军事知识服务平台
首页 > 资源导航 > 标准 > 仪器、仪表 > 实验室仪器与真空仪器
标准分类
发布日期
全部
订阅
收起
标准
  • IEC 61094-1-2000 - 中外标准 - - 2000/7 - 现行
    Specifies mechanical dimensions and certain electroacoustic characteristics for condenser microphones used as laboratory standards for the realization of the unit of sound pressure and for sound pressure measurements of the highest attainable accuracy. The specifications are intended to ensure that primary calibration by the reciprocity method can be readily carried out. Establishes a system for classifying laboratory standard condenser microphones into a number of types according to their dimensions and properties.
    实验室器皿电声器件规范(验收)传声器测量仪器测定Acoustoelectric devicesCalibrationClassificationCondenser microphonesDefinitionsDeterminationsDimensionsElectroacousticsEnvironmental conditionLaboratoriesLaboratory apparatusLaboratory equipmentLaboratory wareMeasurementMeasurement microphonesMeasuring instrumentsMeasuring techniquesMicrophonesNormalPressure chambersPressure transmissionPropertiesRatingsReference conditionsSound pressureSpecification (approval)Testing
  • ISO 4796-1-2000 - 中外标准 - - 2000/4 - 作废
    耐化学腐蚀材料作标记容量尺寸实验室玻璃器皿烧瓶实验室设备螺纹闭塞物螺纹颈口材料耐微生物生长玻璃体积玻璃瓶规范实验室器皿BottlesCapacityChemical-resistant materialsDimensionsFlasksGlassGlass bottlesLaboratory equipmentLaboratory glasswareLaboratory wareMarkingMaterialsMicrobiological-growth-resisting materialsNecksScrew necksScrewed closuresSpecificationsVolume
  • 服务由 质检出版社 提供

    GB/T 4130-2000 - 中外标准 - - 2000/3 - 作废
    本标准规定了1Hz~3.15 kHz频率范围内校准水听器的方法。  本标准规定的方法分为一级校准方法和二级校准方法。  一级校准方法校准不确定度不大于0.5dB,主要用于校准标准水听器。它包括耦合腔互易法、压电补偿法和振动液柱法。  二级校准方法校准不确定度不大于1.0dB,主要用于校准测量水听器。它包括密闭腔比较法和活塞发声器校准方法。
    校正声学低频声学测量精密度水听器acoustic measurementprecisioncalibrationlow-frequencieslow frequenciesacoustic measurementshydrophonesacousticsacoustic measuring
回到顶部
选择了条数据