Double integral is a kind of common conversion technology, with high precision, strong anti-jamming capability, etc. 双积分是一种常用的转换技术,具有精度高,抗干扰能力强等优点。
In the simple and low-cost circuit, the voltage-frequency converters are the desirable devices for analog-to-digital conversion, precision frequency-to-votage conversion and linear frequency modulation. 电压/频率转换器在简单低廉电路中是数模转换、精密频率/电压转换及线性频率调制的理想器件。
The result of study reveal that the information of control system can be conserved by roughen the controlling quantity, the conversion from precision quantity set to smaller amount control rules can be achieved, the variable precision control can be realized by the means of equal relative error. 研究结果表明,对精确控制量的粗糙化,可以有效地保留控制系统的信息量,可以实现精确量集合向较少数量控制规则的转换,可以实现相对误差均衡的变精度控制策略。
The Uncertainties of System Error and Conversion of Parameters Estimation Precision 系统误差的不确定性与参数估计精度折合
A voltage pulse conversion circuit required for PWM is suggested, which has high conversion precision and linearity. 提出一个PWM所必需的电压-脉冲转换电路,它具有较高的转换精度和线性度。
Linear Conversion and Precision Analysis in Digitized Chart-Making 数字化仪制图中的线性变换与精度分析
Coordinate Conversion of Map Digitization, Precision and Correlation for Digitized Data 地图数字化的坐标转换及数据的精度与相关性
Fuzziness of Language and the Mutual Conversion of Fuzziness and Precision 语言的模糊性及其与精确的相互转化
An Universal Optically Isolated Data Conversion Card for PC With High Precision 一种与PC机接口的通用高精度光隔离数据转换卡
Experiment has proved that it is possible to improve A/ D conversion resolution and precision with the aid of a computer to a certain extent. 实践证明,在计算机的配合下,适当提高A/D转换的分辨率,并保证其精度是可能的。
This DAC use only one standard reference voltage, and its load does not change at any states of electronic analog switches, thus the conversion precision is raised. 该D/A转换器仅用一个标准参考电源,不论开关处在何种状态,电源的负载均不变,从而提高了D/A转换器的精度。
Study on the Method of Elongation Conversion for Stainless Steel and Precision Alloy 不锈钢、精密合金伸长率换算的研究
The experimental results show that the transforming method of digital to frequency conversion has high conversion precision and realizes the whole period frequency output. 实验表明,该数字&频率转换方法具有较高的转换精度,实现了输出频率的整周期刷新,不存在V/F转换电路的温漂等问题。
To eliminating the undesirable effects of the reference voltage fluctuation and temperature on the A/ D conversion precision, they were investigated. 为了消除参考电压波动对A/D转换结果的影响,研究了参考电压波动和温度效应对A/D转换器转换精度的影响机理及其校正方法。
The conversion of coordinate is analyzed, the cause of effecting coordinate conversion is discussed, the technical model of conversion between high and low precision is provided. 本文对坐标换算进行了分析,阐述了影响坐标换算的原因,给出了高、低精度换算的技术模型。
In design of the S/ D conversion board, by skillfully using hardware technology, the synchronization of conversed data was realized, and the sampling requirement is decreased, conversion precision is improved. 在S/D转换板中,采用硬件技术,巧妙地实现了转换数据的同步,降低了对采样速率的要求,提高了转换精度;
This source has some traits such as high conversion efficiency and high precision and siat llity of output frequency. 该电源具有转换效率高,输出频率的精度和稳定度高的特点。
The thought of balance between channels, through properly regulating the negative high voltage on the photomultiplier tube provided by every channel, pass the change of amplificatory multiple of the photoelectric conversion to make the precision of every channel be at the best state. 提出了通道平衡的思想,通过适当调节各通道施加在光电倍增管上的负高压,改变光电转换的放大倍数,使各通道的精密度都处于最佳状态。
The experimental result showed that this SVM Pinyin-to-Character conversion model achieved 1.2% higher precision than the trigram model, which adopted absolute smoothing algorithm, moreover, the SVM model with long distance features achieved 1.6% higher accuracy. 实验结果表明,基于SVM音字转换模型比传统采用绝对平滑算法的Trigram模型精度提高了1.2%;增加远距离特征的SVM模型精度提高1.6%。
Sharpening and geometric angles conversion of precision lathe tool 精密车刀的刃磨及角度换算
The analog input includes primary current, secondary current, primary voltage, secondary voltage, etc. Controller uses MAX 187 as the A/ D converter, which ensure the sampling speed and the conversion precision in the same time. 模拟量输入采集的信号有升压变压器一次电流、一次电压、二次电流、二次电压等,采用12位逐次比较式A/D转换器MAX187,兼顾采样速率和转换精度;
By means of voltage to frequency converter, the analog to digital signal conversion can get a wide dynamic rang in the conversion speed and conversion precision. 通过电压/频率变换的方式来实现A/D变换,使得输入/输出的转换速度和转换精度的调节具有较大的动态范围。
In the paper, the control scheme of eight-level drawbench frequency conversion timing system solves the stability precision and improves the economic benefit. 文章设计出的八级拉丝机交流变频调速系统的控制方案,解决了稳态精度的问题,提高了经济效益。
The conversion precision of the analog signals and the dynamic range of the AGC are increased by the over sample and digital filter technologies, and the convergence rate of the AGC is speeded up by variable step. 采用过采样和数字滤波技术,增加了模拟信号的转换位数,增大了AGC的动态范围;采用可变步长设计加快了AGC的收敛速度。
Enables the system through these two modules to have the high grade data-input, thus not only increased R-V conversion precision, but also provides in semantic for the following intelligent recognition and the three dimensional reconstruction the instruction. 通过这两个模块提高图纸扫描转换系统原输入数据的质量,从而提高了R&V转换精度,并为后续的智能识别与三维重建提供语义上的指导。
Chinese phonetic-to-word conversion sub-system is an important part of Chinese speech inputting system. The conversion speed and precision directly affect the performance of the whole system. 音字转换是汉字的语音输入系统的一个主要组成部分,音字转换的速度和准确性直接影响整个系统的性能。
Application of laser confocal measurement principle and laser confocal displacement sensor with micro rotating mirror with mirror into the measured pore size, internal measure and conversion precision shafting radial jumping error of measurement. 应用激光共焦测量原理并将激光共焦位移传感器与微小旋转反射镜联用,反射镜伸入被测孔径内部实现测量并转化了精密轴系主轴径跳误差对测量值的影响。
Featuring high conversion precision and low hardware overhead, delta-sigma data converters are appropriate for portable medical devices and high performance audio signal processing. Delta-Sigma数据转换器具有转换精度高、硬件开销低等特点,十分适用于便携式医疗设备以及高性能音频信号处理等领域。
In the part of hardware design, the circuit for zero voltage bias photoelectric conversion is designed, which realized the precision transformation of the scattering light signal to electric signal. 在硬件部分,设计了光伏模式下的光电转换电路,实现了散射光强信号到电信号的精密转换,并设计了数据处理及控制电路来实现对光电转换部分的控制以及与上位机的通讯。