JJG948-1999数字式电动振动试验系统

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1、中华人民共和国国家计量检定规程J万G9铭一】999数字式电动振动试验系统DigitalElectrodynamicVibrationTestingSystem1999一12一22发布2000一04一01实施国家质量技术监督局发布JJG948-1999数字式电动振动试验系统检定规程VerificationRegulationofDigitalElectrodynamicVibrationTestingSystem本规程经国家质量技术监督局于1999年12月22日批准，并自2000年04月01日起施行。归口单位:全国振动冲击转速计量技术委员会起草单位:中国航

2、空工业总公司第三O四研究所中国计量科学研究院本规程委托全国振动冲击转速计量技术委员会负责解释JJG948-1999本规程主要起草人:洪宝林(中国航空工业总公司第三0四研究所)徐殷(中国计量科学研究院)张越(北京中元微型仪器公司)参加起草人:曾吾(中国航空工业总公司第三0四研究所)郑静芳(中国计量科学研究院)7dG948-1999目录1概述··························································································⋯⋯(1)2技术要求··········

3、··········································································⋯⋯(1)2.1试验系统检定时的环境条件·························································⋯⋯(1)2.2试验系统的标识········································································⋯⋯(1)2.3励磁装置······························

4、··················································⋯⋯(1)2.4数字式振动控制仪·····································································⋯⋯(1)2.5正弦振动试验系统···············································⋯⋯，’·············⋯⋯(2)2.6随机振动试验系统···················，·····························

5、····················⋯⋯(4)2.7正弦加宽带随机振动试验····························································⋯⋯(5)2.8窄带随机加宽带随机振动试验······················································⋯⋯(5)2.9冲击试验系统···········································································⋯⋯(6)3检定项目和检定设备·.

6、.........................................................................(6)4检定方法·········。··。。······································································⋯⋯(8)4.1适用范围···············································，·································⋯⋯(8)4.2试验系统的检查·······

7、·································································⋯⋯(8)4.3试验系统工作时最大噪声的检定···················································⋯⋯(8)4.4振动台台面漏磁的检定·······························································⋯⋯(8)4.5数字式振动控制仪频率示值误差的检定。···································

8、······⋯⋯(8)4.6数字式振动控制仪正弦信号谐波失真度的检定······