查询词典 turbidimeter

Choose the 890nm infrared LED as the light source after compared the capabilities of incandescent lamp/tungstic lamp and LED/LD and also think about the selective absorbability of water; it has strong points such as constant light intensity,long life, narrow light spectrum,etc, and use the infrared light with 890nm wavelength to decrease the influence of optical-absorption matters.Choose the photosensitive diode which suitable to the LED which we choosed after compare the capabilities of light sensitive resistor, photocell, photosensitive diode and phototriode. Both of these make up the photoelectric system of turbidimeter.

通过比较白炽灯／钨灯和发光二极管／激光二极管的各项性能指标，考虑到水对光线具有选择性吸收作用，选择890nm的红外发光二极管作为浊度仪的发光器件，其有发光光强稳定、寿命长、发光光谱窄等优点，且用波长大于800nm的红外光进行测量可以大大减小水中光吸收物质的影响；通过对光敏电阻、光电池、光敏二极管和光敏三极管等光敏器件的各项性能的分析与比较，选择响应时间短、输出特性线性度好的光敏二极管作为光接收器件，并与红外发光二极管相配套，构成浊度仪工作的重要系统——光电系统。

Introduce the principle of light absorption and scattering, which is the theoretical basis of turbidimeter works and understand the basis of photology further.

本文介绍了光的吸收定理和散射定理——这是浊度仪之所以能够分析并检测浊度的理论基础，通过分析进一步加深对浊度仪工作原理的了解。

Consequently, the reseach and design of turbidimeter is very important.

因此，浊度仪的研制将具有非常重要的意义。

How to improve the measurement accuracy is one of the main researching objects of turbidimeter.

如何提高测量浊度的精度是国内外一直在研究的问题之一。

At last, we have done turbidimeter lab experiments.

最后，进行了浊度仪的实验室验证。

The efforts to improve the accuracy and stability during the design of the scatter light turbidimeter are described in this paper.

文章介绍了作者在散射式浊度测量仪设计过程中，为提高浊度的测量精度和稳定性所做的工作。

In the end, we verified the practicality and reliablility of the turbidimeter by experiments. The f...

最后，通过实验验证了本浊度仪的实用性、可靠性，以及所使用的研究方法及软硬件设计方案的可行性。

The result of tests proves that the turbidimeter we design can measure the turbidity of water.

通过大量的实验表明散射光式浊度仪可以完成对水浑浊度的测量任务。

As the research of turbidimeter begins too late in our country, comparing with the import turbidimeters, the domestic products is under-developed in performance and stability, but the import turbidimeter is complex to operate and much more expensive, so it can not used popularly.

由于起步较晚，国产浊度仪无论在性能上、稳定性上都与进口浊度仪有着明显的差距，但是进口浊度仪结构复杂、价格昂贵，不适合推广。

This paper introduces the principle and unit of measurement of turbidimeter,a kind of instrument used to measure the content of undissolved particulate matter suspending in water or other transparent liquid.In this article the measurement uncertainty of relative indication error in the method recommended in verification regulation of turbidimeter(JJG880-1994)for turbidimeteris estimated.The sources of standard uncertainty component are analyzed in detail.The combined standard uncertainty and effective degree of freedom are calculated.

本文介绍了用于测量悬浮于水中的不溶性颗粒物质含量的仪器浊度计的测量原理和计量单位，并依据计量检定规程（JJG 880-1994）中检定示值相对误差的方法，对示值相对误差的测量结果进行不确定度评定，具体分析了各个不确定度分量的产生，并合成标准不确定度及有效自由度。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。