▲ Solution ContentCopy

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"children": [ { "type": "heading", "level": 2, "children": [ { "type": "span", "value": "什么是电压？" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "电压是两点之间的电位差-由于水和电之间可以类比，有时也称为张力或压力。" } ] }, { "type": "heading", "level": 3, "children": [ { "type": "span", "value": "交流电压与直流电压" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "取决于承载它的电流，电压可以是交流或直流。 在直流系统中，电流是单向的-它从不改变方向，即，它不改变极性。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "在交流系统中，电流不断交替变化方向，在正方向上越过0V，然后转向并在负方向上再次越过0V。 您可以在图中看到直流和交流电压（和电流）。" } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1, "base64": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAoHBwgHBgoICAgFCgoFBQwFBQUFBREJCgUMFxMZGBYTFhUaHysjGh0oHRUWJDUlKC0vMjIyGSI4PTcwPCsxMi8BCgsLBQUFEAUFEC8cFhwvLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vL//AABEIABgAGAMBIgACEQEDEQH/xAAVAAEBAAAAAAAAAAAAAAAAAAAAB//EABQQAQAAAAAAAAAAAAAAAAAAAAD/xAAVAQEBAAAAAAAAAAAAAAAAAAAAAv/EABQRAQAAAAAAAAAAAAAAAAAAAAD/2gAMAwEAAhEDEQA/AKcAlQAAAAAD/9k=", "height": 800, "sizes": "(max-width: 800px) 100vw, 800px", "src": "https://www.datocms-assets.com/53444/1656934666-ac-dc-voltage.png?auto=format&fit=max&w=800", "srcSet": "https://www.datocms-assets.com/53444/1656934666-ac-dc-voltage.png?auto=format&dpr=0.25&fit=max&w=800 200w,https://www.datocms-assets.com/53444/1656934666-ac-dc-voltage.png?auto=format&dpr=0.5&fit=max&w=800 400w,https://www.datocms-assets.com/53444/1656934666-ac-dc-voltage.png?auto=format&dpr=0.75&fit=max&w=800 600w,https://www.datocms-assets.com/53444/1656934666-ac-dc-voltage.png?auto=format&fit=max&w=800 800w,https://www.datocms-assets.com/53444/1656934666-ac-dc-voltage.png?auto=format&dpr=1.5&fit=max&w=800 1200w,https://www.datocms-assets.com/53444/1656934666-ac-dc-voltage.png?auto=format&dpr=2&fit=max&w=800 1600w", "webpSrcSet": "", "width": 800, "alt": "AC DC voltage", "title": "AC DC voltage" } } ] }, { "__typename": "FeatureRecord", "id": "122562249", "anchor": "types", "video": "", "content": { "value": { "schema": "dast", "document": { "type": "root", "children": [ { "type": "heading", "level": 2, "children": [ { "type": "span", "value": "电压的种类" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "有几种不同的电压测量值，例如峰值，峰峰值，平均值，RMS值和交流或直流电压。在图中可以看到它们之间的差异。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "平均电压" }, { "type": "span", "value": "是特定时间段内的平均值。对于纯正弦信号，平均值将为零。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "RMS（均方根）电压值" }, { "type": "span", "value": "是定义连续波形的平方函数值的算术平均值的平方根。它是在某个点定义交流电压的常用值，它代表的电流与欧姆负载下的直流电压相同。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "峰值电压" }, { "type": "span", "value": "描述了一段时间内的电压极值。在数据手册中，输入的峰值电压或直流电压的含义相同。要计算正弦波的RMS值，必须将峰值除以2的平方根。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "峰峰比" }, { "type": "span", "value": "显示一个时期内正负峰的幅度。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "波峰因数" }, { "type": "span", "value": "是峰值幅度除以波形的RMS值。" } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1, "base64": 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800w,https://www.datocms-assets.com/53444/1656934663-voltage-types.png?auto=format&dpr=1.5&fit=max&w=800 1200w,https://www.datocms-assets.com/53444/1656934663-voltage-types.png?auto=format&dpr=2&fit=max&w=800 1600w", "webpSrcSet": "", "width": 800, "alt": "Voltage types", "title": "Voltage types" } } ] }, { "__typename": "FeatureRecord", "id": "122562252", "anchor": "measurement", "video": "", "content": { "value": { "schema": "dast", "document": { "type": "root", "children": [ { "type": "heading", "level": 2, "children": [ { "type": "span", "value": "用Dewesoft进行电压测量" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "屏幕界面显示了DewesoftX软件中SIRIUS HV高压放大器的典型设置。