行业组件数据 · 2026

连接线

Connection wires for temperature sensor probes transmit electrical signals from sensing elements to control systems.

技术定义与适配语境
典型 连接线 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

Connection wires are essential electrical components that establish conductive pathways between the temperature sensing element of a probe and external measurement or control instrumentation. These wires carry low-voltage signals (typically millivolt or microamp ranges) representing temperature readings, ensuring minimal signal degradation, electrical noise interference, and thermal error introduction. They consist of insulated conductors with specific electrical properties, shielding configurations, and termination interfaces designed for industrial temperature measurement applications.

组件规格

定义
Connection wires are essential electrical components that establish conductive pathways between the temperature sensing element of a probe and external measurement or control instrumentation. These wires carry low-voltage signals (typically millivolt or microamp ranges) representing temperature readings, ensuring minimal signal degradation, electrical noise interference, and thermal error introduction. They consist of insulated conductors with specific electrical properties, shielding configurations, and termination interfaces designed for industrial temperature measurement applications.
工作原理
Connection wires operate on the principle of electrical conductivity, transmitting analog or digital signals generated by temperature sensing elements (such as thermocouples, RTDs, or thermistors) to data acquisition systems. The wires maintain signal integrity through proper insulation, shielding against electromagnetic interference (EMI), and compensation for thermal effects. In thermocouple applications, extension wires with matching thermoelectric properties prevent measurement errors at junction points.
材料
Conductor: Coppercopper alloys (constantanchromelalumel)nickelor nickel alloys. Insulation: PTFE (Teflon)FEPPFAsilicone rubberfiberglassor ceramic beads for high-temperature applications. Shielding: Braided copperaluminum foilor composite layers. Jacket: PVCpolyurethaneor stainless steel braid for mechanical protection.
Voltage Rating
300V AC/DC
Conductor Gauge
AWG 20-28
Temperature Range
-200°C to +1000°C
Insulation Resistance
>100 MΩ/km
Shielding Effectiveness
>90% at 100 MHz
标准
ISO/IEC 60584DIN 43710IEC 60751ASTM E230

行业分类与别名

连接线 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

Insulation breakdown from excessive temperature or chemical exposure->Short circuit or signal loss->Use insulation materials rated for the operating environment (e.g., PTFE for high temps, FEP for chemicals); implement regular insulation resistance testing
Poor termination or connector corrosion->Increased contact resistance causing measurement errors->Use gold-plated connectors for corrosion resistance; apply proper crimping or soldering techniques; schedule periodic connector inspections

工业生态与工程逻辑

0
Signal degradation due to improper shielding
1
Thermal drift from inadequate insulation
2
Mechanical failure from vibration or bending fatigue
3
Chemical corrosion in aggressive environments

合规与检测

tolerance
Signal transmission error < ±0.1% of full scale; insulation resistance > 100 MΩ at 500V DC
test method
Continuity testing with multimeter; insulation resistance test per IEC 60512; thermoelectric verification per ASTM E230 for thermocouple wires

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来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

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 difference between thermocouple extension wires and compensation cables?

Thermocouple extension wires have the same thermoelectric properties as the thermocouple itself and are used to extend the probe to distant instruments without introducing errors. Compensation cables use different, cheaper materials that mimic the thermoelectric behavior only within a limited temperature range, typically for ambient conditions.

How does shielding affect temperature measurement accuracy?

Shielding reduces electromagnetic interference (EMI) from motors, power lines, or radio frequencies that can induce noise in low-voltage signals, causing reading fluctuations or offsets. Proper grounding of the shield at one end prevents ground loops while maintaining signal integrity.

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初步技术归类
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URN:CNFX:ME:UNIT:CONNECTION_WIRES