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| Development of Temperature and Humidity Detection Device for Microenvironment |
| Received:February 18, 2019 Revised:April 09, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.08.016 |
| KeyWord:microenvironment temperature and humidity detection device |
| Author | Institution |
| LI Di-fan |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| XU Wen-qing |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| YANG Wan-jun |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| LIU Jun |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| FENG Xian-he |
Southwest Technology and Engineering Research Institute, Chongqing , China |
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| Abstract: |
| Objective To develop a device for measuring and recording microenvironment temperature and humidity of packaging containers, to detect the microenvironment temperature and humidity test data of packaging containers. Methods Based on RS485 communication interface, the microenvironment data acquisition and recording device was divided into two parts:hardware and software,hardware includes five parts:human-machine interface, memory, sensor, RS485Hub and power supply; softwareincludes two parts:data acquisition and processing program and visual interface, thus the test and record of temperature and humidity test data in microenvironment can be realized. Results The microenvironment temperature and humidity of packaging containers samples in storage environment were tested for a period of time with the developed device. The test results were compared with those measured by qualified thermohygrometer and the error analysis was made. Conclusion The microenvironment temperature and humidity measuring and recording device developed has the advantages of stable performance, small size, convenient carrying, and can simultaneously measure the microenvironment temperature and humidity of 32 groups of test sample. It has high measuring accuracy and wide application rage. |
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