溫度系數值 的英文怎麼說
中文拼音 [wēndùxìshǔzhí]
溫度系數值
英文
temperature coefficient value- 溫 : Ⅰ形容詞(不冷不熱) warm; lukewarm; hot; gentle; mild Ⅱ名詞1 (溫度) temperature 2 (瘟) acute ...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 數 : 數副詞(屢次) frequently; repeatedly
- 溫度 : [物理學] temperature
- 數值 : numerical value; numerial number; figure; magnitude; value數值表 numerical tabular; 數值天氣預報 ...
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2 the theoretical values of the second virial coefficient are precisely fitted into some simple expressions. according to one of them, a new temperature function for the quadratic terms in cubic equations was derived : the function is simple, general, without acentric factor, truly predictive, theoretically sound, and applicable to all the van der waals - type equations
2將第二維里系數的理論值較精確地擬合為幾種簡單的表達式,並據此導出了立方型狀態方程中二次項溫度函數的新形式該式簡單、通用,不含偏心因子,具有真正的預測功能和堅實的理論基礎,原則上適用於所有vanderwaals型方程。Bismuth ruthenate and silver were selected as conductor phases and the mixture of calcium oxide - alumina - silicon dioxide ( cao - al _ 2o _ 3 - sio _ 2 ) glass and lead oxide - boron oxide - silicon dioxide ( pbo - b _ 2o _ 3 - sio _ 2 ) glass was selected as inorganic binder phases. it was found that, with the increasing of volume fraction of silver and conductor phase, sheet resistivities descend and there are critical thresholds
實驗發現,隨著功能相百分含量的增加,電阻膜層的方阻值逐漸減小,存在兩個臨界閾值,電阻溫度系數偏向正值;功能相中銀百分含量增加,膜層的方阻值逐漸減小,有一個臨界閾值,電阻溫度系數偏向正值。The chosen controlled parameter must be single function of extraventricular temperature because extraventricular temperature affect immediately radiator ' s emitting heat, heat net supplying heat and user ' s heat load. but the sometime chosen controlled parameters all are ' t extraventricular temperature ' s single function
室外溫度的變化直接影響用戶熱負荷、散熱器散熱量、熱網供熱量的大小,所以選擇的被控參數應與室外溫度有單值函數關系,而以往所選的被控參數與室外溫度之間都不是單值函數關系。The resuts showed that the annual average temperature had an increasing trend ; summer, autumn and winter average temperature also had an increasing trend and the amplitude in winter was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients was bigger ; the change of standard deviation and coefficient of variation were acute during winter ; the coefficients of skewness were positive value during summer and autumn ; the kurtosis coefficients were bigger during winter
得出如下結論:和田地區年氣溫有增加的趨勢;夏季、秋季、冬季氣溫也有增加的趨勢且冬季氣溫值增幅較大;標準差及變差系數都是冬季變化較為劇烈;偏度系數在夏季及秋季為正值;峰度系數值在冬季較大。The average partical size of bismuth ruthenate and pbo - b _ 2o _ 3 - sio _ 2 glass was researched. the smaller bismuth ruthenate partical is, sheet resistivity is lower and temperature coefficient of resistance ( tcr ) is more positive and the refiring change ratio is nearer to zero. the limit size of bismuth ruthenate partical is 0. 56 m
研究了各相粉體平均粒徑對膜層性能的影響,結果表明:釕酸鉍平均粒徑越小,膜層的方阻值越小,電阻溫度系數偏正,重燒變化率越接近零值,球磨工藝的極限平均粒徑為0 . 56 m 。A hydrogen and argon ions mixing beam was implanted into the deposited vanadium oxide film. after annealing, vo2 film with tcr ( temperature coefficient of resistance ) as high as 4 % was obtained. the bombardment of ar + could break v - o bond of v2o5 molecule in deposited film and implanted h + resulting in the deoxidization of v2o5, so the vo2 thin film could be prepared by proper control of the dose of ar + / h + implantation
