Design theory of stored testing and measuring system and its realization in dynamic data measurement of missileBeijing Institute of TechnologyStored testing and measuring is a kind of dynamic test technology wherein micro data recording gauge is embedded in the object to be measured in the condition that there is no or allowable effect on it. The information is collected and memorized at the spot in real time. The recording device is recollected and computer is used to process the measured information. The key to realize dynamic stored testing and measuring lies in developing of stored testing and measuring system (STMS) that can work normally in the testing environment and have either no effect on the object to be measured or the effect is in the allowable range.The definition, character, application field and basic elements are studied systematically. The overall review of research and development situation in home and oversea is given. During Ph.D candidate studying period, the author has presided over the development of data-recording devices used on 60 channels dynamic data testing and measuring (TM) during atmosphere-reentering of intercontinental ballistic missile (ICBM) warhead, intelligent missile blockbox used on dynamic data-recording of certain heavy anti-tank missile flight, anti-warship missile slip track flight fuse data testing and measuring system, cannon shoot missile ball cartridge flight data-recording device, STMS of inner overloading curve of penetrative pill and ball chamber. Based on these experiences the author analyses thoroughly the inner rules of testing and measuring technology and summarize the design concept and design rules in a philosophical view. The design principles that can conduct theengineering practice of STM are established, which make the design of STMS optimized in a logical and rational way.The STMS researched in the paper mainly used in the special environment with the following attributes: (1) transient single process;(2)multi-parameter interrelation, strict time-relation and the need of precise measuring simultaneously; (3) analogue and digital information, high range transient signal and micro range slow-change signal exist simultaneously (the range difference greater than four orders and both the amplitude-testing and the process-recording is needed); (4) bad testing and measuring environment, for example, high temperature up to 3000℃, high press up to 1000Mpa, 100,000g strong impact vibration , high rotate speed and strong magnetic disturbance; (5)the measured system is high-technology product with expensive test (up to tens of millions RMB for one experiment); (6) small test space (no disturbance to the tested system is required and effect be smallest); (7) difficult to recovery; and so on.After systematically studying many of the STMS examples, the design theory and ten microscopical design principles of STMS are presented. They include realizability of working principle, recollectability of testing and measuring data, matching and/or harmonizing, compatibility, environment-adaptability, reusing and calibrationability, flexible design, modularization design, optimizing and trade-off of technology schemes. The conception of state design of STMS is firstly presented. The basic conceptions (for example, STMS state, state variable, state space, state net, state assemble and state chain) are defined, followed by studying of state assemble, establishing of state chain and/or state net design principles and methods. Further, their application scope and typical applications are illustrated. The time power factor theory andthe mathematics description of system state and its transformation are presented.Considering STMS as an information transmission system, the information transmission model of it is established. The testing and measuring information flow, equivalent information transmission model and noise model are analyzed. From the information transmission view, the similarity between STMS and Shannon communication system is compared to establish the theory basis for studying TM channel by application information theory.Quantify algorithmic defining information of measured signal that make use of entropy and entropy power has been presented, including TM channel capacity principle, the maxim interinformation principle and information rate distortion principle. Channel capacity of continuous analogue signal TM and