103 lines
5.0 KiB
C#
103 lines
5.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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using System.Threading.Tasks;
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using ASTM_D7896_Tester.Models;
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using ASTM_D7896_Tester.ViewModels;
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namespace ASTM_D7896_Tester.Services;
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public class ReportService
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{
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private readonly string _outputDirectory;
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public ReportService(string outputDirectory)
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{
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_outputDirectory = outputDirectory;
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if (!Directory.Exists(_outputDirectory))
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Directory.CreateDirectory(_outputDirectory);
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}
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public async Task<string> GenerateReportAsync(
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string sampleId,
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double testTemperature,
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List<MeasurementResult> measurements,
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double avgLambda,
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double avgAlpha,
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double avgVhc,
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TestParameters parameters,
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Dictionary<string, object> extraParams = null)
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{
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var sb = new StringBuilder();
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sb.AppendLine("=".PadRight(80, '='));
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sb.AppendLine("ASTM D7896-19 瞬态热线法热导率测试报告");
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sb.AppendLine("=".PadRight(80, '='));
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sb.AppendLine($"样品ID: {sampleId}");
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sb.AppendLine($"测试日期: {DateTime.Now:yyyy-MM-dd HH:mm:ss}");
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sb.AppendLine($"测试温度: {testTemperature:F2} °C");
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sb.AppendLine($"铂丝参数: 长度={parameters.PlatinumWireLength * 1000:F1} mm, 直径={parameters.PlatinumWireDiameter * 1000:F3} mm");
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sb.AppendLine($"重复测量次数: {parameters.MeasurementCount}");
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sb.AppendLine($"测量间隔: {parameters.IntervalSeconds} 秒");
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if (extraParams != null)
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{
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sb.AppendLine();
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sb.AppendLine("----- 测试条件与合规性确认 (依据ASTM D7896-19) -----");
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if (extraParams.ContainsKey("SampleVolume"))
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sb.AppendLine($"样品体积 (章节7.5): {extraParams["SampleVolume"]} mL");
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if (extraParams.ContainsKey("BubbleRemoved"))
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sb.AppendLine($"气泡清除确认 (章节7.6): {((bool)extraParams["BubbleRemoved"] ? "是" : "否")}");
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if (extraParams.ContainsKey("UsePressure") && (bool)extraParams["UsePressure"])
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sb.AppendLine($"加压测试 (附录A2): 压力 = {extraParams["PressureValue"]} kPa");
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else if (extraParams.ContainsKey("UsePressure"))
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sb.AppendLine($"加压测试 (附录A2): 未加压（液体蒸气压≤33.8kPa）");
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if (extraParams.ContainsKey("IsCleanConfirmed"))
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{
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string cleaner = extraParams.ContainsKey("CleanerName") ? extraParams["CleanerName"]?.ToString() ?? "" : "";
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sb.AppendLine($"采样池清洁确认 (章节7.1): {((bool)extraParams["IsCleanConfirmed"] ? "是" : "否")}，清洁人: {cleaner}");
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}
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if (extraParams.ContainsKey("AmbientCalibrated"))
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sb.AppendLine($"环境温度校准 (章节8.1): {((bool)extraParams["AmbientCalibrated"] ? $"是，温度 {extraParams["AmbientTemperature"]} °C" : "否")}");
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if (extraParams.ContainsKey("PlatinumCompatible"))
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sb.AppendLine($"铂反应性确认 (章节1.4): {((bool)extraParams["PlatinumCompatible"] ? "液体与铂兼容" : "未确认")}");
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if (extraParams.ContainsKey("LiquidReactivityNote") && !string.IsNullOrWhiteSpace(extraParams["LiquidReactivityNote"]?.ToString()))
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sb.AppendLine($"备注: {extraParams["LiquidReactivityNote"]}");
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}
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sb.AppendLine();
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sb.AppendLine("序号\t热导率 (W/m·K)\t热扩散率 (×10⁻⁶ m²/s)\t体积热容 (kJ/m³·K)");
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sb.AppendLine("----\t----------------\t------------------------\t-------------------");
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foreach (var m in measurements)
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{
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sb.AppendLine($"{m.Index}\t{m.ThermalConductivity:F5}\t\t{m.ThermalDiffusivity:F5}\t\t\t{m.VolumetricHeatCapacity:F2}");
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}
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sb.AppendLine();
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sb.AppendLine("平均值:");
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sb.AppendLine($" 热导率 λ: {avgLambda:F5} W/m·K");
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sb.AppendLine($" 热扩散率 α: {avgAlpha:F5} ×10⁻⁶ m²/s");
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sb.AppendLine($" 体积热容 VHC: {avgVhc:F2} kJ/m³·K");
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// 章节10：精密度声明
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sb.AppendLine();
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sb.AppendLine("----- 精密度与偏倚声明 (章节10) -----");
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sb.AppendLine("本测量结果可参考ASTM D7896-19标准中给出的重复性限值进行评定。");
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sb.AppendLine("例如：对于热导率，重复性限值(r)约为平均值的2-5%（依样品而定）。");
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sb.AppendLine("本软件不对测量结果的符合性做出直接判定，用户应参考标准原文进行评估。");
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sb.AppendLine();
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sb.AppendLine("备注：本报告依据ASTM D7896-19标准生成，数据由瞬态热线法测量系统自动采集。");
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sb.AppendLine("=".PadRight(80, '='));
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string fileName = $"D7896_Report_{sampleId}_{DateTime.Now:yyyyMMdd_HHmmss}.txt";
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string fullPath = Path.Combine(_outputDirectory, fileName);
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await File.WriteAllTextAsync(fullPath, sb.ToString(), Encoding.UTF8);
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return fullPath;
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}
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} |