GB/T 6147-2025 精密电阻合金热电动势率测试方法

ICS

77.040.01；17.200.20

CCS

H21

中华人民共和国国家标准

GB/T6147—2025

代替GB/T6147—2005

精密电阻合金热电动势率测试方法

Testmethodforthermoelectricpowerofprecisionresistancealloys

2025-04-25发布2025-11-01实施

国家市场监督管理总局

发布

国家标准化管理委员会

GB/T6147—2025

目次

前言

Ⅲ

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1

范围

1

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2

规范性引用文件

1

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3

术语和定义

1

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4

原理

1

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5

测试装置

1

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5.1

组成

1

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5.2

标准温度计

2

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5.3

电测仪器

2

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5.4

转换开关

2

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5.5

恒温槽

2

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5.6

冰点恒温器

3

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5.7

标准电极

3

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6

试样及制备

3

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6.1

试样要求

3

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6.2

试样制备

3

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7

测试环境

3

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8

测试程序

3

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9

数据处理

4

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10

精密度和准确度

4

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11

测试报告

4

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Ⅰ

GB/T6147—2025

前言

本文件按照GB/T1.1—2020《标准化工作导则第1部分：标准化文件的结构和起草规则》的规

定起草。

本文件代替GB/T6147—2005《精密电阻合金热电动势率测试方法》，与GB/T6147—2005相

比，除结构调整和编辑性改动外，主要技术变化如下：

a）增加了方法提要（见第4章）；

b）更改了测试装置要求（见第5章，2005年版的第5章）；

c）更改了试样要求（见6.1，2005年版的4.1）；

d）更改了测试方法中恒温槽温度变化要求（见8.4，2005年版的7.4）；

e）增加了极性判定规则（见9.4）。

请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。

本文件由中国机械工业联合会提出。

本文件由全国仪表功能材料标准化技术委员会（SAC/TC419）归口。

本文件起草单位：重庆材料研究院有限公司、重庆川仪自动化股份有限公司金属功能材料分公司、

深圳中广核工程设计有限公司、大亚湾核电运营管理有限责任公司、重庆电子科技职业大学、深圳市业

展电子有限公司、中广核惠州核电有限公司、江苏华鑫合金有限公司、成都凯天电子股份有限公司、

浙江泰索科技有限公司、山东力群合金材料有限公司。

本文件主要起草人：孟刚、何伦英、田广政、胡紫阳、陈蜀志、陈容、郑雅文、黄美良、陈国壹、

王方军、李凤、袁鑫明、陈洁、陆炅、李广锋、沙洪伟、张力群、朱亚辉、吴洋、王勇、蒋栋、

司恒远、何湘杰、付月明、唐茂。

本文件及其所代替文件的历次版本发布情况为：

—1985年首次发布为GB/T6147—1985，2005年第一次修订；

—本次为第二次修订。

Ⅲ

GB/T6147—2025

精密电阻合金热电动势率测试方法

1范围

本文件描述了精密电阻合金热电动势率的测试方法，包括原理、测试装置、试样及制备、测试环

境、测试程序、数据处理、精密度和准确度以及测试报告。

本文件适用于在-65℃～250℃范围内，精密电阻合金热电动势率的测试。其他金属材料在此温度

范围内的热电动势率的测试参照执行。

2规范性引用文件

下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文

件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用

于本文件。

GB/T2903铜﹘铜镍（康铜）热电偶丝

JB/T6819.2仪表材料术语测温材料

JB/T6819.3仪表材料术语电阻材料、导电材料和电接点材料

3术语和定义

JB/T6819.2和JB/T6819.3界定的以及下列术语和定义适用于本文件。

3.1

热电动势率thermoelectricpower

假定热电动势与温度呈线性关系时，每1℃的温度差所产生的热电动势。

4原理

将试样与标准电极（铂丝或铜丝）配对成热电偶，在（t~t）温度区间每变化1℃所产生的热电动

0

势，即为此合金的对铂（或对铜）热电动势率。

5测试装置

5.1组成

测试装置主要由标准温度计、电测仪器、转换开关、恒温槽、冰点恒温器和标准电极等组成。测试

装置示意图见图1。

1