anti-disturbance capacity limitation. The relation equation between STM channel transmission information and signal energy as well as TM channel anti-disturbance capacity limitation equation is established. The optimization analogue signal TM channel is presented, based on analysis of channel frequency character and information entropy, the maxim SNR condition of TM channel and the condition wherein both the minim TM channel output waveform and the maxim SNR condition are obtained. In the design of TM channel information the conception of distortion and rate distortion is introduced, moreover, the calculation equation of TM channel information rate distortion function is established.STMS digital signal TM channels are composed of one or more duality signal channel. In the paper, the digital test channels are synthesized as a combinaiton of “Z” channel and the channel of symmetric disturbed information. The basic channel and channel capacity as well as caculaiton of channel overlap probability are researched. Moreover, the informationchannels capacity and the best channels layout of test instruction channels and test data channels are discussed.Sampling and quantizing are the most important technology in STMS, which is related to information obtaining quality and STM precision. In common sampling TM system, the sampling frequency setup is inclined to be high (especially while the measured object is not known clearly) in order to obtain enough data. Thus, there is much information redundancy. Real time information compression technology must be developed so that more information that is useful can be recorded in the limited memory (reversely, the STMS cost can be reduced since the needed memory capacity is compressed).According to the attribute of the measured signal, the TM requirement, working environment and so on, the basic problems of STM sampling design are researched. Four STM sampling strategy (uniformity sampling, automatic subsection uniformity sampling, programmable self-adaptive subsection uniformity sampling and self-adaptive sampling) are presented. The algorithm of zero order and one order predictable self-adaptive sampling is introduced in detail. The source of sampling error and the method to avoid it are analyzed and researched.Two kinds of sampling signal quantizers (uniformity and ununiformity) are presented. The information rate distortion function of the uniformity quantizer and the SNR algorithm are established. The signal capacity and multi-channel information TM principle is researched. The alternative principle of ADC multi-channel transducer is presented.Information can be stored in magnetic memory dielectric (MMD) or semiconductor CMOS memory. The latter is commonly used in STMS due to complex control, large volume and low anti over-loading ability of MMD.Information memory subsystem in STMS is studied and designed. Moreover, information memory effective principles are presented, including: (1) Designing memory controller in term of sampling sequence and recording mode. (2) For address generator composed of serial counter, the propulsion of address is done by the rising edge of WR signal. (3) Reducing memory sub system transmission time as possible as one can or making the CMOS memory operation during transmission invalid.Based on study of the information compression principle, two information compressive storing algorithms are presented. One is the algorithm of finite span error limitation used in real time dynamic data collecting. The computer simulation shows that the algorithm is very effective in real-time data compression and storage (data compressive ratio up to 13.6 and memory space save up to 92%). The other is data model compressive algorithm based on dynamic data modeling. Error tolerence technology and redundancy design of STMS are also researched.The double-circle-recording principal and method for improving reliability in measuring transient signals is illustrated. The essential technologies of STMS, including three-micro technology (microvolume, micropower, micronoise), anti high over-loading technology and interface technology etc. are discussed in detail.DF-5A missile is a kind of middle/long distance strategy nuclear missile. It is a necessary task in missile system research to test and measure missile ball cartridge flight dynamic data. In the past, dynamic data of missile system are obtained by the wireless remote test system