在电压通道设置的屏幕界面中，通道设置分为两部分：" } ] }, { "type": "list", "style": "bulleted", "children": [ { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "放大器设置： " }, { "type": "span", "value": "屏幕左侧专用于放大器设置-顶部是放大器设置，底部是输入信号的实时预览。" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "传感器设置：" }, { "type": "span", "value": "屏幕的右侧是传感器设置，显示测量的量，单位转换，比例等。" } ] } ] } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "在屏幕界面中，正弦波的RMS值为224.924 V，峰峰值为±309.XXXV。在这种情况下，电压直接注入HV放大器-不涉及传感器或转换器，因此无需缩放（请参阅屏幕的右下角）。例如，当使用非常高的电压传感器时（例如将信号除以1000），可以在此处输入该因数以显示实际电压。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "了解有关交流和直流电压测量的更多信息：" } ] }, { "type": "list", "style": "bulleted", "children": [ { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "Dewesoft 电压测量在线培训课程" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "数采应用中的电压测量" } ] } ] } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1, "base64": 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"当信号电平高于预期时，它们会被ADC（模数转换器）削波。 这会导致错误的测量，这意味着必须重新进行测试。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "但是，Dewesoft独特的DualCoreADC®技术消除了此类问题。 每个通道放大器都有两个ADC，这些ADC始终测量输入信号的高和低增益。 这样可以确保传感器测量范围的全部潜力，并防止信号被削波。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "Dewesoft的DualCoreADC®技术可实现超过130 dB的信噪比和超过160 dB的动态范围-比24位系统高20倍，而噪声却少20倍。" } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 2.2912844036697244, "base64": 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"", "width": 800, "alt": "SIRIUS DualCoreADC amplifier schematic", "title": "SIRIUS DualCoreADC amplifier schematic" } } ] }, { "__typename": "FeatureRecord", "id": "122562272", "anchor": "galvanic-isolation", "video": "https://youtu.be/d71V0pjZbZ0", "content": { "value": { "schema": "dast", "document": { "type": "root", "children": [ { "type": "heading", "level": 2, "children": [ { "type": "span", "value": "电流隔离-噪声信号和共模问题" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "信号中不必要的修改或干扰“噪声”是进行测量时常见的问题。 出现噪声的原因多种多样，例如与其他正在产生电场的设备接近或出现布线问题。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "Dewesoft隔离输入可防止信号噪声和干扰。 它们具有高电流通道间和通道对地隔离，包括传感器激励和其他线路-信号链中的噪声除外。." } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "高隔离度还可以测量高压电势或共模电压，其中较小的信号位于较大的直流偏移量之上。" } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1, "base64": 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}, { "type": "paragraph", "children": [ { "type": "span", "value": "例如，如果您的电压是一个10 kHz的正弦波，但您每秒仅采样一个样本，那么显然，所得到的记录将是错误的。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "在每次采样之间，将经过10,000个正弦波。 产生的“信号”看起来像波形，但完全是错误的-实际信号的“别名”。 您会收到看起来像是信号的“信号”，当然这是不对的。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "Dewesoft的快速sigma-delta ADC技术是防止混叠的合适方法。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "了解更多有关混叠的信息。" } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1, "base64": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAoHBwgHBgoICAgFCgoFBQwFBQUFBREJCgUMFxMZGBYTFhUaHysjGh0oHRUWJDUlKC0vMjIyGSI4PTcwPCsxMi8BCgsLBQUFEAUFEC8cFhwvLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vL//AABEIABgAGAMBIgACEQEDEQH/xAAVAAEBAAAAAAAAAAAAAAAAAAAAB//EABQQAQAAAAAAAAAAAAAAAAAAAAD/xAAVAQEBAAAAAAAAAAAAAAAAAAAAAv/EABQRAQAAAAAAAAAAAAAAAAAAAAD/2gAMAwEAAhEDEQA/AKcAlQAAAAAD/9k=", 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"122562300", "anchor": "applications", "video": "", "content": { "value": { "schema": "dast", "document": { "type": "root", "children": [ { "type": "heading", "level": 2, "children": [ { "type": "span", "value": "电压数据记录仪和应用" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "Dewesoft为各种电压记录应用提供了一系列具有不同输入电压范围的不同电压数据记录器：" } ] }, { "type": "list", "style": "bulleted", "children": [ { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "工业和实时控制应用" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "恶劣环境下的电压记录" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "高压记录" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "高通道计数电压记录应用" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "功率分析" 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"root", "children": [ { "type": "heading", "level": 2, "children": [ { "type": "span", "value": "高压数据记录仪" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "Dewesoft高压数据记录仪用于直接测量和监视高压信号。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "我们的高压放大器和高压信号调节器可以使用CAT III 600 V和CAT II 1000 V防护等级的隔离器测量高达±2000V的直接在线电压。" } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1.0450685826257349, "base64": "data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAoHBwgHBhAIEggLFQ0OFxIYDQ0VEREPFg0YFxUZGBYfFhUaHysjGh0oHRUWJDUlKC0vMjIyGSI4PTcwPCsxMi8BCgsLDg0PEA0RHC8iFhwvLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vLy8vL//AABEIABcAGAMBIgACEQEDEQH/xAAZAAACAwEAAAAAAAAAAAAAAAAABgEDBAX/xAAgEAABAwMFAQAAAAAAAAAAAAAAAgMRAQQFEjFBQlET/8QAFwEBAQEBAAAAAAAAAAAAAAAAAgEDAP/EABoRAQACAwEAAAAAAAAAAAAAAAABEgIREwP/2gAMAwEAAhEDEQA/AMa7pEblrNw3omRLplHV+l9ck6hvkHXItGK+u2tO4CZe5ZyieSCx6ZO06ibdpPUtqw2ukQQBtWEYsljW/lMEgAqwj//Z", 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"anchor": "voltage-recorders", "video": "", "content": { "value": { "schema": "dast", "document": { "type": "root", "children": [ { "type": "heading", "level": 2, "children": [ { "type": "span", "value": "电压记录仪-独立或连接到主机" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "我们的电压数据采集设备可以配置为以完全独立的模式运行，甚至可以由内部电池电源供电。这些数采系统包括内置信号调节，数据存储，处理计算机，可选的LCD显示屏和可选的集成锂离子电池电源。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "另一方面，电压记录器可以通过以下标准，使用如下数据接口之一连接到任何主机或第三方EtherCAT主站：" } ] }, { "type": "list", "style": "bulleted", "children": [ { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "USB:" }, { "type": "span", "value": " 信号调节模块通过标准USB数据接口直接连接到计算机或笔记本电脑。 SIRIUS XHS等新型的记录仪设备使用USB-C连接，而标准记录仪使用USB 2.0连接。\n" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "Ethernet:" }, { "type": "span", "value": " 信号调理模块，使用RJ45连接器通过标准以太网接口直接连接到PC计算机或便携式计算机。" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "EtherCAT:" }, { "type": "span", "value": " 我们的EtherCAT电压信号调节模块可以连接到任何第三方EtherCAT主站，例如LabView，Beckoff Twincat，Clemessy Syclone，MTS TestSuite等。" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "XCP: " }, { "type": "span", "value": "我们还提供XCP电压记录仪，可以通过XCP协议记录电压或通过XCP协议发送记录仪数据。" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "CAN: " }, { "type": "span", "value": "我们还提供可以通过CAN总线协议记录电压或通过CAN协议发送记录器数据的CAN电压记录器。" } ] } ] } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1.2070116861435725, "base64": 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"value": "KRYPTON 和 SIRIUS Waterproof 是两条产品线，提供一系列防水，防震和防尘的AC和DC数据记录仪。 这两种产品系列的记录仪均提供" }, { "type": "span", "marks": [ "strong" ], "value": "IP67环保等级" }, { "type": "span", "value": "，可在" }, { "type": "span", "marks": [ "strong" ], "value": "-40至+ 85°C的温度范围内" }, { "type": "span", "value": "工作。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "请参阅 KRYPTON 放大器技术规格。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "请参阅 SIRIUS Waterproof 放大器技术规格。" } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1, "base64": 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"", "content": { "value": { "schema": "dast", "document": { "type": "root", "children": [ { "type": "heading", "level": 2, "children": [ { "type": "span", "value": "包括记录和信号处理软件" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "屡获殊荣的DewesoftX 数据采集软件随电压数据记录仪硬件一起提供，具有直观易用的界面。