旁通系數 的英文怎麼說
中文拼音 [bàngtōngxìshǔ]
旁通系數
英文
by-pass factor-
The automation of coal flotation has been wandering for many years in china. the production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry, ignoring the quantity and quality of the products. aiming at this problem, method of measuring the flotation technical parameters was studied, the slurry level meter and the slurry ash - measuring device were worked out, and the computer control system of the coal flotation was designed. the feedback control was realized by using the fuzzy logic control control technology to regulate the reagent addition and the slurry level in the flotation tank according to the concentrate ash content detectedby the coal slurry ash - measuring device developed. the industrial experiment indicates that the performance inedxes of the coal slurry ashmeasuring device have come up to the advanced levek of the world. the application of the detection and control system in huaibei coal preparation plant results in a high concentrate recovery, a decrease of the reagent consumption, ensuring a highly efficient operation
浮選自動化在我國多年來徘徊不前，一直採用根據入浮煤漿中的干煤泥量來確定加藥量的前饋控制方法，而不直接以產品的數質量指標作為控制目標，導致浮選生產效率較低.針對上述問題，研究了浮選工藝參數的檢測方法，開發了浮選漿位儀和煤漿測灰儀，設計了浮選計算機控制系統，它根據煤漿測灰儀旁線檢測的精煤灰分，運用模糊控制技術，通過調整浮選藥劑添加量和浮選機漿位，來實現浮選過程的反饋控制.工業性試驗表明，煤漿測灰儀的性能指標接近國外先進水平.煤泥浮選測控系統在淮北選煤廠的現場使用，使浮選生產在精煤灰分合格的前提下，得到了較高的產率，並降低了藥劑用量，從而保證選煤廠高效率地運行Abstract : the automation of coal flotation has been wandering for many years in china. the production efficiency is relatively low because of the feed forward control which adds the flotation reagent based on the fine coal in feed slurry, ignoring the quantity and quality of the products. aiming at this problem, method of measuring the flotation technical parameters was studied, the slurry level meter and the slurry ash - measuring device were worked out, and the computer control system of the coal flotation was designed. the feedback control was realized by using the fuzzy logic control control technology to regulate the reagent addition and the slurry level in the flotation tank according to the concentrate ash content detectedby the coal slurry ash - measuring device developed. the industrial experiment indicates that the performance inedxes of the coal slurry ashmeasuring device have come up to the advanced levek of the world. the application of the detection and control system in huaibei coal preparation plant results in a high concentrate recovery, a decrease of the reagent consumption, ensuring a highly efficient operation
文摘:浮選自動化在我國多年來徘徊不前，一直採用根據入浮煤漿中的干煤泥量來確定加藥量的前饋控制方法，而不直接以產品的數質量指標作為控制目標，導致浮選生產效率較低.針對上述問題，研究了浮選工藝參數的檢測方法，開發了浮選漿位儀和煤漿測灰儀，設計了浮選計算機控制系統，它根據煤漿測灰儀旁線檢測的精煤灰分，運用模糊控制技術，通過調整浮選藥劑添加量和浮選機漿位，來實現浮選過程的反饋控制.工業性試驗表明，煤漿測灰儀的性能指標接近國外先進水平.煤泥浮選測控系統在淮北選煤廠的現場使用，使浮選生產在精煤灰分合格的前提下，得到了較高的產率，並降低了藥劑用量，從而保證選煤廠高效率地運行In this dissertation, the mathematic model of optically controlled phased linearity array is established by basic theory of phased array radar. the problems of instantaneous bandwidth of ocpar and subarray number are researched, the relationship between the excursion of the direction pattern and subarray number, main lobe stretched - out of the direction pattern and bandwidth, side - lobe level of the direction pattern and subarray number, pulse compression and bandwidth, pulse compression and subarray number is analyzed. after corresponding simulations are done, a summary of advantages of ocpar compared with the traditional phased array radar is presented
針對x波段信號，仔細研究了光控相控陣的瞬時帶寬問題和子陣數問題，分析了光控相控陣列方向圖偏移與信號帶寬及子陣數的關系，光控相控陣列方向圖主瓣展寬與帶寬的關系，方向圖旁瓣電平與子陣數的關系，脈沖壓縮與信號帶寬及子陣數的關系，完成了相應的模擬，通過與普通相控陣的對比，總結出了光控相控陣相對于傳統相控陣的巨大優勢。This thesis introduce the design of dsp control for three phase inverter, witch includes digital realization of pwm control, digital pll, swap control between inverter and utility, and communication with mcu. base on inverter model, inverter output l - c filter is investigated, and double - loop control scheme with tms320lf240 are selected
本文主要介紹了基於dsp控制三相逆變器系統的總體設計方案，其中包括spwm控制的數字實現、逆變器輸出電壓的數字鎖相、逆變器與旁路間的切換邏輯及逆變器與上位機的通訊。A cycle track will link all main cyberport facilities. bicycle parking will be provided next to the cycle track and other activity areas
數碼港有一條單車徑連系貫通數碼港各項主要設施，而單車徑及其他活動場地旁邊都設有單車停放處。分享友人