and magnetic tape recording device. Since plasma intermit section is “black area” of wireless system, missile dynamic data can’t be recorded by wireless remote test. Memory resending wireless remote test can be used to obtain “black area” data, however, only limited dynamic data beforethe missile head contact the ground can be obtained since missile head approach the ground quickly after leaving the “black area”. The other method is micro magnetic tape device on board, but the device operation is complex and the reliability is low.Under the instruction of principle mentioned above, dynamic STMS for a new strategy missile full ballistic trajectory is developed. Without the complex operation of traditional magnetic tape recording devices before blasting-off, the STMS can both inspect 60 channels dynamic data from distance far to 300m and complete inspection and store of missile head system data without dismounting the missile. The device can precisely do the testing and measuring task while the missile head reenter atmosphere plasma intermit section. It’s reliability is higher than magnetic recording devices and it is simpler than wireless remote test system. As substitution of onboard magnetic devices, the STMS is one of the most important measure means of missile head.In the paper the design theory, basic element, working principle, essential technology and reliability experiment of the missile data-recording device are illustrated in detail.The onboard flight test of missile data-recording device was carried out in July, 1995. During atmosphere-reentering of missile head in the experiment the wireless system was invalid, the magnetic-recording devices was broken down, only the STMS devices obtained 60 channel dynamic data during DF-5A reentering atmosphere and the result is highly-praised by the customer.存储测试系统的设计理论存储测试是指在对被测对象无影响或影响在允许范围的条件下, 在被测体内置入微型数据采集与存储测试仪, 现场实时完成信息的快速采集与记忆, 事后回收记录仪, 由计算机处理和再现测试信息的一种动态测试技术。
新能源汽车综合性能测试的关键技术新能源汽车的发展已经成为了现代社会的一种趋势，越来越多的人开始选择使用新能源汽车，以减少对环境的污染。
但是，针对新能源汽车的综合性能测试却是一个具有挑战性的任务。
本文将介绍一些关键的技术，用于测试新能源汽车的综合性能，并且帮助读者更好地理解新能源汽车的优势与不足。
1.能量存储系统测试技术新能源汽车的核心是其能量存储系统，包括电池组和超级电容器等。
为了确保新能源汽车的安全性和稳定性，测试能量存储系统的性能至关重要。
常见的测试技术包括电池循环寿命测试、温度特性测试、充放电效率测试等。
通过这些测试，可以评估能量存储系统的稳定性和性能表现。
2.动力系统测试技术动力系统是新能源汽车的驱动系统，包括电动机和电控系统等。
为了确保新能源汽车的动力性能和驾驶体验，测试动力系统的性能是必不可少的。
常见的测试技术包括马力输出测试、加速性能测试、能耗测试等。
通过这些测试，可以评估动力系统的效能和稳定性。
3.能耗与续航里程测试技术能耗和续航里程是新能源汽车用户最为关注的指标之一。
为了满足用户的需求并提供准确的数据，能耗与续航里程的测试必不可少。
常见的测试技术包括恒速行驶测试、实际道路驾驶测试、环境温度影响测试等。
通过这些测试，可以了解新能源汽车在不同条件下的能耗情况和续航里程表现。
4.安全性能测试技术安全性是每一位车主关心的问题，新能源汽车也不例外。
为了保障车辆的安全性能，在新能源汽车的测试中，安全性能的测试显得尤为重要。
常见的测试技术包括碰撞测试、电池过热保护测试、电池瞬时断路测试等。
通过这些测试，可以评估新能源汽车在意外情况下的安全性能。
5.环境适应性测试技术新能源汽车的使用环境多种多样，为了确保新能源汽车在各种复杂的环境条件下正常运行，环境适应性测试不可或缺。
常见的测试技术包括低温适应性测试、高温适应性测试、高原适应性测试等。
通过这些测试，可以评估新能源汽车在不同环境条件下的性能表现和适应能力。
sram测试函数-回复什么是SRAM？SRAM（Static Random Access Memory）即静态随机存取存储器，是一种常用于计算机的主存储器的存储单元，具有快速读写速度和低功耗的特点。
它是与DRAM（Dynamic Random Access Memory）不同的一种存储器技术，可以在不断电的情况下保持数据的稳定状态。
SRAM 通常由一组双稳态单元组成，通过电容来存储数据。
相对于DRAM，SRAM的访问速度更快，但是容量较小，成本较高。
SRAM测试函数的作用SRAM测试函数是用于检测SRAM存储单元是否正常工作的功能模块。
在集成电路制造过程中，SRAM存储单元可能会存在一些硬件缺陷，如电压不稳定、布线错误等，这些问题可能导致SRAM无法正常读写数据。
因此，为了确保SRAM能够正确地存储和检索数据，需要进行SRAM测试。
SRAM测试的方法SRAM测试可以通过模拟验证和外部检测两种方法进行。
在模拟验证中，首先通过电路仿真来验证SRAM存储单元的电气特性是否符合设计要求。
这个过程通常由电路设计师完成，利用各种模拟电路仿真工具对SRAM进行各种功能测试和电气特性测试。
这些测试包括读取、写入、保持时间、写入保护、写入引脚等，以确保SRAM能够在各种工作状态下正常工作。
外部检测是通过设计测试模块来进行的。
这个过程通常由测试工程师完成，他们会在SRAM芯片上设计一系列测试点，将SRAM接入测试设备进行信号测试。
这些测试设备可以通过模拟测试信号来模拟实际工作条件，对SRAM进行验证。
测试工程师会通过控制和检测引脚，对SRAM 进行读取、写入和保持时间测试，以确保SRAM能够正确地工作。
SRAM测试的流程SRAM测试涉及到一系列的测试步骤，如下所示：1. 初始化：在测试开始之前，需要对SRAM进行初始化设置，以确保它处于正确的状态。
2. 写入数据：向SRAM中写入一系列不同的数据模式，包括全0、全1、随机和自增等。
毕业设计说明书存储测试系统红外数据通信技术研究作者: 学号：学院(系):专业:指导教师：评阅人：20**年6月中北大学毕业设计（论文）任务书学院（系）：专业：学生姓名：学号：设计(论文)题目：存储测试系统红外数据通讯技术研究起迄日期: 20**年3月1日~ 20**年6月15日设计(论文)地点:指导教师:专业负责人:发任务书日期: 2005 年3月1 日毕业设计（论文）任务书1．毕业设计（论文）课题的任务和要求：1、学习相关原理知识；2、实验方案确定及实验3、查询10篇以上文献，其中至少1-2篇外文资料；2．毕业设计（论文）课题的具体工作内容（包括原始数据、技术要求、工作要求等）：1、学习相关原理知识；2、实验方案确定及实验3、完成论文撰写；4、外文资料翻译。
毕业设计（论文）任务书3．对毕业设计（论文）课题成果的要求〔包括毕业设计(论文)、图纸、实物样品等)：1、毕业论文一份；2、英文文献一份，相应的中文译文一份。
4．毕业设计（论文）课题工作进度计划：起迄日期工作内容2005年1月15日~3月31日 4月 1日~ 5月31日6月 1日~ 6月20日6月 21日~ 6月25日系统学习，查阅资料，作开题报告实验方案确定及实验撰写毕业论文论文答辩所在专业审查意见：负责人：年月日学院（系）意见：院（系）领导：年月日中北大学毕业设计(论文)开题报告学生姓名：学号：学院（系）：专业：设计(论文)题目：存储测试系统红外数据通信技术研究指导教师:20**年3月10日毕业设计（论文）开题报告1．结合毕业设计（论文）课题情况，根据所查阅的文献资料，撰写2000字左右的文献综述：文献综述存储测试系统红外数据通信技术主要是利用红外通信技术来发送接收。
红外通信技技术英文名称Infrared Communications Technique ，它利用红外技术实现两点间的近距离保密通信和信息转发。
它一般由红外发射和接收系统两部分组成。
