IEEE 1149.5-1995 模件试验和维护总线(MTM-Bus)协议

上一篇: BS EN 168100-1995 电子元器件质量评定协调体系.石英晶体器件的分规范(性能验收)
下一篇: ISO 11963-1995 塑料聚碳酸酯板材类型、尺寸和特性

Product Code:SAE J2710
Title:Modal Testing and Identification of Lower Order Tire Natural Frequencies of Radial Tires
Issuing Committee:Vehicle Dynamics Standards Committee
Scope:This SAE Recommended Practice describes test methods for measuring and identifying the lower order natural frequencies of an inflated radial tire with a fixed rim while expending modest effort and employing a minimum of test equipment. The methods apply to any size of radial tire so long as the test equipment is properly scaled to conduct the measurements for the intended test tire. Two types of boundary conditions are considered for the tire: unloaded and loaded against a flat surface. The test involves the performance and measurement of an input vibratory force (excitation) to the tire and the corresponding vibratory output (response). The data are suitable for use in determining parameters for road load models and for comparative evaluations of the measured properties in research and development. NOTES: The focus of this standard is identification and reporting of the lower order natural frequencies of the tire using a simple test procedure. While higher order natural frequencies may be excited during these tests, the reliable identification of the associated mode shapes is not addressed in this document. Herein, road load models are models for predicting forces applied to the vehicle spindles during operation over irregular pavements. Within the context of this Recommended Practice, forces applied to the pavement are not considered.

标准名称：	高清晰度有线数字电视机顶盒技术要求和测量方法
英文名称：	Technical requirements and measurement methods of digital cable television set top box for high definition
发布部门：	国家广播电影电视总局
发布日期：	2009-11-04
实施日期：	2009-11-04
首发日期：
作废日期：
主管部门：	全国广播电影电视标准化技术委员会
归口单位：	全国广播电影电视标准化技术委员会
起草单位：	国家广播电影电视总局广播电视规划院、国家广播电影电视总局广播科学研究院、上海文广新闻传媒集团、中央电视台、北京歌华有线电视网络股份有限公司、天津广播电视网络有限公司、深圳天威视讯股份有限公司、华为技术
出版社：	国家广播电影电视总局
出版日期：	2009-11-04

本标准适用于高清晰度有线数字电视机顶盒单向传输的基本技术要求、测量方法和功能检查方法。对于能够确保同样测量不确定度的任何等效测量方法也可以采用。有争议时，应以本标准为准。
本标准适用于高清晰度机顶盒的研发、生产和使用。

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