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rapid measurement    
相关语句
  快速测定
    The Rapid Measurement of Preferred Orientation in Metallic Polycrystals
    金属多晶材料择优取向的快速测定
短句来源
  快速测量
    CROSS POLARIZATION-A RAPID MEASUREMENT FOR ~7Li NMR LINE SHAPR OF SINGLE CRYSTAL α-LiIO_3
    交叉极化—α-LiIO_3单晶~7Li NMR线形的一种快速测量方法(英文)
短句来源
    Rapid Measurement Method of Absolute Radiometer by Using Forecast Radiation in Electrically Heating Compensation
    绝对辐射计预测辐射电补偿的快速测量方法
短句来源
  快速测量
    CROSS POLARIZATION-A RAPID MEASUREMENT FOR ~7Li NMR LINE SHAPR OF SINGLE CRYSTAL α-LiIO_3
    交叉极化—α-LiIO_3单晶~7Li NMR线形的一种快速测量方法(英文)
短句来源
    Rapid Measurement Method of Absolute Radiometer by Using Forecast Radiation in Electrically Heating Compensation
    绝对辐射计预测辐射电补偿的快速测量方法
短句来源
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  rapid measurement
A relatively simple indentation technique for the rapid measurement of fracture surface energy, Γ, of small samples is described.
      
A method for rapid measurement of HeLa cell destruction by cytopathic poliovirus based upon alterations of the rate of oxygen uptake of infected cell populations is presented.
      
Rapid measurement of young's modulus on short strips of amorphous metals using the piezoelectric ultrasonic composite oscillator
      
Systems for rapid measurement, data analysis and storage designed for the experimental work are presented.
      
Densitoviscometer for rapid measurement of the density and viscosity of melts of salts and alkali
      
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In this paper, we give the distribution of temperature field and pulse photoacotistic pressure in liquid generated by pulsed laser. The effect of pulse duration and laser beam dimension on the pressure signal is discussed. The experimental results obtained by the Gauss laser beam deflection technique well conform with the theory. This technique provides a novel optical method for the conta-ctless and rapid measurement of thermodynamic parameters.

本文导出了TEM_(00)脉冲激光引起的液体中温度场的分布和光声脉冲压力的表达式.讨论了激光脉冲持续时间,激光束宽度对压力信号的影响.采用高斯光束光斑偏折技术所得实验结果与理论很好地符合.为流体热力学参量非接触实时检测提供了一种新颖的光学方法.

An optical detection technique for rapid measurement of surface roughness by using a laser beam is proposed.When a laser beam illuminate on the surface of a aluminum specimen,the space distribution of the reflected light intensity will be the function of the roughness of the surface of the specimen.And the intensity distribution can be measured with a plasmacoupled device (PCD) and approximately expressed with Gaussian function.The broadness of the intensity distribution curve can be evaluated with standard deviation called Gaussian curve parameter (GCP).We find a experimental equation Ra=0.088GCP+0.032 to show the relationship between centerline average roughness Ra and GCP in range of 0.1~0.5μm....

An optical detection technique for rapid measurement of surface roughness by using a laser beam is proposed.When a laser beam illuminate on the surface of a aluminum specimen,the space distribution of the reflected light intensity will be the function of the roughness of the surface of the specimen.And the intensity distribution can be measured with a plasmacoupled device (PCD) and approximately expressed with Gaussian function.The broadness of the intensity distribution curve can be evaluated with standard deviation called Gaussian curve parameter (GCP).We find a experimental equation Ra=0.088GCP+0.032 to show the relationship between centerline average roughness Ra and GCP in range of 0.1~0.5μm.

提出一种使用激光束快速测量表面粗糙度的无触点光学方法。一束照射在样品表面的激光束随着表面粗糙度的增大反射光的密度分布将被扩展,可用PCD测出从铝制样品表面反射光的密度分布。被反射光的密度曲线可通过高斯函数近似地求出。密度分布曲线的宽度由高斯曲线系数的标准差计算出来,此标准差近似等于密度曲线的高斯函数的标准差,密度曲线的中线平均粗糙度随着高斯曲线系数的增加而增加。粗糙度Ra在01~05μm的范围内,可利用实验公式Ra=0.088GCP+0.032通过测量GCP得到。

Two phases of radiation reception and electrical calibration are needed for absolute radiometer to measure radiation. Because absolute radiometer is thermoelectricity detector, at the two phase temperature response of the cavity could be compared after the receive cavity of the absolute radiometer reaches balance, and then the radiation value is electrically calibrated. According to the law that the temperature of the reception cavity rises up exponentially when radiated or heated up, dynamic forecast of the...

Two phases of radiation reception and electrical calibration are needed for absolute radiometer to measure radiation. Because absolute radiometer is thermoelectricity detector, at the two phase temperature response of the cavity could be compared after the receive cavity of the absolute radiometer reaches balance, and then the radiation value is electrically calibrated. According to the law that the temperature of the reception cavity rises up exponentially when radiated or heated up, dynamic forecast of the temperature is adopted and then it gets compensation by heating up with electricity. A new method of measurement is worked out under the state that the temperature of the cavity maintains invariable both at the phases of observation and calibration. The rapid measurement method was used on two Solar Irradiance Absolute Radiometers (SIARs) named SIAR-2a and SIAR-2b constructed for Physikalisch-Meteorologisches Observatorium Davos/World Radiometric Center (PMOD/WRC). Comparison experiments were carried at WRC for a year and a half. The sun was observed together with the instruments of WSG more than 10000 times at the same time. The data obtained from PMOD/WRC shows that its absolute precision reaches 0.08%. The precision of the new method is same with the old one (the balance is slower and the measurement time is longer) but the measurement cycle is shorter.

绝对辐射计测量光辐射需要接收辐射和电定标两个阶段,这两个阶段都要使辐射计的接收腔达到热平衡才能比较它们的腔温响应,电定标其辐射量值。根据绝对辐射计接收腔在光入射(或电加热)时腔温升响应的指数变化规律,研究出在辐射入射腔之初就动态预测其功率,电加热补偿,使腔的温度在接收辐射和电定标阶段维持恒定的状态下,快速达到平衡进行测量的新方法。为世界辐射中心(PMOD/WRC)研制的两台太阳辐照绝对辐射计SIAR2a和SIAR2b采用了这种快速测量的方法。并在世界辐射中心进行一年半10000多次同世界标准(辐射计)组(WSG)一起同时观测太阳辐照度的比对实验,结果表明其绝对辐射精度达到了0.08%,既保持了原有测量方法(慢速热平衡、测量时间长)的精度,又缩短了秒测量时间。

 
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