濕敏元件 的英文怎麼說
中文拼音 [shīmǐnyuánjiàn]
濕敏元件
英文
dew cell-
Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下: 1 )對翅片管蒸發器結構特點進行分析,選取適當的微元控制體,就干、濕和霜工況下對每個微元分別進行傳熱傳質分析,基於經驗關系式確定霜的有關參數,對于霜工況下的霜生長建立模型,經適當假設,運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型,為系統模擬奠定基礎; 2 )對蒸發在大擾動下的開、停機過程,運用動態集中參數模型進行分析和計算,為更好地描述製冷系統運行的全過程奠定基礎,同時也為製冷系統實現自動控制提供一定的理論基礎; 3 )對蒸發器正常運行過程,運用動態分佈參數和參數間定量耦合的觀點來分析和計算,為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性; 4 )編寫翅片管蒸發器動態特性模擬計算程序,可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場,實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。4 - vp - co - buma quaternized with octyl bromide were found to be humi - sensitive material with good linearity, high sensitivity, fast response, high stability at high humidities
以溴代正辛烷季胺化4vp - co - nbuma為濕敏材料,制備濕敏元件,其具有響應線性度好、靈敏度高、響應快、高濕穩定性好等優點。Simultaneously cross - linked and quaternized 4 - vp - co - nbuma was also investigated as humidity sensing materials and showed good linearity, high sensitivity, good high stability at high humidity and high temperature, and durability to organic solvent, etc. sensors based on 4vp - co - buma ( vp / buma = l / l ) with crosslinking and quaternization reaction of 17 hours exhibited a change of three orders of magnitude ( 104 ~ 107 ) in impedance over the range of 95 % rh ~ 30 % rh, showing high sensitivity, and little hysteresis was observed
元件具有響應線性度好,靈敏度高,濕滯小、高溫高濕穩定性好、耐無水乙醇有機溶劑性能好等優點。其中,交聯季胺化17小時配料比為1 1共聚物濕敏元件,在33 rh 95 rh濕度范圍內,阻抗變化達3個數量級( 10 ~ 7 - 10 ~ 4 ) ,響應靈敏度高,幾乎無濕滯。The humidity sensitive characteristics of these sensors prepared by means of self - assembly have been investigated and the effects of electrode structures, concentration of humi - sensing solution, number of bilayers, materials of the outer layer and inner layer on humidity response were discussed
測試了不同體系濕敏膜的感濕特性,探討了電極結構、感濕液濃度、離子強度除閂電翻動復合膜層數、最外層材料、最內層材料等因素對濕敏元件響應特性的影響。The aging mechanism of the humidity sensors has been studied. and it ~ vas proposed that dissolution effect, tunnel effect and ion - destroying effect are the main factors affecting the aging of sensors
初步探討元件老化機理,提出對元件進行高濕電老化時,濕敏膜中存在溶解效應、通道效應以及離子破壞效應。The optimal aging conditions for the sensors investigated are : u 200 mv, f1 khz, t24 - 48 h, rh 81 - 87 %, t 3 80c ii the sensing mechanism of the humidity sensors has been explored by means of complex impedance analysis
合適的老化條件為:施加電壓200mv , 1khz , 24 48h , 38 , 81 87 rh 。採用復阻抗譜分析法,研究元件感濕機理,認為napss濕敏元件感濕機理為離子導電,其電導隨濕度的變化可由改進的onsager方程描述。Furthermore, its response changed little even after the sensor was soaked in water for 30 min. four kinds of multi - layers nanocomposite humidity sensitive films, including sodium polystyrenesulfonate / poly ( diallyldimethylammonium chloride ) ( napss / pdda ), sodium polystyrenesulfonate / poly4 - vinylpyridine quaternized with butyl bromide ( nbubr - p4vp ), sodium polysryrenesulfonate / zinc oxide ( napss / zno ) and sodium poly ( acrylic acid ) / zinc oxide ( paana / zno ), have been prepared by means of self - assembly
