This paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy. The option principle of ultrasonic sensor is presented.
以时差法为例，分析了超声波探头中超声射线入射角及振荡频率对测量精度的影响，给出了探头的选择原则。
The circuit and method for obtaining equal measuring accuracy and response speed in a wider frequency signal range are discussed in this paper.
本文探求在较大的被测频率信号范围内获得相同的测量精度与响应速度的测量方法及电路。
The paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy and the choose principle of ultrasonic sensor is presented.
文中以时差法为例，分析了超声波换能器中超声射线入射角及振荡频率对测量精度的影响，给出了换能器的选择原则。
In order to increase the accuracy in measuring transient pressure by a pressure transducer, it is necessary to improve its frequency response property.
为了提高瞬态压力测量的精度，必须设法提高传感器的频响特性。
The measuring frequency of salinity during its microwave measurement and the polarization state and the effect of incidence Angle to the accuracy of measuring have been analyzed.
分析了微波辐射计测盐时的测量频率、极化状态及入射角对测量精度的影响。
The principle of equivalent accuracy measuring frequency, implement circuit and part of testing programs are introduced.
文章介绍了等精度测频原理，实现电路及部分测试程序流程。
The cymometer makes use of equal-accuracy design that can overcome the disadvantage of traditional measuring principle, which precision declines as measured signal frequency does.
该频率计利用等精度的设计方法，克服了基于传统测频原理的频率计的测量精度随被测信号频率的下降而降低的缺点。
The measuring accuracy has been improved due to adopting Inverse Fourier Transform based on adding window in frequency domain.
同时为了减少时域响应的泄漏，进一步提高测量精度，采用了基于频域加窗的逆傅里叶变换；
In chapter 2, the theories and technologies of suppressing glint and improving Angle measuring accuracy for frequency agility radar are studied.
第二章主要研究捷变频雷达中抑制角闪烁、改善测角精度的理论方法。
According to the fundamental principle of correlation function, the effect of measuring accuracy resulting from frequency deviation is analyzed in this paper.
从相关函数的基本原理出发，分析了频率偏移对信号测量准确度的影响。
The digital frequency meter to achieve the desired requirements of the variable-range measurement, measuring range 0.1Hz-9999MHz, accuracy up to 0.1Hz.
该数字频率计达到预期要求，实现了可变量程测量，测量范围0.1Hz—9999MHz，精度可达0。
Signal sources with high accuracy and operational frequency are used in the fields of research and application of modern electronics measuring technology.
在现代电子测量技术的研究及应用领域中，常常需要高精度且频率可调的信号源。
Signal sources with high accuracy and operational frequency are used in the fields of research and application of modern electronics measuring technology.
在现代电子测量技术的研究及应用领域中，常常需要高精度且频率可调的信号源。
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