利用離子束增強沉積設備,在ar ~ +離子束對v _ 2o _ 5靶濺射沉積的同時,用氬、氫混合束對沉積膜作高劑量的離子束轟擊,使得被氬離子轟擊后斷鍵的氧化釩分子,再被注入氫降價,然後經適當的退火,成功地制備了熱電阻溫度系數高達4的vo _ 2薄膜(國外報道值為2 - 3 ) ,並研製了單元懸空結構探測器和8 1 , 16 1線性陣列。The paper introduces the fundamentals of the temperature distribution in the borehole drilled in the frozen formation, and discusses the ascertainment of these parameters, including the mass quantity of circulation medium, the coefficient of thermal conductivity of drilling rods, the coefficient of the intensity of heat exchange and the coefficient of unstable heat exchange between the rock and the circulation medium, and the rising of the temperature of the circulation medium in the bottom of the bore
摘要介紹了凍土鉆孔內溫度分佈研究的理論基礎,其中主要討論了沖洗介質的質量流量、鉆桿桿壁的導熱系數、巖石同沖洗介質的熱交換強度系數與不穩定熱交換系數,以及孔底沖洗介質溫度升高值的確定。The theoretical results showed that point spread function ’ s distribution and the stray light mainly influenced the space resolving power and the measurement precision of the temperature measurement system, so we supposed some methods, which can improve the space resolving power, and the results proved the space resolution improved from 37 m to 16 m. 2. having made the space resolution come to 16 m, in order to improve the space resolving power more, we used image reconstruction method to reconstruct the
利用這兩種方法,可以將測得的溫度場分佈中被點擴展函數卷積鈍化掉的部分復原回來,實驗測得微小面元溫度分佈在復原后溫度最高值高於復原前最高值,且分佈曲線變窄,較好地提高了系統的空間分辨能力,最終得到真實溫度分佈的最佳估計。The sensor offset is governed by its thermal drift, electric drift and time drift, so eliminating the offset thermal drift in the measurement of sensor needs to keep the values of resistance and temperature coefficient for different resistor strips to be equal each other
壓力傳感器的零點存在熱漂移、電漂移和時間漂移,減小壓力傳感器的熱零點漂移的措施是各力敏電阻的電阻值及其溫度系數的相等性。The sensor offset is governed by its thermal drift, electric drift and time drift, so eliminating the offset thermal drift in the measurement of sensors requires to keep the values of resistance and temperature coefficient for different resistor strips to be equal each other
壓力傳感器的零點存在熱漂移、電漂移和時間漂移,減小壓力傳感器的熱零點漂移的措施是各力敏電阻的電阻值及其溫度系數的相等性。We deduced a expressions for threshold voltage temperature coefficient of short channel most. and found that the coefficient is almost unchanged in a quite wide temperature range which is higher than the room temperature, but it increased sharply at high temperature
推導了了一個短溝道most閾值電壓溫度系數表達式;發現短溝道most閾值電壓溫度系數在高於室溫的一個較寬的溫區內近似不變,但在溫度較高時迅速增大。This bias mainly come from the un - uniform characteristics of the system and the couplings between the receiving channels. if we use fourier transformation to retrieve the image, the errors introduced by this bias will not be represented
如果使用理想的傅立葉方法反演亮溫圖像將反映不出系統的不理想因素,而且因為這些誤差對于可視度函數值的影響不同,一一剔除是極其困難的。Though we want to get the optimized values of the unknown controlling parameters in cc process through the surface temperature of the billet, the direct solution is difficult. of course, those unknown parameters have close relation with the surface heat flux of the billet
由於這些待辨識的工藝參數是與連鑄坯的表面熱流有著密切的關系,所以需要首先利用連鑄坯的表面溫度測量值來計算出連鑄坯的表面熱流,然後再辨識出未知的工藝參數。The traditional bandgap reference circuit was improved in the design, which includes the applying of self - bias structure and cascode structure, output of the opamp was used as self - bias voltage, saving bias circuit, and then it was helpful to get low power consumption. through using poly resistance of high value with low temperature coefficient, we reduced the influnce to circuit, if power supply did not change, we must decrease operating current to decrease power consumption, and increasing value of resistor could decrease the operating current efficiently. poly resistance of high value had large value of squared resistor, so we could save layout area
