1) open-close speed measurement
分-合速度测量
2) velocity measurement
速度测量
1.
Realization of depth measurement and velocity measurement with high precision.;
高精度的深度和速度测量方法的实现
2.
Control and velocity measurement of multi-stage reconnection gun;
多级磁力线重接炮的控制与速度测量
3.
The principles and experimental methods of both velocity measurements including the electromagnetic induction,the rotary 2-disc,the Laser-2-Focus Velocimeter,the Laser-Doppler Velocimeter(LDV),the Particle Image Velocimeter(PIV),the impact force measurement and the jet structure measurements including the Scanning-X-Ray Densitometry,the flow separation technique were summarized.
对磨料射流两相速度测量和射流结构测量两方面的进展进行了综述。
3) speed measurement
速度测量
1.
Simplified computational method of high-accuracy speed measurement based on low resolution encoder;
基于低分辨力编码器的高精度速度测量简化算法
2.
Study on digital speed measurement methods for servo control system of swivel table;
转台伺服控制系统中数字化速度测量方法的研究
3.
This system band together tramcar speed measurement, over-speed alarm and the conservation, display and management of record data.
矿车速度测量记录系统的研制，可以有效地解决井下矿车速度难以监控的问题。
4) speed measuring
速度测量
1.
A speed measuring system of moving mirror for Fourier transform spectrometer(FTS) based on FPGA is introduced.
介绍了一种基于FPGA的傅里叶变换光谱仪动镜速度测量系统。
2.
Secondly , the article also introduces the speed measuring circuit based on 555 and the application of it on the diesel.
介绍了速度(频率)/电压转换芯片LM2907/LM2917的工作原理、技术参数和应用电路,并介绍了基于555的速度测量电路和在柴油机测速上的应用。
5) measuring race
测量速度
1.
A multi - chamnel A/D Transfer circuit controlled by a single - chip microcompute was developed, And its characteristics and reacizing method were described in this paper, also, its measuring accuracy and measuring race were cussed.
介绍了一种基于单片机控制的实用多路 Ａ／Ｄ转换电路的特点及实现方法，从测量精度和测量速度二个方面进行了探讨。
6) velocity component
速度分量
1.
Using the five-hole probe to measure the flow field at the inlet and outlet of guide vane through the mea-suring holes,the velocity components curves were given.
对设计模型轴流泵在无导叶和有导叶时的外特性进行测试,在导叶进出口位置开设测孔,并运用球形五孔探针对导叶进出口流场进行测量,得到绝对速度的周向、轴向及径向速度分量的分布曲线。
补充资料：天体视向速度测量
| 天体视向速度测量 determination of astronomical radial velocity 天体相对于日心处的观测者的空间速度沿着视线方向的分量称为视向速度。按照多普勒原理，运动的光源发出的某一谱线的波长λ不同于光源静止时发出的同一谱线的波长λ0，其差值Δλ＝λ－λ0取决于光源相对于观测者的视向速度v。两者的关系为：v＝cΔλ／λ0，式中c为光速。如果λ＞λ0，运动光源发出的光向红端移动，视向速度为正，光源远离观测者 ；反之，如果λ＜λ0，运动光源发出的光向紫端移动，视向速度为负，光源接近观测者。只要拍得天体的光谱，测出谱线的波长，就可标出天体的视向速度。由于观测者实际上是在地面上进行观测，而非日心，因此，实际测量得到的视向速度值还需做一些改正，消除地球绕日公转、地球绕地月系中心的旋转和地球自转的影响。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条