探讨指数波响应应用于冲击测量系统的问题。
Application of exponential wave response to impulse measuring systems is discussed.
根据指数波响应,可以计算数字仪的冲击响应和冲击测量误差。
According to its exponential wave responses, the impulse measurement errors of a digitizer can be calculated.
提出了一种理论计算的新方法,它可根据数字记录仪的指数波响应计算冲击电压的数字测量误差。
This paper presents a new theoretical calculation method which can be used to calculate errors in digital measurement of impulses based upon the exponential wave response of the digital recorder.
计算的准确度取决于指数波发生器的准确度,而后者和电阻、电容的准确度和回路的杂散电感有关。
The calculation accuracy depends on the accuracy of the exponential wave generator, which is associated with the accuracies of resistor and capacitor and the stray inductance in the generator circuit.
根据指数波试验和计算,文中给出了XZF-900精密电阻分压器和ZRF-1200低阻尼电容分压器的冲击测量误差。
The impulse measurement errors of the XZF—900 precision resistor divider and the ZRF—1200 low damped capacitor divider are given from exponential wave tests and calculations.
此信号发生器可以方便输出正弦波、方波和指数波等各种不同波形的信号,输出信号的频率和幅值等参数可通过前面板控制。
Different signals such as sine waveform, step waveform and exponential waveform are available. Its frequency and phase can be adjusted precisely through the front panel.
去年的这一天,上海证券市场的单日跌幅达到了9%,这一冲击波引发了全球金融市场的震荡,美国的道琼斯工业指数也应声而落,下跌了几个百分点。
Exactly a year ago a 9% tumble of Shanghai’s stockmarket sent a shockwave around the world that knocked a couple of percentage points off the Dow Jones Industrial Average in a matter of seconds.
但道琼斯工业平均指数在7月23日时已重回9000点,伦敦富时100指数至7月27日之时,已连续11个交易日上涨,是史上最强劲的一波行情。
But the Dow Jones Industrial Average climbed back above the 9, 000 level on July 23rd and London's FTSE 100 index rose for 11 trading days in a row to July 27th, equalling its best-ever run.
但道琼斯工业平均指数在7月23日时已重回9000点,伦敦富时100指数至7月27日之时,已连续11个交易日上涨,是史上最强劲的一波行情。
But the Dow Jones Industrial Average climbed back above the 9,000 level on July 23rd and London's FTSE 100 index rose for 11 trading days in a row to July 27th, equalling its best-ever run.
双波百叶隔断的第一个性能舒适度,我们用舒适度指数来进行总结。
The first performance of double wave shutter partition comfort, we use comfort index to sum up.
美国铝业公司(Alcoa Inc .)周一将公布第一财季收益报告,打开这一波收益报告的闸门。美国铝业是首家公布业绩的道琼斯工业平均指数成份股公司。
The floodgates for first-quarter-profit reports open in earnest Monday, when Alcoa Inc. releases its results, the first member of the Dow Jones Industrial Average to do so.
1975年的一波反弹使平均指数上升到852点,但是,在随后的6年中只净增了23点。
A rally in 1975 took the average to 852, but it then gained only a net 23 points over the next six years.
滑行纵波系由纵波声束、负指数滑行集散波和正指数滑行集散波三种成份所组成。
The gliding longitudinal wave contains three parts, longitudinal wave beam, negative exponential gliding ivro-tational wave and positive exponential gliding irrotational wave.
利用能量法证明了具耗散边界条件和时间依赖系数的非线性波方程的能量指数衰减性。
By using the perturbed-energy method, the exponential decay of the solution is obtained for the nonlinear wave equations with time-dependent coefficients and dissipative boundary condition.
目的探讨血尿酸(SUA)、脉搏波传导速度(PWV)和踝臂指数(abi)与冠心病的关系。
Objective To study, the relationship between serum uric acid (SUA), pulse wave velocity (PWV), ankle brachial index (ABI) and coronary heart disease (CHD).
利用小波变换系数的模值与信号奇异性指数之间的关系,从调频信号中提取出调制信号的频率。
Frequency of modulated signals is extracted from frequency-modulated signals by using the relationship between the modulus of wavelet transform coefficient and the singular exponent.
用一维FDTD方法模拟了双指数脉冲在单层岩土介质中的衰减,并对电磁波在岩土层中的穿透进行了详细的讨论。
By using one-dimension FDTD method we simulates the decay of double exponential pulse through the soil media, and its refractive time-domain wave shape is discussed in detail.
本文利用小波变换系数的模的平方值与信号奇异性指数之间的关系,从超声回波信号中提取出了胎儿的心率。
The fetal heart rate can be extracted from the returning signal of ultrasound by way of the connection between the modulus of the wavelet transform coefficient and the singular exponent.
基于随机分形理论,采用分数布朗运动模型,应用R/S分析技术和基于小波变换的谱参数估计方法计算地震道信号的赫斯特指数。
The thesis based on random fractal theory, utilizing fractional Brownian motion model, using R/S analysis technique and wavelet transform method to estimate Hurst exponent which dep.
下行波的衰减规律符合指数衰减,但上升波的衰减并不符合这一规律。
Downward wave amplitude decay in negative exponential function, but the upward wave amplitude is not the case.
通过基于子波的分析方法,对压力数据进行了分析,获得了基于子波系数的频带能量谱和冲击波强度指数。
Pressure data were analyzed by wavelet transform in wavelet domain. Frequency band energy spectrum and intensity index of ISW based on wavelet coefficient were obtained.
文中对奇异性指数的求解问题进行了较详细的讨论和研究,同时对不同小波基下的信号奇异性检测情况进行了分析和比较。
The thesis has discussed the calculating of the Lipschitz exponent, and analysised and compared the condition between wavelet bases and singularity detection of signal.
根据辐射在介质中的传输是按指数规律衰减的波盖耳定律和实际测试情况,提出了规范的消光系数测试步骤和计算方法。
In terms of the transmission of the radiation at the mediums, which following the Bougver laws of the index rules attenuation and the realistic measure…
驱动器具有恒流斩波、指数升降频和正弦波等幅均匀细分的功能。
Meanwhile, the driver had the functions of constant current chopper, index movements frequency and sine wave equal-breadth even subdivision.
二波耦合光路测试晶体的指数增益系数。
The two wave coupled path was used to measure the exponential gain coefficient of these samples.
给出了等离子体电子密度线性分布和指数分布时,雷达电磁波的频率、电子碰撞频率、等离子体密度对电磁波衰减的影响。
For different plasma-density profiles, the effects of the frequency of EM wave, collisional frequency and plasma density on the attenuation of electromagnetic wave were discussed.
实验表明,小波滤波法能提高小故障的检测能力,而且与指数权重滑动平均滤波法相比更具有故障检测的及时性。
Experiments show that wavelet filtering can enhance the small fault detection capacity and detect more timely compared with exponentially weighted moving average (EWMA) filter.
实验表明,小波滤波法能提高小故障的检测能力,而且与指数权重滑动平均滤波法相比更具有故障检测的及时性。
Experiments show that wavelet filtering can enhance the small fault detection capacity and detect more timely compared with exponentially weighted moving average (EWMA) filter.
应用推荐