frequency selector 中文意思是什麼

frequency selector 解釋
選頻器
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • selector : n. 1. 選擇者；挑選者；選拔者；精選者。2. 【無線電】選擇器；選波器；調諧旋鈕；波段開關。3. 【計算機】選數器；選數管。4. 分離機。5. 〈澳大利亞〉可向政府廉價購買土地的移民。
  1. Both fine and coarse center frequency controls, combined with a scanwidth selector provide simple frequency domain measurements from 100 khz div

    中心頻率控制有微調和粗調，掃頻寬度選擇從
  2. In its digital processing circuit, clock chip with high precision and temperature compensation is uesd as reference clock. high frequency reversible counter is used to count trimmed impulse signal forward or backward and two pathes saw signals are selected timely by multichannel selector

    數字信號處理電路採用高精度、具有溫度補償的時鐘晶元作為基準時鐘，採用高頻可逆計數器對整形后的脈沖信號進行正向或逆向計數，採用高性能的多路選擇器控制兩路saw信號的定時選擇。
  3. The article put forward a practical and reliable project for coins selector system on the base of essentiality of coins selector, and according to the characteristics, such as size, material of chinese coin system, designs double - way electric whirlpool sensor made of low frequency transmission electric whirlpool sensor and high frequency reflection electric whirlpool sensor to detect different characters of coins. the system realizes coins selecting with high speed and high accuracy

    本文從電渦流傳感器的原理和特性出發，根據中國硬幣體系中各幣種的尺寸、材質等特徵，結合自動售貨機的投幣器的課題進行研究，設計了一個具有學習功能的智能投幣器，實現了對硬幣的準確辨識，文中詳細地介紹了智能投幣器系統的硬體組成和軟體設計。
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