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生生生生生生生生 孙孙孙 孙孙 孙孙孙 3/27/2015 孙孙孙 孙孙孙孙孙孙孙孙孙孙孙孙孙

The experiment of the temperature control sensor

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Page 1: The experiment of the temperature control sensor

生物系统检测与控制

孙谷浩 高源 王佳昀

3/27/2015

非线性传感器的线性化处理方法及应用

Page 2: The experiment of the temperature control sensor

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热敏电阻原理

Page 3: The experiment of the temperature control sensor

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热敏电阻原理由于线性性较差,因此需要在对电阻进行处理

Page 4: The experiment of the temperature control sensor

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热敏电阻原理因此可得

Page 5: The experiment of the temperature control sensor

根据热敏电阻的 Rt 图,运用 matkab 计算 Ra,Rb 的值Ra=3.2KRb=19K

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Page 6: The experiment of the temperature control sensor

加入 Ra Rb 之后 得到y = -0.0994x + 13.562

R² = 0.97939

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Page 7: The experiment of the temperature control sensor

我们利用 电压表制作了一个测温电路

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Page 8: The experiment of the temperature control sensor

在此基础上制作了一个温控电路

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Page 9: The experiment of the temperature control sensor

关于参数的计算

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Page 10: The experiment of the temperature control sensor

关于参数的计算

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Page 11: The experiment of the temperature control sensor

关于开关与稳压器的使用

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Page 12: The experiment of the temperature control sensor

拟合与测试

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将我们的电路进行模拟,可以得到以上结果

y = 0.01x + 0.0022R² = 0.99998

10 20 30 40 50 60 70 800

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8热敏 -感温

温度(℃)

电压表读数(

V)

Page 13: The experiment of the temperature control sensor

Thank You

3/27/2015