Applications of The Equipment and System for Greenhouse Microclimates Control

本文目的在於延續溫室微氣候環控中簡易感測系統之製作與裝置。以實地裝設於宜蘭農工專校新建溫室，進行環控操作，將實際所面臨及遭遇到的技術問加以克服及設計改良。該溫室環控以溫濕度控制模式為主體寫成C語言程式，配合個人電腦多功能實驗界面卡（內含類比／數位轉換、數位／類比轉換、數位訊號輸出入及計數器等界面）、多工及放大器界面卡、固態電譯驅動卡等電腦周邊界面裝置作系統連結及運轉，加上以感溫IC(AD 590)計測室內外乾濕球、土層、披覆材內外及作物葉面等溫度並自設小型農業微氣象觀測站（包括電氣直示型通風溫濕度計測箱、太陽電池日射計、風杯～發電機風速計及感雨器）計測室外微氣象。經實地操作運轉證明，此裝置組合滿足溫室設施樣本控制系統之控制方式並有效調節室內溫濕度環境。其造價低及施工技術已有模式可循，極適合推廣至微氣候環控要求較高之精密溫室。 The purpose of this study is to install a simple sensing system for microclimates control in a fan-pad type greenhouse. The simple sensing system has been installed in a greenhouses located at Horticlture Department, National I-lan Institute of Agriculture & Technology. The system also has been operated to solve the problems such as stability and malfuction related to the system¡¦s operation. The system is mainly classified as the temperature- humidity control mode 1 and has been modified to satisfy the control requirements. A computer program written by C- Language has been created to model the temperature-humidity control process. The equipment consists of 1 Personal Computer (PC), 1 PC multifunction lab card (involve 12 analog / digital converters, 2 digital/analog converters, 1 digital signal input/output-and-counter card), 1 multiplexer & amplifier card, SSR & relay driver board, 21 temperature sensors (AD590) and some other microclimate sensors. T type thermalcouple is being substituted by AD590 type temperature sensor to measure the temperature of soil layers, cover material, dry-wct bulb (both indoor and outdoor) and the leaf surfaces ; and a significant result has been found in this study. For the purpose of measuring microclimates, the sensors which include 1 electric-directed type ventilation temperature-humidity sensor, 1 solar- cell type radiation sensor, 1 goblet- generator type wind-speed sensor and 1 rain inductor are installed in a Agricultural Meteorological Data Acqusition station. This study shows that the set-up system well controls the temperature and humidity in the greenhouses. Two other two contibutions are found from this study (1) the cost of the set-up system is as low as $10,000, and (2) the experience gained from the installation provides us much knowledge for future application. As a result, the system set-up in this study can be applied to the greenhouses which require a strictly environmental control

Experimental Research on Flow Characteristics in Cone-Shaped Axial Micro-Channel

介绍了生物转基因显微注射的应用和存在的问题.针对显微注射所用的锥形轴对称微管道,进行了流动过程理论分析,并在微流动实验平台上对这种管道内流动进行了流量与压力特性参数的连续观测实验,详尽介绍了实验装置和实验过程,并给出了尖端直径为4～15μm的锥形管道流动实验结果

锥形轴对称微管道内流动特性实验研究

介绍了生物转基因显微注射的应用和存在的问题。针对显微注射所用的锥形轴对称微管道，进行了流动过程理论分析，并在微流动实验平台上对这种管道内流动进行了流量与压力特性参数的连续观测实验，详尽介绍了实验装置和实验过程，并给出了尖端直径为4～15μm的锥形管道流动实验结果

Using Electrodeposition to Fabricate Mould for Polymer Microfluidic Chip

利用电沉积技术制作微流控芯片金属模具,方法是:使用新型超厚光刻胶SU8胶作近紫外光刻,并在光刻后的图案上电沉积金属Ni,之后去胶,最终获得金属模具.该法减小了电沉积工作量.采用反向电流预处理基底、并适当增加电铸液的添加剂以及脱模后真空退火,即可明显提高电沉积微结构与基底的结合力.用此金属模具成功热压了PMMA,制成了微流控芯片.Many researches have been focused on polymer microfluidic chip in recent years and the mould plays an important role in its fabrication process. Using electrodepositingmethod to fabricate a metal mould for polymer microfluidic chip has been presented in this paper. An ultra-thick photoresist SU-8 was coated on a pretreated metal plate, after photolithography, nickel was electrodeposited in the patterned SU-8, then was removed the SU-8 to obtain a final metal mould. This methodreduces workload of electrodeposit largely. Applying counter current before deposit, adding additive to solution and vacuum anneal after demould have been used to improve the binding force between Ni substrate and electrodeposit structure.作者联系地址：大连理工大学精密与特种加工教育部重点实验室,大连理工大学精密与特种加工教育部重点实验室,大连理工大学精密与特种加工教育部重点实验室,大连理工大学精密与特种加工教育部重点实验室,大连理工大学精密与特种加工教育部重点实验室 辽宁大连116023 ,辽宁大连116023 ,辽宁大连116023 ,辽宁大连116023 ,辽宁大连116023Author's Address: *,CHU De-nan,LOU Zhi-feng,LIU Chong,WANG Li-dingKey Lab for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology,Dalian 116032,Chin