JJG374-1997电平振荡器检定规程.pdf

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1、中华人民共和国国家计量检定规程.TJG374-1997电平振荡器LevelOscillator1997一06一27发布1998一01一01实施国家技术监督局发布.i.1G374-1997电平振荡器检定规程产口.O.0.O.O.0.O.0.O.0.0.O.0.口.、?。.。.。JJG374-1997.。VerificationRegulationof.。.。.护、.口.0.o.0.0.0.o.o.0.0.0.0.0.。LevelOscillator本检定规程经国家技术监督局于1997年06月27日批准，并自1998年01月01日起施行。归口单位:全国无线电计量技术委员

2、会起草单位:中国计量科学研究院邮电部通信计量中心本规程技术条文由起草单位负责解释JJG374-1997本规程主要起草人:成汉湘(中国计量科学研究院)方金秀(邮电部通信计量中心)JJG374-1997目录一概述·······················································································⋯⋯(1)二主要技术要求·................................................................................(1

3、)三检定条件·......................................................................................(1)(一)环境条件···········································································⋯⋯(1)(二)检定用设备········································································⋯⋯(1)四检定项目·............

4、..........................................................................(2)五检定方法·......................................................................................(2)(一)外观及工作正常性检查·························································⋯⋯(2)(二)频率示值误差检定····························

5、···································⋯⋯(2)(三)零电平示值基本误差及频响误差检定·······································⋯⋯(3)(四)步进电平示值基本误差及频响误差检定····································⋯⋯(3)(五)电平指示器示值误差检定······················································⋯⋯(4)(六)输出谐波衰减或波形失真度测量································

6、·············⋯⋯(5)(七)输出非谐波衰减测量····························································⋯⋯(6)(八)输出反射损耗测量·······························································⋯⋯(6)(九)输出信号平衡度测量····························································⋯⋯(7)六检定结果处理和检定周期·......................

7、...........................................(7)附录检定测量数据表格格式·.................................................................(8)JJG374-1997电平振荡器检定规程本规程适用于新制造、使用中和修理后，频率范围为20Hz-100MHz的电平振荡器的检定。一概述电平振荡器是电信网检测的配套仪表，主要用于通信设备的制造、安装以及通信局、站的维护与测试，并广泛应用于科研、院校等部门，用来提供电平信号。电平振荡器一般采用差频原理工作，输出信号是