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@@ -68,8 +68,11 @@ public class TestParameters
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public double FitStartTime { get; set; } = 0.01; // 默认0.35秒,避开早期扰动
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public double FitEndTime { get; set; } = 0.1;
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//public double FitStartTime { get; set; } = 0.01; // 默认0.35秒,避开早期扰动
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//public double FitEndTime { get; set; } = 0.1;
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public double FitStartTime { get; set; } = 0.20; // 默认0.35秒,避开早期扰动
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public double FitEndTime { get; set; } = 0.60;
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@@ -89,6 +92,6 @@ public class CalibrationCoefficients
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public ushort TemperatureCoefficient { get; set; }
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public ushort ResistanceCoefficient { get; set; }
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public double ThermalConductivityCorrection { get; set; } = 0.606;
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public double ThermalConductivityCorrection { get; set; } = 36.8;
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public double ThermalDiffusivityCorrection { get; set; } = 19.9;
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}
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@@ -91,8 +91,8 @@ public partial class D7896ViewModel : ObservableObject
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private const double EulerGamma = 0.5772156649; // 欧拉常数
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//private const double WireRadius = 0.00003; // 铂丝半径 (0.03 mm)
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[ObservableProperty] private double _sampleDensity = 1000.0; // 新增,密度默认值1000 kg/m³(水)
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int samples = 1000; // 1秒 * 1000点/秒
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double heatingDuration =1; // 加热时间 0.8 秒(需与您的加热脉冲宽度一致)
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int samples = 800; // 1秒 * 1000点/秒
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double heatingDuration = 1; // 加热时间 0.8 秒(需与您的加热脉冲宽度一致)
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double totalDuration = 2; // 总采样时间(加热 + 冷却)
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public D7896ViewModel()
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{
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@@ -342,8 +342,8 @@ public partial class D7896ViewModel : ObservableObject
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if (dynamicR0 == 2.45) // 仍为默认值,说明基线无效
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{
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double sumR0 = 0; int cnt = 0;
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// 改用第 10 到 19 点(共10个点),避开前10个点的干扰
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for (int j = 10; j < Math.Min(20, ustd.Length); j++)
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// 改用第 2~5 点(索引 2,3,4,5)
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for (int j = 2; j < Math.Min(6, ustd.Length); j++)
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{
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if (ustd[j] > 0.01 && upt[j] > 0.01)
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{
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@@ -354,7 +354,7 @@ public partial class D7896ViewModel : ObservableObject
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if (cnt > 0)
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{
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dynamicR0 = sumR0 / cnt;
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Logger.Log($"使用加热段第10~19点计算 R0 = {dynamicR0:F6} Ω");
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Logger.Log($"使用加热段第2~5点计算 R0 = {dynamicR0:F6} Ω");
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}
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}
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@@ -550,6 +550,8 @@ public partial class D7896ViewModel : ObservableObject
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double exponent = intercept / slope + EulerGamma;
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if (exponent > 30) exponent = 30;
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double alpha = (_config.TestParameters.PlatinumWireDiameter / 2 * _config.TestParameters.PlatinumWireDiameter / 2 / 4.0) * Math.Exp(exponent);
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alpha *= _config.TestParameters.CalibrationCoefficients.ThermalConductivityCorrection;
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if (_config.TestParameters.UseFixedAlpha)
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{
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alpha = _config.TestParameters.FixedAlpha;
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@@ -25,10 +25,10 @@
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"TestParameters": {
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"MeasurementCount": 10,
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"IntervalSeconds": 30,
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//"PlatinumWireLength": 0.056, //铂丝长度(单位:米)
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//"PlatinumWireDiameter": 0.00006,
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"PlatinumWireLength": 0.41, //铂丝长度(单位:米)
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"PlatinumWireDiameter": 0.00018,
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"PlatinumWireLength": 0.1250, //铂丝长度(单位:米)
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"PlatinumWireDiameter": 0.00006,
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//"PlatinumWireLength": 0.41, //铂丝长度(单位:米)
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//"PlatinumWireDiameter": 0.00021,
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"ReportOutputPath": "Reports\\",
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"DefaultSampleVolume": 40.0,
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"DefaultPressure": 0.0,
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