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "开箱即用的存储，触发和警报选项有多个，可以定义无限制的数学通道，例如公式，统计信息，过滤器等。 更多预建的可视化显示可用于数据可视化-记录器，数字显示，模拟显示和表格。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "DewesoftX还提供内置的报告生成和数据导出工具，这些工具允许PDF和Word报告生成并将数据导出为几种标准数据格式以进行进一步分析。" } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1.0491803278688525, "base64": 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[ { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "一直快速" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "一直慢速" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "快速触发" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": "快速触发，否则慢" } ] } ] } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "可以设置静态或降低采样率的选项。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "数据记录软件可以设置无限数量的开始和停止触发条件。 触发前和触发后时间可以以毫秒为单位设置-定义触发事件发生之前的存储时间。 记录器将数据保留在缓冲区中，直到发生触发事件，然后将这些数据存储在文件中。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "了解更多：" } ] }, { "type": "list", "style": "bulleted", "children": [ { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "value": 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{ "type": "span", "value": "对于长期或永久电压监视，Dewesoft提供电压数据记录器，该记录器能够在OPC UA协议支持下将数据存储到" }, { "type": "span", "marks": [ "strong" ], "value": "本地或云时间序列数据库" }, { "type": "span", "value": "中。 " } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "Historian 数据库软件包提供了用于长期数据存储的时间序列数据库。数据库可以位于本地，远程服务器或云中。该解决方案基于InfluxDB时间序列数据库开源项目。" } ] }, { "type": "paragraph", "children": [ { "type": "span", "value": "Historian提供了一些有用的历史数据功能：" } ] }, { "type": "list", "style": "bulleted", "children": [ { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "原始数据和降采样数据：" }, { "type": "span", "value": "原始数据始终存储在测量单元中，以进行深入分析。Historian将降采样长期数据存储在云数据库中。" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "数据安全性和重新传输：" }, { "type": "span", "value": "如果记录仪和数据库之间的连接丢失，则数据将安全地本地存储在测量单元上，并且当连接再次可用时，将重新传输到数据库。" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "趋势分析：" }, { "type": "span", "value": "随时可以从Historian数据库中调出历史数据并进行加载，并将其用于趋势分析以及深入分析和根本原因识别。" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "Web客户端：" }, { "type": "span", "value": "可从任何Web浏览器访问Web客户端界面，并且该界面是跨平台的并且与移动设备兼容。它提供了重要的数据及其随时间变化趋势的详尽概述。" } ] } ] }, { "type": "listItem", "children": [ { "type": "paragraph", "children": [ { "type": "span", "marks": [ "strong" ], "value": "警报和警报级别：" }, { "type": "span", "value": "警报和警报可以在每个显示器上设置，并与电子邮件/ SMS通知绑定。" } ] } ] } ] } ] } }, "blocks": [], "links": [] }, "images": [ { "responsiveImage": { "aspectRatio": 1, "base64": 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<li><b>隔离放大器：</b>隔离放大器与测量设备的外壳和主板隔离，可以安全可靠地运行。</li>\n</ul>" }, { "question": "隔离式电压放大器有什么作用？", "answer": "<p><span>使用隔离放大器消除了单端放大器和差分放大器的缺点。 它们与接地环路，共模电压，短路等无关。这些模块与测量设备的外壳和主板隔离。 高隔离电压还可以在电压峰值，故障等情况下安全可靠地运行。</span></p>" }, { "question": "测量高电压和低电压有区别吗？", "answer": "<p><span>答案是肯定的。 如果我们要测量ADC直接支持的范围内的电压，则测量非常简单。 但是，当测量微电压（&micro;V）范围内的非常小的电压或高达几千伏（kV）的非常高的电压时，则需要一个放大器来准备用于AD转换的信号。</span></p>" }, { "question": " 电压测量危险吗？", "answer": "<p><span>尽管高达1kV的电压测量相对简单，但在测量1600 VDC以上的电压时，事情往往会变得更加复杂，因为电压探头/分压器或电压传感器需要调整电压并将电压降低至适合放大器的水平，因此必不可少。 这样的测量很危险，因此应特别小心。</span></p>" }, { "question": " Dewesoft电压记录仪附带软件吗？", "answer": "<p>所有Dewesoft 电压数据记录仪均免费提供屡获殊荣的Dewesoft X 数据采集软件，该软件直观易用。 它提供了先进的存储，触发和警报功能以及几个数据可视化小部件，并包括一个用于数据分析的扩展数学库。</p>\n<p>数据可以使用内置的报告工具进一步打印或导出为几种标准文件格式，例如CSV，Excel，Matlab，FlexPro，Diadem，UNV等。</p>" } ], "relatedProducts": [ { "__typename": "ProductRecord", "slug": "obsidian", "title": "OBSIDIAN®", "subtitle": "数据记录器和嵌入式数据采集系统", "image": { "url": 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