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In view of the actual situation which the oil pump daily operation management mainly depended on manual inspection, this paper presents an oil pump temperature monitoring system based on Internet of things by using ARM-S3C2410 chip and DS18B20 temperature sensor. By installing the DS18B20 sensors in front of and behind the oil pump motor bearings; this monitoring system can collect the real-time temperature...
A miniature digital temperature sensor with the ZY cut quartz crystal tuning fork resonators was developed. The quartz crystal tuning fork resonators have the characteristic that the resonance frequency changes by the external temperature, which achieves high sensitivity and high-speed response and frequency stability by a sample structure. The quartz crystal tuning fork resonators are square cross...
In this paper, a highly sensitive temperature sensor based on quartz tuning fork resonators is reported. The temperature sensor is configured by ZY (110deg/10deg) Cut quartz crystal wafer based bulk acoustic wave (BAW) tuning fork resonators whose operating frequency is at 31 KHz. The ideal thermo-sensitive ZY cut for quartz tuning fork resonators is analyzed with the theory. The characterization...
This paper presents the results from investigations of thermal sensitivity, thermal response time and long-term stability of a newly miniaturized design of thermal sensitive quartz tuning fork resonator working at flexural mode with ZY-cut at fundamental frequency of 32 kHz. Special attention is given to the methodology and equipment for calibration of quartz tuning fork temperature sensor. To obtain...
A temperature sensing technique taking thermal sensitive quartz tuning fork vibration arm as sensitive components and output of digital frequency is presented. In the design of quartz tuning fork temperature sensor, selecting the cut type of quartz tuning fork according to the each anisotropic nature of quartz tuning fork, so that there is a linear relationship between quartz tuning fork frequency...
A novel high-performance sensor technology for measuring and monitoring temperature is described. This type of temperature sensor using a quartz tuning fork resonator is inherently insensitive to noise because the output is a frequency shift cause by an external temperature. The output can easily be converted into a digital signal and directly connected to a microcontroller without an A-D converter...
Piezoelectric resonators have widely been utilized not only for time keeping devices but also for temperature measurement sensors. In order to obtain a temperature sensor having low power consumption, low cost, fast response, high sensitivity and high precision, resonance frequency of quartz tuning fork crystal for use in temperature sensor was analyzed by the finite element method (FEM). FEM was...
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