this log-normal model. The resultant plot provides a basis for further analysis, including size-range conversion and extrapolation.【英文标准名称】:Rigidprecisioncoaxiallinesandtheirassociatedprecisionconnectors.Part3:14mmrigidprecisioncoaxiallineandassociatedhermaphroditicprecisioncoaxialconnector-Characteristicimpedances50ohmsand75ohms
【原文标准名称】:刚性精密同轴线及其相关的精密连接器第3部分:14mm刚性精密同轴线及其相关中性精密同轴连接器特性阻抗50Ω和75Ω
【标准号】:IEC60457-3-1980
【标准状态】:现行
【国别】:国际
【发布日期】:1980
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC46D
【标准类型】:()
【标准水平】:()
【中文主题词】:电信;电气工程;阻抗;电连接器;同轴电缆;同轴连接器;无极性连接器;插头
【英文主题词】:Coaxialcables;Coaxialconnectors;Electricconnectors;Electricplugs;Electricalengineering;Impedance;Sexlessconnectors;Telecommunication
【摘要】:ComplementsIEC457-1byreferringtovariousclausesandsub-clausescontainedinPart1towhichimportantinformationisadded.Thisconcernsmaximumfrequency,electricallength,thetypedesignationbeingstillunderconsideration,standardatmosphe
【中国标准分类号】:L91;L23
【国际标准分类号】:33_120_10;33_120_30
【页数】:13P.;A4
【正文语种】:英语