Development of Absolute Displacement and Velocity Sensor for Vibration Control This paper proposes a new type of seismic system sensor based on the principle of servomechanism. The low natural frequency of the sensor is realized by us... N Higure,K Seto - 《Proceedings of the Symposium on the...
separated by a narrow gap (16).when the sensor (10) detects a zero angular velocity (omega), the ultrasonic wave is directed toward the opening (16) is, in principle, the two receivers in the same way, so that the differential signal of the two receivers (14, 15), which is ...
In principle, accurate analytical solutions of non-steady-state Navier–Stokes equations for the case of flow around an infinite porous plate with uniform suction/blowing can be obtained. In particular, under assumption of the permanent normal velocity υ(t), Turbatu and Srivastava [50] presented...
The structural diagram and principle of the force sensor are presented in Fig. 6(c), which is based on the positive effect of the piezoelectric materials and is applied to test vibration signals to enhance the robustness of the high-frequency band. It can also be integrated into an ...
The mock-up of 邪 fiber-optic Doppler blood flow-velocity sensor has been made and described. The principle of its operation is based on the recording of t... VI Krasovskii,IN Feofanov,PI Ivashkin,... - 《St Petersburg Polytechnic University Journal Physics & Mathematics》 被引量: 0发表...
The principle is to measure the phase changes, as interference fringe-shifts, caused by inserting a specimen in a liquid whose acoustic velocity... T Sannomiya,N Chubachi - 《Journal of the Acoustical Society of Japan》 被引量: 1发表: 1981年 Method for Acoustic Characterization of Materials ...
Laser-based speed sensors measure by triangulation or the time-of-flight measurement principle. How to choose Be sure to determine the maximum operating speed when selecting a sensor. The maximum frequency in Hz will indicate the resolution of the sensor and its maximum measurement speed. Advantag...
Under a completely different principle, a technique is to mount markers on the circumference of a rotor and count the number passing a stationary point in a given time, or alternatively, the time lapse between successive passages, which can be detected optically, magnetically or electrostatically. ...
2. The principle of the model 2.1. The model idea The surfaces of the bullet jacket and the inner surface of the barrel are modeled with so-called asperities, spatially narrowly defined cylindrically symmetrical bodies with dimensions in the order of a few tenths of a micrometer. If such an...
This report describes the development of a technique for measuring flow velocity, which uses the principle of a deflecting vane and can be interrogated after the passage of a flood event. The instrument is principally designed for use ... PG Hollinrake 被引量: 0发表: 1990年 加载更多研究点推...