行业组件数据 · 2026

参考电极连接点

Reference junction in glass electrodes for pH measurement, providing stable electrical potential reference in industrial processes.

技术定义与适配语境
典型 参考电极连接点 会按材料、尺寸公差、适配关系和失效风险在 化学制造 中评估。

A critical component in glass electrode pH sensors that maintains a stable reference potential by allowing ionic contact between the internal reference solution and the sample solution through a porous junction, enabling accurate pH measurement in various industrial applications.

组件规格

定义
A critical component in glass electrode pH sensors that maintains a stable reference potential by allowing ionic contact between the internal reference solution and the sample solution through a porous junction, enabling accurate pH measurement in various industrial applications.
工作原理
The reference junction creates a stable electrochemical potential by allowing controlled diffusion of ions between the internal reference electrolyte and the sample solution through a porous ceramic, glass, or polymer membrane, completing the electrical circuit for pH measurement while minimizing contamination and potential drift.
材料
Typically made from porous ceramics (alumina)glass fritsor specialized polymers (PTFEpolyethylene) with controlled pore sizes (0.1-10 μm) to regulate ion flow and prevent clogging.
pH Range
0-14
Flow Rate
0.1-1.0 μL/hour
Pore Size
0.1-10 μm
Junction Type
Ceramic, Glass Frit, Polymer
Pressure Rating
0-10 bar
Temperature Range
-5°C to 130°C
Electrical Resistance
1-10 kΩ
标准
ISO 10523DIN 19266ASTM E70

行业分类与别名

参考电极连接点 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Suspended solids or precipitates in sample solution->Clogged junction leading to unstable readings and slow response->Regular cleaning with appropriate solutions, use of protective sleeves, installation of pre-filters
Chemical attack from aggressive media->Degradation of junction material and contamination of reference electrolyte->Selection of chemically resistant junction materials, use of protective barriers, regular inspection
Improper storage or handling->Dehydration of internal electrolyte and junction damage->Proper storage in storage solution, careful handling procedures, staff training

工业生态与工程逻辑

0
Junction clogging from suspended solids
1
Chemical contamination of reference electrolyte
2
Potential drift due to junction aging
3
Mechanical damage during installation/cleaning
4
Temperature-induced measurement errors

合规与检测

tolerance
±0.02 pH units for standard applications, ±0.01 pH units for precision measurements
test method
ISO 10523 for pH measurement, ASTM E70 for electrode testing, manufacturer calibration procedures

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采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the purpose of the reference junction in a glass electrode?

The reference junction provides a stable electrical reference potential by allowing ionic contact between the internal reference solution and the sample, completing the electrochemical circuit for accurate pH measurement.

How often should reference junctions be maintained or replaced?

Reference junctions typically require cleaning every 1-3 months and replacement every 6-12 months depending on application conditions, sample composition, and measurement frequency.

What causes reference junction failure?

Common failures include clogging from suspended solids, chemical attack from aggressive samples, dehydration of the internal electrolyte, and mechanical damage from improper handling.

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URN:CNFX:ME:UNIT:REFERENCE_JUNCTION