Design of a Temperature and Humidity Monitoring/Sending System Based on SHT1 Temperature and Humidity Sensor

2011 ◽  
pp. 388-391
Author(s):  
Jun Guo ◽  
Mu-Qin Tian ◽  
Mu-Ling Tian
Keyword(s):  
Humidity Sensor ◽  
Temperature And Humidity ◽  
Humidity Monitoring

Granary Temperature and Humidity Detection System

2012 ◽  
Vol 459 ◽  
pp. 181-184
Author(s):  
Lin Jin ◽  
Tong Zhao ◽  
Qiang Liu
Keyword(s):  
Data Acquisition ◽  
Humidity Sensor ◽  
Detection System ◽  
Serial Communication ◽  
Measuring System ◽  
Single Chip ◽  
Communication Mode ◽  
System Realization ◽  
Temperature And Humidity ◽  
Humidity Monitoring

The granary temperature and humidity measuring system , realization P89V51RD2 single chip as the main control core, and a RS232 bus communication mode of granary temperature and humidity monitoring system. Host by P89V51RD2 master MCU driving, and display temperature, humidity, and Luminance, entering commands by keyboard. Attached master machine used 51 core chip STC12C2052AD , digital temperature and humidity sensor SHT10 is used for data acquisition, master and attached master machine all use of serial communication. When the temperature and humidity calibration value is exceeded, it will alarm at the same time.

HIRFL Environment Temperature and Humidity Monitoring System Research and Design

2014 ◽  
Vol 651-653 ◽  
pp. 436-439
Author(s):  
Yun Jie Li ◽  
Yan Yu Wang ◽  
Jia Yin ◽  
Cheng Quan Pei ◽  
Xiao Li Ma
Keyword(s):  
Monitoring System ◽  
Basic Structure ◽  
Heavy Ion ◽  
Safe Operation ◽  
Ion Accelerator ◽  
Environment Temperature ◽  
Temperature And Humidity ◽  
Control And Monitoring System ◽  
Research And Design ◽  
Humidity Monitoring

HIRFL is an all-powerful heavy ion accelerator which is built by IMP of Chinese Academy of Science. It bears a lot of research tasks for china. Its control and monitoring system is very complex and very important, directly determines whether HIRFL safe operation. This paper is to study its much control and monitoring system of temperature and humidity monitoring system. Began to study the basic structure of the hardware, a specific architecture and specific HMI is designed, as well as the situation in the field installation deployment.

COLOR CONTROL OF THE DEVICE WITH LED TAPE ON THE VALUE OF TEMPERATURE AND HUMIDITY OF AIR

2021 ◽  
pp. 53-56
Author(s):  
O. Yu. Kovalenko ◽  
M. D. Rybko ◽  
S. A. Mikaeva ◽  
Yu. A. Zhuravleva
Keyword(s):  
High Temperatures ◽  
Power Supply ◽  
Flash Memory ◽  
Humidity Sensor ◽  
Voltage Regulator ◽  
Lighting Device ◽  
Temperature And Humidity ◽  
Color Control ◽  
Avr Microcontroller

The work is devoted to the development of a lighting device with control of the color of the LED strip depending on the value of temperature and humidity. To develop a prototype of a lighting installation, an A-Star 32U4 Micro microcontroller (analogue of Arduino Micro), 2 pieces of RGB tape of 5 and 10 cm each, a DHT11 temperature and humidity sensor, connecting wires, a case were purchased. The A-Star 32U4 Micro microcontroller used in the proposed setup is a universal programmable module based on the ATmega32U4 AVR microcontroller from Microchip (formerly Atmel), which has 32KB flash memory, 2.5KB RAM, and builtin USB functionality. A voltage regulator and power selection circuitry allows the board to be powered from either USB or an external 5.5V to 15V supply, while a resettable PTC fuse on the USB VBUS power supply and reverse protection on the VIN help protect it from accidental damage. In the course of the work, studies were carried out on the operation of the installation under normal conditions and at low and high temperatures.

scholarly journals Fluorinated Polyimide-Film Based Temperature and Humidity Sensor Utilizing Fiber Bragg Grating

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5469
Author(s):  
Xiuxiu Xu ◽  
Mingming Luo ◽  
Jianfei Liu ◽  
Nannan Luan
Keyword(s):  
Fiber Bragg Grating ◽  
Humidity Sensor ◽  
Field Tests ◽  
Polyimide Film ◽  
Bragg Grating ◽  
Wavelength Shift ◽  
Sensing Applications ◽  
Fluorinated Polyimide ◽  
Temperature And Humidity ◽  
Fluoride Doping

We propose and demonstrate a temperature and humidity sensor based on a fluorinated polyimide film and fiber Bragg grating. Moisture-induced film expansion or contraction causes an extra strain, which is transferred to the fiber Bragg grating and leads to a humidity-dependent wavelength shift. The hydrophobic fluoride doping in the polyimide film helps to restrain its humidity hysteresis and provides a short moisture breathing time less than 2 min. Additionally, another cascaded fiber Bragg grating is used to exclude its thermal crosstalk, with a temperature accuracy of ±0.5 °C. Experimental monitoring over 9000 min revealed a considerable humidity accuracy better than ±3% relative humidity, due to the sensitized separate film-grating structure. The passive and electromagnetic immune sensor proved itself in field tests and could have sensing applications in the electro-sensitive storage of fuel, explosives, and chemicals.

scholarly journals Highly Sensitive Temperature and Humidity Sensor Based on Carbon Nanotube-Assisted Mismatched Single-Mode Fiber Structure

Micromachines ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 521 ◽  
Author(s):  
Yuan ◽  
Qian ◽  
Liu ◽  
Wang ◽  
Yu
Keyword(s):  
Carbon Nanotube ◽  
Humidity Sensor ◽  
Single Mode ◽  
Small Region ◽  
Single Mode Fiber ◽  
Fiber Structure ◽  
Humidity Sensing ◽  
Highly Sensitive ◽  
Temperature And Humidity ◽  
Stable Performance

Here we report on a miniaturized optical interferometer in one fiber based on two mismatched nodes. The all-fiber structure shows stable performance of temperature and humidity sensing. For temperature sensing in large ranges, from 40 to 100 °C, the sensor has a sensitivity of 0.24 dB/°C, and the adjusted R-squared value of fitting result reaches 0.99461 which shows a reliable sensing result. With carbon nanotubes coating the surface of the fiber, the temperature sensitivity is enhanced from 0.24561 to 1.65282 dB/°C in a small region, and the performance of humidity sensing becomes more linear and applicable. The adjusted R-squared value of the linear fitting line for humidity sensing shows a dramatic increase from 0.71731 to 0.92278 after carbon nanotube coating, and the humidity sensitivity presents 0.02571 nm/%RH.

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