光学计

This paper analyses the measuring error and correcting method of the diopter of eyeglasses measured by dioptometer.

本文依据焦度计测量眼镜片顶焦度的光学原理，分析了测量误差来源并给出了校正方法。

The corneal suface of children with emmetropia has toric shape. There is a fine coincidence between two methods in central corneal power. The corneal surface of children with emmetropia has the feature of irregularity and non-spherical surface.

儿童正视眼角膜表面呈托力克光学面；角膜曲率计与角膜地形图仪对于中央区角膜曲率测量有很好的一致性；儿童正视眼角膜表面具有一定的不规则性(CIM约0.63)和非球面特性(SF约为0.27)。

This temperature measuring system has higher accuracy than the infra optic and pyrometer in the applied temperature range.

在微波烧结中的测温精度高于目前采用的光学高温计和红外光纤测温仪。

The Keck Interferometer will combine the light of the world's largest optical telescopes, extending our vision to new distances.

Keck干涉计将联合世界上最大的光学天文望远镜，以此扩充我们的视野到新的未知领域。

Observation of suspended sediment concentration over spring and neap tide was carried out using an optical backscatter sensor from 6 to 12 June, 2005 in Changjiang estuary.

利用光学后向散射浊度计OBS-3A，在长江河口南槽进行大小潮周期连续观测。

The scattering and absorption coefficient values measured by the D-OPC were compared with that measured by an Aethalometre and an Integrating Nephelometer.

与TSI公司黑炭仪和浊度计测量的吸收系数和散射系数对比表明，双散射角光学粒子计数器测量气溶胶折射率和谱分布结果合理，测量误差0%，可以满足同时测量气溶胶粒子谱分布和折射率的需要。

They begin by shaping the outer diameter of lens which takes only a few seconds.

这个叫前焦距计，用来测量镜片的光学精度的。

Three main functions: the use of far-infrared optical pyrometer measurements, can be manually programmed.

三、主要功能：使用远红外光学高温计测量，可手动程控。

This pyrometer consists of a rotary scanning optical system, a color pyrometer and a host computer.

该扫描式高温计分为旋转扫描式光学系统、比色高温计和上位机三个部分。

The thermometry principle and application of infrared thermometer are analyzed,and the comparison of the performance between pyrophotometer and infrared thermometer is made.

分析了红外测温仪的测温原理和应用，比较了光学高温计和红外测温仪的性能。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。