Simulations and experiment results show that this system is provided with high speed and satisfactory precision besides getting rid of both torque and speed sensors . therefore it is particularly fit for those occasions for which torque and speed sensors are difficult to amount 仿真和试验结果表明，本系统不仅有较快的测试速度，而且具有相当的精度，再加上其无需转矩转速传感器的优点，特别适用于一些不适合安装转矩转速等非电量传感器和需要进行快速测试的场合。
Taking dc motor test as an example , a creative idea of applications of some advanced signal processing tools , such as time - frequency analysis , wavelet , and instantaneous frequency ( if ) evaluation , in motor testing field is presented . the paper systematically summarizes basic theories of time - frequency analysis and wavelet transform based on which an in - depth research of effective if evaluation based on wavelet ridge and wavelet curve is carried out . in the end a fast t - n characteristic testing system with neither torque nor speed sensor is successfully developed 本论文主要关注小波分析在电机性能自动测试系统中的应用，针对传统电机测试系统以及信号处理技术在电机测试领域中应用的不足，以直流电机为例，提出了将时频分析、小波包变换以及基于小波脊的瞬时频率提取方法应用到电机测试领域的新思路；较系统地总结了时频分析和小波变换的基本理论，深入探讨了基于小波脊线和小波曲线的瞬时频率提取，并成功开发了基于正交小波包分析和基于小波脊线的瞬时频率提取的无转矩转速传感器的直流电机快速测试系统。
In the hardware level , the system acquires motor armature current by wb current sensor and pci - 1202 card . hence wb current sensor , peripheral driving circuits , pc - 1202 card and its interfaces are respectively discussed in detail in the paper . as a perfect example of the new pattern testing system previously mentioned , the system has distinct advantages because it fully exploits abundant resources and rapid speed of pcs 论文中介绍了一种无转矩转速传感器直流电机快速测试系统，在硬件上，本系统由wb电流传感器与pci - 1202数据采集卡共同完成电枢电流数据采集功能，论文详细讨论了wb电流传感器，外围驱动电路， pci - 1202数据采集卡及其与pc机的接口及其编程等等与软硬件有关的问题。
The alternating resistance method was adopted to test the moisture content of the fiber , the bathtub effect on the alternating conductivity , which insisted in the fiber , was verified , the sensitive frequency band of measuring the moisture content of the fiber was acquired , and the dielectric polarization theory was applied , the organism of the bathtub effect of the alternating conductivity of the fiber was gained 采用交流阻抗法测量纤维水分，验证了纤维存在交流导电浴盆效应现象，找出了纤维水分测量的敏感频带，并运用介质极化理论，说明了纤维交流导电浴盆效应的机理。第三章新型纤维水分快速测试仪设计：运用纤维交流阻抗特性，设计了新型纤维水分快速测试仪。
In the milk , there are two kinds of large scattering molecules : fat and protein . it is almost impossible to find a kind of dissolution liquor which can dissolve fat quickly , only protein existing . if eliminating fat is slow , it deviates our destination of designing the quickly measuring instrument 因为牛奶中含有脂肪和蛋白质两种散射大分子；而且由于无法先用一种快速溶解液将脂肪快速溶解掉而只剩下蛋白质，如果用一种较慢的方法除去脂肪，就脱离了我们设计快速测试仪的初衷。
First , simple rapid versions of these tests need to be developed that can be used at typical health posts by personnel with minimal training . second , because it is not going to be feasible to put cd4 and viral load tests in every local clinic , techniques need to be developed to allow samples to be safely transported to laboratories in district or national hospitals and then have results communicated back 一、研究出简单的快速测试法，使在诊所工作、接受过最基本训练的医护人员也懂得使用；二、由于难以为每间诊所添置上述仪器，必须研究出可行的技术，使血液样本能安全运送到地区或国家级医院的实验室进行化验，再将结果通知有关诊所。
During the first visit to be conducted five days before selling the marketable batch , afcd staff will randomly collect swabs from 60 chickens for rapid rna testing in addition to the regular headcount of chickens to check for losses , close visual inspection for sick or dead chickens , and blood testing 14 birds . an additional inspection will be conducted within two days of the farms selling the marketable batch 在每批适龄鸡只应市前五天，渔护署职员会进行第一次检验，除例行点算鸡只数目以确定鸡只没有减少，仔细检查是否有生病或死亡鸡只，以及抽选十四只鸡进行血液测试外，他们更会随机抽取六十只鸡的粪便样本，进行基因快速测试。
