detecting grating 中文意思是什麼
detecting grating
解釋
檢波光柵-
Aimed at the present status of detecting oil storage fluid, the article advances a method which utilizes the dramatic feature of optical fiber sensor to develop the optical fiber liquid height meter, and to substitute the manual examination means, and supplements the optical fiber liquid overhead alarm equipment, the optical fiber grating temperature sensor, and uses the network technique to build the optical fiber sensing safety supervisory system to realize the intelligent examination of oil - tank area, thereby avoids or decreases occurrence and the risk of accident, and supplies the reliable guarantee for the big - and - middle - sized tank farm safe production
本文針對儲油液位的檢測現狀，提出利用光纖傳感器的特點研製光纖液位計，取代手工檢測的方法，輔以光纖液位高位報警器，光纖溫度傳感器，並應用網路技術構建光纖傳感安全監測系統，實現石油罐區的智能監測，從而避免或減少事故的發生，降低風險，為大中型油庫的安全生產管理提供可靠的保障。本文首先對安全監測系統中的核心硬體? ?光纖液位計的工作原理及特點進行了介紹。 -
This system provides pulse signal and direction signal to step motor driver by computer ’ s controlling step motor control card, and makes motor and guage ’ s pointer rotate. computer gets the micro displacement measured by grating measuring system via rs232 serial port, and acquires guage ’ s image by high precison ccd camera, then processes the guage ’ s image by software, including pre - processing, graying, binarization, thinning and hough transform, so as to recognize the position of guage ’ s pointer, finally calculates all kinds of precision on basis of algorithm established by national detecting rules of gauges
本系統通過計算機控制步進電機控制卡來給出步進電機驅動器需要的脈沖信號和方向信號，進而帶動電機驅動儀表指針轉動，計算機通過串口實時採集光柵測量系統的微位移信號，並且通過高精度ccd攝像機實時獲取表盤圖像數據，同時通過計算機軟體實現表盤圖像處理，包括預處理、灰度化、二值化、細化和hough變換等，最終快速識別出表盤指針的位置，並根據國家表類檢定規程所制定的演算法檢定出指針式儀表的各種精度。 -
In this paper we demonstrated a new field - controllable liquid - crystal phase grating which to used in orientation detecting and automatic tracking and aiming in space communication
本文提出了利用一種新的液晶器件對空間光通信中對激光源進行方位探測和自動跟瞄，即液晶電控光柵。 -
Fiber bragg grating sensor for detecting temperature and flowvelocity
一種測量溫度和流速的光纖光柵傳感器 -
An auto - detecting method of the gauge with pointer that is based on digital image processing technique, high precision grating technique and step motor control technique is presented. there are advantages of high precision, high efficiency and auto - detecting for apply digital image processing technique to detect precision of the gauge with pointer ; moreover, it ’ s helpful to improve system ’ s resolution when high precision grating technique is applied to measure micro displacement ; also it makes system more automatic to control step motor in computer via step motor control card
本文研究的指針式儀表的自動檢定方法是基於數字圖像處理技術、精密光柵測量技術以及步進電機控制技術的，將數字圖像處理技術用於指針式儀表的檢定，具有精度高、效率高、易於實現自動測量等優點;另外，將精密光柵測量技術用來測微位移，有利於提高系統的解析度;還有，通過步進電機控制卡來實現在計算機上對步進電機的控制，提高了系統的自動化程度。
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