用靜電吸引自組裝法制備了聚苯乙烯磺酸鈉( napss )聚二烯丙基二甲基氯化銨( pdda ) 、 napss溴代正丁烷季胺化聚4 -乙烯吡啶( nbubrp4vp ) 、聚苯乙浙江大學碩士學位論文摘要烯磷酸鈉則apss們化鋅面ox聚丙烯酸鈉p句zno四個體系的自組裝納米復合濕敏膜及濕敏元件。Property analysis of humidity sensor of nanometer batio3 on si
硅襯底納米鈦酸鋇濕敏元件特性分析It was found that self - assembly films of napss / pdda showed low impedance, good linearity and high sensitivity. impedance of sensors with 25 bilayers of napss / pdda composite film changed linearly for four orders of magnitude ( 10 - 10 q ) over the range of 20 % rh ~ 95 % rh. furthermore it was found that organic / inorganic nanocomposite films exhibit faster response than organic / organic composites
發現: napssrpdda體系具有阻抗低、響應線性度好、濕滯小、響應快、靈敏度高等優點,其中雙層數為25的濕敏元件在20 rh95 rh濕度范圍內具有良好的線性響應,阻抗變化近4個數量級』 l 』 q卜靈敏度高。The humidity sensors so prepared enjoy the advantages of linear response and wider working humidity range, etc. compared with imported commercial sensors
制得的濕敏元件與國外同類元件相比,具有線性度較好、測濕范圍寬等優點。It was found that introduction of hydrophobic monomer into polymer chain improved the response linearity and sensitivity, and the impedance of sensors decreased with longer quaternization time and shorter distance between electrode tracks
發現:疏水性單元的引入,提高了濕敏元件的響應線性度和靈敏度;季胺化時間的延長,使聚合物季胺化程度提高,濕敏元件阻抗減小;電極叉指間距增大,阻抗增大。Humidity generators and humidity testing methods for humidity sensors
濕敏元件用濕度發生器和濕度測試方法Thin film resistive - type polymer humidity sensors have been prepared on small interdigital gold electrodes, using sodium polystyrenesulfonate ( n pss ) and sodium salt of hydrated poly ( styrene - alt - maleic anhydride ) ( na - sma ) as sensing materials
本文以聚苯乙烯磺酸鈉( napss ) 、苯乙烯?馬來酸酐共聚物鈉鹽( na - sma )等為濕敏材料,在小型叉指金電極上成膜,制備了高分子電阻型薄膜濕敏元件。Sensors based on nanocomposites of meba - co - si with nanosized zinc oxide colloids was prepared, which show smaller impedance, good linearity, small hysteresis ( < 2 % rh ) and fast response ( less than five seconds )
復合后濕敏元件阻抗減小,響應線性度好,濕滯小( 2 rh ) ,響應快,耐水性好:浸水( 30min )前後響應幾乎不變。The effect of sensing materials on humidity response of sensors has been investigated. humidity sensor based on na - sam exhibits fast response and small hysteresis, and sensors with high sensitivity, small hysteresis and wide sensing range can be prepared using composite of na - sma and napss
研究了濕敏材料對元件響應特性的影響,發現na - sma具有響應快,濕滯小的特點,其與napss以一定比例復合,可制得靈敏度高、濕滯小、感濕范圍寬的濕敏元件。Telecommunications - classification of moisture sensitive components
電信.濕敏元件的分類General specification for the capacitance type humidity sensor and transducer
電容式濕敏元件與濕度傳感器總規范Resistance type humidity sensors for use in electronic equipment. part1 : general specification
電子設備用電阻式濕敏元件.第1部分:總規范Resistance type humidity sensors for use in electronic equipment. part2 : sectional specification : resistance type humidity sensors with linear characteristic
組合型電阻式濕敏元件.第2部分:分規范:電子設備用電阻式濕敏元件Resistance type humidity sensors for use in electronic equipment. part2 : blank detail specification : resistance type humidity sensors with linear characteristic assessment level e
電子設備用電阻式濕敏元件.第2部分:空白詳細規范:組合型電阻式濕敏元件評定水平e分享友人