| 测量小温差的石英数字传感器研究 |
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| 引用本文： | 羊梅君,洪文学. 测量小温差的石英数字传感器研究[J]. 传感器与微系统, 2004, 23(8): 20-21,24 |
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| 作者姓名： | 羊梅君 洪文学 |
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| 作者单位： | 1. 广州岭南教育集团,广东,广州,510663
2. 燕山大学,仪器科学与技术系,河北,秦皇岛,066004 |
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| 摘 要： | 一种测量小温差的石英数字式传感器,利用+5°Y切型石英晶片作为感温的10MHz振荡器敏感元件,利用AT切型石英晶体作为参考振荡器,差频后的信号作为数字传感器输出,其灵敏度达到0.001℃,经多段插值线性化后,测量3℃温差的误差<0.008℃。
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| 关 键 词： | 温差测量 石英传感器 数字传感器 |
| 文章编号： | 1000-9787(2004)08-0020-02 |
Study on quartz crystal digital transducer for measurement of small temperature difference |
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| YANG Mei-jun,HONG Wen-xue. Study on quartz crystal digital transducer for measurement of small temperature difference[J]. Transducer and Microsystem Technology, 2004, 23(8): 20-21,24 |
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| Authors: | YANG Mei-jun HONG Wen-xue |
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| Affiliation: | YANG Mei-jun~1,HONG Wen-xue~2 |
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| Abstract: | A quartz crystal digital transducer which is used to measure the small temperature difference is proposed.Two crystals in the transducer which are cut in +5°Y and AT have been applied as a temperature sensitive oscillator element(10 MHz) and reference oscillator element respectively.The difference frequency signal of two oscillators can be used as output of the digital transducer.The sensitivity of the transducer is 0.001 ℃ and the measurement error in temperature difference 3 ℃ is less than 0.008 ℃. |
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| Keywords: | temperature difference measurement quartz crystal transducer digital transducer |
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