Adding current and voltage sourcing capabilities to a measuring instrument provides an extra degree of versatility for many low level measurement applications.
在测量仪器上附加电流和电压源功能，为各种低电平测量应用提供了额外的灵活性。
Such as water, liquid ammonia, naphtha and liquefied petroleum gas, such as the medium level measurement.
如水、液氨、轻油、液化气等介质的液位测量。
A method about acquisition and processing of ultrasonic echo signal in liquid level measurement is introduced.
介绍了一种在液位测量中超声回波信号的采集与处理方法。
This paper analyzed some method of liquid level measurement and introduced a new method to measure the liquid level.
本文通过对几种液位检测法的分析，重点介绍一种实用的液位检测法。
This method can be promoted conveniently to other level measurement and velocity measurement of the gas or the liquid.
此方法可方便地推广到其他物位测量及气体、液体的流速测量中。
Technical measures and operation instruction relating to the improvement of level measurement and control were also given.
并提出了改进液位测量与控制的技术措施和操作指导。
The measuring method proposed in this paper provides an effective method for the liquid level measurement of the sealed contai…
该方法为密封容器的液位测量提供了一种有效的检测手段。
The measuring method proposed in this paper provides an effective method for the liquid level measurement of the sealed container.
该方法为密封容器的液位测量提供了一种有效的检测手段。
This paper introduces a new type measuring head for operating the liquid level measurement in a gauge glass with lineal array CCD.
本文介绍一种使用线阵CCD进行玻璃管内液位测量的光电测量头。
A wide FOV low-light-level measurement instrument is described, which is used to acquire and measure a small space target at night.
介绍一种用于夜间对空间弱小目标进行捕获、测量的微光大视场测量仪。
The product is suitable for level measurement of vaporizable liquid in pressure vessels especially liquefied gas in underground tank.
该产品适用于压力容器中易汽化介质的液体测量，尤其适合埋地罐液化气介质的液位测量。
It introduces the design of a liquid level measurement system based on the C51 single chip microcontroller and optical fiber technique.
介绍了一种基于C51单片机和光纤技术的液位测量仪的系统设计。
The design proposal has certain universality, which could apply to relative liquid level measurement system or data acquisition system.
该设计方案具有一定的通用性，能适用相关的液位测量系统或数据采集系统。
Introduced the water level measurement principle of the intelligent electrical contacted water level indicator and construction of the system.
介绍了智能电接点水位计的水位测量原理及其系统的基本结构。
The invention has the advantages of low manufacturing cost, rapid water lever dynamic response at high temperature, and lower water level measurement error.
本发明制造成本低，高温时水位动态响应迅速，水位测 量误差小。
According to error analysis of sound level measurement and practical case some objection was raised to levy standard on Noise Exceeding Environment standard.
依据声级测量的误差分析，结合实例，对国家现行《超标环境噪声排污费征收标准》提出异议。
On the basis of practicing, the operational principle and features of dual condensation chamber used for drum water level measurement are presented in detail.
以实践为基础，对测量汽包水位中使用的双室平衡容器的工作原理与特性作了详细介绍。
This paper introduces a multi place liquid level measurement system, which employed eight linear array CCD for real time image capture of each liquid dividing line.
本文提出一套多界面位置实时监控系统。该系统采用八个线阵CCD像感器分别接收每个界面的光学图像。
That properties of noncontacted measured liquid made liquid level measurement by lamb wave can be used for accurate measurement of liquid level in sealed container.
利用兰姆波进行液位测量，有不接触待测液体的特点，可用于密封容器内液位的准确测量。
Although many kinds of measuring instruments are being used in tank level measurement, the high accurate but low price instruments are still urgently needed in China.
目前国内在用液位测量仪表虽然种类繁多，但缺乏精度高而价格低的液位测量仪表。
In this paper, the liquid level measurement of sealed air-condition compressor is introduced and an ultrasonic testing system based on virtual instrument is developed.
文章介绍了对封闭式空调压缩机的液位测量，研发了基于虚拟仪器技术的超声波检测系统。
Capacitive system for liquid level measurement can measure the liquid level according to the principle which capacitance value is changed with the dielectric constant.
电容式液位测量系统是基于改变介电常数时，电容器的电容量变化的原理来测量液位的。
The control and instrumentation systems, including: control box, alarm monitoring system, traction chains, tank level measurement system, electrical test bench and so on.
控制和仪表系统，包括：控制箱，警报监测系统，牵引链，油罐液位测量系统，电气测试台等。
Oblique well type laser water level measurement equipment provides a new method of data acquisition and transmission for water level measurement under special conditions.
斜井式激光水位测量装置，为特殊条件下水位测量提供一种新的采集传输手段。
The traditional liquid level measurement under dynamic states and complicated surroundings have potential defects that are low resolution, low precision and big dead zone.
传统的液位测量方式在动态复杂环境下，都存在分辨率低、精度弱、测量盲区大等缺陷。
The principle of level measurement radar and the FFT/CZT arithmetic used to improve radar measurement precision in detail are introduced, and realization plan based on DSP is given.
文中重点介绍了液位监测雷达的测距原理，采用FFT/CZT算法提高雷达测距精度并给出基于DSP实现方案。
The principle of level measurement radar and the FFT/CZT arithmetic used to improve radar measurement precision in detail are introduced, and realization plan based on DSP is given.
文中重点介绍了液位监测雷达的测距原理，采用FFT/CZT算法提高雷达测距精度并给出基于DSP实现方案。
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