5 float result=0.0; 6 7 result=resistance/NTC_NOMINAL_RESISTANCE; 8 result=(log(result)/NTC_NOMINAL_CONSTANT)+(1/(NTC_NOMINAL_TEMPERATURE+KELVIN_CONSTANT)); 9 temp=1/result-KELVIN_CONSTANT; 10 11 return temp; 12 } 分段线性法: 步骤如下: 采用excel 表格自动生成 C 语言中包含 AD 与温度的...
Here is how to check your NTC Exam Result. The NTC Licensure Exams result for theRecent Editionof the exams conducted couple of months ago has been released. This is as announced by the NTC On ItsFacebookPage. The NTC exams result for bothfresh candidatesandresit resultcan be accessed throu...
根据以上公式我们可以通过检测电阻来计算温度: 登录后复制/*公式法计算NTC温度值*/floatNTCTemperature(NTCObjectType *ntc,floatresistance){floattemp;floatresult=0.0; result=resistance/ntc->nominalR; result=(log(result)/ntc->nominalR)+(1/(ntc->nominalT+KELVIN_CONSTANT)); temp=1/result-KELVIN...
5 float result=0.0; 6 7 result=resistance/NTC_NOMINAL_RESISTANCE; 8 result=(log(result)/NTC_NOMINAL_CONSTANT)+(1/(NTC_NOMINAL_TEMPERATURE+KELVIN_CONSTANT)); 9 temp=1/result-KELVIN_CONSTANT; 10 11 return temp; 12 } 分段线性法: 步骤如下: 采用excel 表格自动生成 C 语言中包含 AD 与温度的...
temp=1/result-KELVIN_CONSTANT; returntemp; } (2)查表法 查表法顾名思义就是通过电阻分度表来获取温度区间,再做拟合。首先我们需要建立相应的表我们定义为数组。有了分度表实现也就简单了,但需要注意两端极限位置的处理。具体实现如下: /*查表法计算NTC温度值*/ ...
result=(log(result)/ntc->nominalR)+(1/(ntc->nominalT+KELVIN_CONSTANT)); temp=1/result-KELVIN_CONSTANT;returntemp; } 3、驱动的使用 接下来使用我们前面开发的驱动来实现NTC检测温度。首先需要使用NTCObjectType对象类型声明NTC对象变量。
(result & 0x80) { result <<= 1; result ^= 0x85; // x8 + x7 + x2 + x0 } else { result <<= 1; } } } return result; } uint16_t crc16(const uint8_t* buff, size_t size) { uint8_t* data = (uint8_t*)buff; uint16_t result = 0xFFFF; for (size_t i = 0; ...
15,查询方式做一次ADC, 切换通道后第一次转换结果丢弃. 避免采样电容的残存电压影响.Get_ADC12bitResult...
8 result=(log(result)/NTC_NOMINAL_CONSTANT)+(1/(NTC_NOMINAL_TEMPERATURE+KELVIN_CONSTANT)); 9 temp=1/result-KELVIN_CONSTANT; 10 11 return temp; 12 } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. (2)查表法 查表法顾名思义就是通过电阻分度表来获取温度区间,再做拟合。首先我们需要...
Fast, robust and easy to use: simply hold the air temperature probe in the environment being measured – and, thanks to the exposed sensor in the probe shaft, you will obtain the air temperature value after only a short response time. The measurement result can be optimized by moving the ...