Rail Displacement Detection of Opened Rail Displacement Sensor That Implements the Electric Field Shield

Measuring electric field induced subpicometer displacement of step edge ions.

We provide unambiguous evidence that the applied electrostatic field displaces step atoms of ionic crystal surfaces by subpicometers in different directions via the measurement of the lateral force interactions by bimodal dynamic force microscopy combined with multiscale theoretical simulations. Such a small imbalance in the electrostatic interaction of the shifted anion-cation ions leads to an...

SINGLE - SUPPLY AMPLIFIERS Rail - to - Rail Input Stages Rail - to - Rail Output Stages Single - Supply Instrumentation

Displacement Parameter Inversion for a Novel Electromagnetic Underground Displacement Sensor

Underground displacement monitoring is an effective method to explore deep into rock and soil masses for execution of subsurface displacement measurements. It is not only an important means of geological hazards prediction and forecasting, but also a forefront, hot and sophisticated subject in current geological disaster monitoring. In previous research, the authors had designed a novel electro...

Feasibility of Locomotive-Mounted Broken Rail Detection

This research examined the feasibility of applying Time Domain Reflectometry to the task of broken rail detection. The key innovation is to regard the track as a two-wire electrical transmission line, and then apply the same electrical pulse/echo technique that is commonly used to locate breaks and shorts in electrical cables. The aim of the proposed locomotive-mounted system is to allow each t...

A 433-MHz Rail-to-Rail Voltage Amplifier with Carrier Sensing Function for Wireless Sensor Networks

In this paper we propose a novel functional amplifier suitable for low-power wireless receivers in a wireless sensor network. This amplifier can change input threshold level as carrier sensing level, since it has a minimum input amplitude to be amplified. A simple rail-to-rail output is suitable for a subsequent digital interface. The target frequency is 433 MHz, and the maximum voltage gain is...