instrument constant 中文意思是什麼

instrument constant 解釋
食品常數
  • instrument : n 1 儀表，儀器 〈cf tool implement〉。2 樂器 （＝musical instrument）。3 【法律】證件，證券，文件...
  • constant : adj 1 恆定不變的，固定的，穩定的，恆久的；繼續不斷的。2 不屈不撓的，堅韌的。3 忠實的，有節操的。n...
  1. There are over 80 sets test apparatus in tech - innovation centre, including : anechoic chamber, vibration tester, vibration measurement analysis, impact instrument, constant temperature and humidity facilities. salt spary test case, circle insulation withstand voltage tester, insulation resistance tester, withstand voltage tester, electric lead tester, electrical leakage tester, earth resistance tester, chassis dynamometer, chassis dynamometer control system, high stability dc resistance tester, electrical capacity tester, temperature rise test system

    中心擁有各類分析測試儀器和試驗裝置80餘臺套，包括：消音室振動臺噪聲振動測試分析系統沖擊儀恆溫恆濕實驗儀鹽霧試驗箱匝間耐壓分析儀絕緣電阻分析儀對地耐壓分析儀泄露電流測試儀對地電阻測試儀測功機測功機控制系統高精度直流電阻測試儀電參數測試儀帶電溫升測試儀復合式三坐標測量儀萬分投影儀及電功測試分析系統等。
  2. This instrument keeps constant temperature by circling air both. it use computer to control temperature and oscillation frequency, led digital display, it has stable performance, and its quality is reliable, its appearance is beautiful and digniful. it can be operated conveniently. it is the suitable instrument uhcih is used on researching and production by the trades of bioengineering. medicine. hygienist and so on

    該振蕩培養箱是利用旋轉空氣浴進行恆溫的振蕩器，溫度和振蕩頻率均採用電腦控制，用led數碼顯示.該振蕩器性能穩定，質量可靠，造型美觀大方，操作方便，實為生物工程、醫藥、衛生等行業科研和生產中使用的理想儀器。
  3. The carrier gas is supplied to the instrument at constant pressure from a cylinder.

    載氣一般由壓縮鋼瓶供給，並要使載氣壓力恆定。
  4. This paper include the following parts. firstly the sine exciting - voltage is guaranteed by direct digital synthesize technology ; secondly the digital output of cos ( 9 ) and sin ( 9 ) are generated by microcontroller ; thirdly the two voltage signals which are the product of the two former signals gained by the multiplying d / a converter, being filtered and amplified, have constant frequency, and one amplitude has sine function relationship of with the input angle, and the other amplitude has cosine function relationship of with the input angle ; finally the two signals are acquired and analyzed by relative instrument and software

    主要由以下幾部分組成：用數字頻率合成技術（ dds ）產生正弦激勵電壓信號u _ msin （ t ） ；用單片機產生幅度的數字量輸出sin （ ）和cos （ ） ；用乘法型d a轉換器實現激勵電壓和幅度的乘積，並通過濾波器和功放后即得到頻率固定，幅值隨輸入角成正餘弦變化的電壓信號；最後用數據採集卡採集輸出信號，顯示波形並進行頻譜分析。
  5. Developing the intelligent instrument of measuring internal resistance of dc power supply with constant voltage

    智能直流穩壓電源內阻測量裝置的研製
  6. Enter the newest symbol of the corporate - bond bonanza : an instrument known cryptically as the constant proportion debt obligation, or cpdo

    公司債券這一富礦的最新代表出現了：固定比例債券，或簡寫為cpdo ，一個意義深遠的工具。
  7. Virtual instrument based on labview 7 express for determinating dissociation constant of weak acid by conductivity

    電導法測定弱酸離解常數的虛擬儀器
  8. Plane diffraction grating, logarithmic amplifier and stable constant - current source are used in the system, thus the performance of the instrument is enhanced significantly and the cost is reduced

    系統採用了平面衍射光柵、專用陣列探測器、對數放大器以及高穩定恆流源，有效地提高了儀器的整體性能，同時降低了生化分析儀的成本。
  9. The soil ' s stress path has important effects on the retaining wall ' s lateral deformation and the soil ' s deformation during the excavation of foundation pit. an experiment simulating the soil ' s stress path behind the wall has been carried out with the stress - controlled triaxial instrument. the principle stress ratio keeps constant during consolidation and the soil samples are permitted to drain during unloading process

    利用應力式三軸儀對基坑開挖過程中圍護結構后側土體變形影響較大的因素：土體的應力路徑進行了試驗模擬，試驗是在等主應力比固結后側向卸荷而軸壓不變的排水情況下進行的。
  10. Practice shows that the instrument has follow characteristics : wids measuring range, high accuracy, intelligence of calibration constant adjustment and zero adjustment, convenience of transducer replacement and easily use, good linearity and measurement error within 0. 5 %

    實踐證明：該儀器具有測量范圍寬，測量精度高，校準常數調節和零點調節實現智能化，換能器更換方便和使用簡單等特點，且具有較好的線性度，其測量誤差均在0 . 5 %以內。
  11. Adding gpib interface to traditional semiconductor constant - temperature controller, making them become program - controlled instrument which can combine with the computer and form auto - test system

    帶有ieee488介面的儀器均兼容，只要把測試任務輸入適當的測試程序，就可以自動測試。
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