對傳統帶隙基準電路進行了改進設計,採用自偏置結構和鏡像電流鏡結構,利用運放的輸出電壓作為運放的偏置電壓,節省了偏置電路,降低了功耗;使用低溫度系數的多晶硅高值電阻,降低了電阻溫漂對電路的影響;在電源電壓不變的情況下,為了減小功耗就必須減小工作電流,而增大電阻的阻值能有效地減小工作電流,多晶硅高值電阻的方塊電阻很大,可以節省版圖面積。Results show that triple reflection signal and quintuple reflection signal of ytype and s type are less 12db, 16. 67 db and 11. 8 db, 17. 3 db than that of " - ' " type saw mass sensor device. experiment results show that insertion loss ( about 14db ) of the devices in center frequency is close to the theoretical value ( about 16db ) developed by p matrix representation. sensing characteristics of y type and s type saw mass sensors have been also tested and analysed in detail. ethanol and pure water mixed solution containning trace nacl is titrated into mass loading area of y type and s type saw mass sensors devices to detect their mass loading sensitivities
本文對y型和s型雙聲路saw質量傳感器件的傳感特性進行詳細測試分析,在y廠書型和s型雙聲路聲表面波器件的質量沉積區中滴定含有微量naci溶質的乙醉和水的混合溶液,以測試器件的質量沉積效應靈敏度,它們分別約為2967ppm . cm丫夢g ( y型)和3一15ppm . emz /協g ( s型) ,與理論值38 . 93ppm . emz / 「 g相近,拼處于國內外同型和s型雙聲路聲表面波器件的頻率一溫度特性幾,其單聲雙聲路相對溫度系數約為10一12hz / ,處于國內外同類研究先進水平。At present the manufacture of surface acoustic wave use the technology of the final submicron. a series of the devices of low insertion loss, high q saw rayleigh surface acoustic wave resonators or stws that insertion loss has less than 5db, load quality factor ( ql ) is more than 1000 on the quartz piezoelectric with zero of first temperature factor in the research. these difference frequencies are 60mhz, 280mhz, 739mhz and 1ghz of normal frequency and at also surface acoustic wave. using 1. 25db noise factor amplifier, careful design curcuit, good setting printed curcuit board, and using the 1ghz surface transverse wave resonator as frequency element, researching the low phase noise surface acoustic wave with sideband phase noise near ? 120dbc / hz deviating 1khz on carrier, spurious suppress with 80db
本研究採用一階溫度系數為零的壓電石英基片上製作出損耗小於5db 、有載品值因素( ql值)超過1000的一系列低損耗、高q值聲表面波rayleigh波或stw諧振器,頻率分別為60mhz 、 280mhz 、 739mhz和1ghz等不同頻率的高性能聲表面波諧振器。並採用噪聲系數為1 . 25db的低噪聲系數放大器,精心設計電路,優化設計布置印製電路板,用標稱頻率為1ghz的聲表面波諧振器為頻率控制元件,製作出在偏離載頻1khz處的單邊帶相位噪聲近- 120dbc / hz 、雜波抑制達80db以上的低相位噪聲聲表面波振蕩器。But its sintering temperature is so high that it cannot be sintered under 1000 with low melting point electrode materials like ag, cu etc. presently investigations about this material are mainly via glass - ceramic technique to decrease the sintering temperature and the dielectric loss is high. for the first time, this investigation manufacture a casio 3 system low dielectric and high frequency microwave dielectric ceramic via tape casting with basic material altered and additives doped
本文以casio _ 3體系為研究對象,首先對casio _ 3體系進行改性,並首次採用li _ 2o和bi _ 2o _ 3作為燒結助劑,降低體系燒結溫度,在此基礎上,採用catio _ 3調節陶瓷的頻率溫度系數,制備出微波介電性能優良的具有工業應用價值的casio _ 3系ltcc低介高頻微波介質陶瓷。Pbo - b _ 2o _ 3 - sio _ 2 glass reacts with bismuth ruthenate and lead ruthenate is produced as transition layer. the transition layer can make the interface gradually change and the properties of resistors are improved at the same time. based on the study above, the way to get series of pastes was developed
鉛硼硅玻璃粉體平均粒徑對厚膜電阻的性能影響有一極值點,約為1 . 51 m ,在該點處膜層的方阻值最小,電阻溫度系數絕對值最小,重燒變化率最接近零值。Not only regulator can transform a constant voltage to some kinds of various voltages, but also the transformed voltages must be not changeable with temperature changing ( i. e. zero temperature coefficient ). and it should be stable though the power supply is not immune. so the art of regulator design should be more challenging
電壓調節器不僅要具有將某個固定電壓轉換成所需要數值的電壓的功能,而且轉換后的電壓須具有在一定的溫度范圍內不隨溫度的變化而變化(也即零溫度系數) ,以及不受輸入電壓噪聲影響的特點,這對電壓調節器的設計提出了更高的要求。An analysis of voltage temperature parameter of high - voltage ldmos threshold value
閾值電壓的溫度系數分析分享友人