gating method 中文意思是什麼
gating method
解釋
開澆口方法-
The influences of foundry process and method factors on combination effect was investigated including the influences of gating system design, pouring temperature, atmospheric pressure of mould cavity, thickness of cast - penetrated layer and so on
作者就澆注系統、澆注溫度、型腔氣壓、鑄滲層厚度等工藝參數對鑄滲效果的影響進行了試驗研究。 -
The research showed that basin is the more important feeding resource than runner in runner type gating system in lost wax casting. therefore, on the basis of the basin as feeding resource, runner and ingate as feeding channel, a new design method for runner type pouring and feeding system in investment casting was developed. the corresponding feeding mathematical pattern and allowable total weight listed for casting cluster with different basin were established after analyzing the practical feeding of basin and the calculating process for design was described in detail
在熔模鑄造橫澆道型澆注系統中，澆口杯是比橫澆道更為重要的補縮源，因此在立足於澆口杯為補縮源、橫澆道和內澆道為澆注補縮通道的基礎上，開發了適用於熔模鑄造橫澆道型澆注補縮系統設計的新設計方法，在詳細分析了澆口杯的實際補縮情況后，建立了相應的數學補縮模式和不同澆口杯的鑄件組許用鑄件總質量表，並具體介紹了設計計算過程。 -
This paper investigates a method of applying the fiber grating tuning devices to realize the detection of central reflected wavelength of fiber gating, and validates of feasibility. and some major applications of fiber grating technique are discussed
論文探討一種利用光纖光柵調諧裝置實現對被測光柵中心反射波長的檢測的方法並驗證其可行性；分析討論光纖光柵技術在光通信中的一些主要應用。 -
In dtc system, the concept of space vector is introduced to analyze and control the ac motor, the electromagnetic torque and flux are caculated and controlled in the stator reference frame, and the optimal pwm gating signas are generated to control the inverter according to the output of the bang - bang regulator. in this paper, the dtc system is designed based on dsp. a speed estimation method is derived detailedly and the sensorless speed close - loop control is conducted. in this system, there are some problems, such as flux drift and torque ripple. to resolve these problem, a modified flux caculation method and some measures such as speed lpf, torque slide filtering are adopted. the system performance is enhanced by these mersures
直接轉矩控制採用空間矢量的概念來分析異步電機的數學模型和控制其各物理量，直接在定子坐標系中計算和控制轉矩和磁通，藉助于離散的兩點式調節（ bang - bang控制）產生pwm信號，直接對逆變器的開關狀態進行優化控制，以獲得轉矩的高動態性能。本文採用dsp設計了直接轉矩控制系統，詳細推導了速度估計方法，進行了無速度傳感器的速度閉環控制。
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