xyy/ASTM-D7896-19TransientHot-Wire-Method
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xyy
2026-06-03 19:52:57 +08:00
parent 9cf9eb8558
commit 1c073df913
3 changed files with 5 additions and 4 deletions
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4
Models/AppConfig.cs
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@@ -93,6 +93,6 @@ public class CalibrationCoefficients
public ushort ResistanceCoefficient { get; set; } public ushort ResistanceCoefficient { get; set; }
//public double ThermalConductivityCorrection { get; set; } = 69;//乙二醇 //public double ThermalConductivityCorrection { get; set; } = 69;//乙二醇
public double ThermalConductivityCorrection { get; set; } = 100;//乙二醇 public double ThermalConductivityCorrection { get; set; } = 28;//乙二醇
public double ThermalDiffusivityCorrection { get; set; } = 19.9; public double ThermalDiffusivityCorrection { get; set; } = 0.59;
} }

2
Services/LanScpiSocket.cs
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@@ -94,7 +94,7 @@ namespace ASTM_D7896_Tester.Services
await SendCommandAsync($"VOLT:DC:RANG {DefaultVoltageRange}"); await SendCommandAsync($"VOLT:DC:RANG {DefaultVoltageRange}");
// 3. 设置积分时间 0.02PLC（最快速度） // 3. 设置积分时间 0.02PLC（最快速度）
await SendCommandAsync("VOLT:DC:NPLC 0.02"); await SendCommandAsync("VOLT:DC:NPLC 0.1");
// 4. 关闭自动归零（提高速度） // 4. 关闭自动归零（提高速度）
await SendCommandAsync("VOLT:DC:ZERO:AUTO OFF"); await SendCommandAsync("VOLT:DC:ZERO:AUTO OFF");

3
ViewModels/D7896ViewModel.cs
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@@ -91,7 +91,7 @@ public partial class D7896ViewModel : ObservableObject
private const double EulerGamma = 0.5772156649; // 欧拉常数 private const double EulerGamma = 0.5772156649; // 欧拉常数
//private const double WireRadius = 0.00003; // 铂丝半径 (0.03 mm) //private const double WireRadius = 0.00003; // 铂丝半径 (0.03 mm)
[ObservableProperty] private double _sampleDensity = 1000.0; // 新增，密度默认值1000 kg/m³（水） [ObservableProperty] private double _sampleDensity = 1000.0; // 新增，密度默认值1000 kg/m³（水）
int samples = 1000; // 1秒 * 1000点/秒 int samples = 400; // 1秒 * 1000点/秒
double heatingDuration = 1; // 加热时间 0.8 秒（需与您的加热脉冲宽度一致） double heatingDuration = 1; // 加热时间 0.8 秒（需与您的加热脉冲宽度一致）
double totalDuration = 2; // 总采样时间（加热 + 冷却） double totalDuration = 2; // 总采样时间（加热 + 冷却）
public D7896ViewModel() public D7896ViewModel()
@@ -579,6 +579,7 @@ public partial class D7896ViewModel : ObservableObject
lambda = _config.TestParameters.FixedLambda; lambda = _config.TestParameters.FixedLambda;
Logger.Log($"使用固定 lambda={lambda:F6} W/(m·K)"); Logger.Log($"使用固定 lambda={lambda:F6} W/(m·K)");
} }
lambda *= _config.TestParameters.CalibrationCoefficients.ThermalDiffusivityCorrection;
Logger.Log($"constantCurrent(avg)={avgCurrent:E6} A, avgResistance={avgResistance:F6} Ω, powerPerLength={powerPerLength:E6} W/m, 斜率 B = {slope:F5}"); Logger.Log($"constantCurrent(avg)={avgCurrent:E6} A, avgResistance={avgResistance:F6} Ω, powerPerLength={powerPerLength:E6} W/m, 斜率 B = {slope:F5}");
// 计算热扩散率 // 计算热扩散率