行业组件数据 · 2026

探头/传感元件

A probe or sensing element is a critical component in level sensors that detects and measures liquid or solid material levels in industrial containers and vessels.

技术定义与适配语境
典型 探头/传感元件 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。

A probe or sensing element is the primary detection component in level sensors and indicators, responsible for converting physical level changes into measurable electrical signals. It operates through various principles such as capacitance, conductivity, ultrasonic, or pressure differentials to provide accurate level measurements in industrial applications. These elements are engineered to withstand harsh industrial environments including temperature variations, chemical exposure, and mechanical stress.

组件规格

定义
A probe or sensing element is the primary detection component in level sensors and indicators, responsible for converting physical level changes into measurable electrical signals. It operates through various principles such as capacitance, conductivity, ultrasonic, or pressure differentials to provide accurate level measurements in industrial applications. These elements are engineered to withstand harsh industrial environments including temperature variations, chemical exposure, and mechanical stress.
工作原理
The working principle varies by sensor type: Capacitive probes detect level changes through capacitance variations between the probe and container wall; Conductive probes use electrical conductivity between probe electrodes; Ultrasonic probes emit sound waves and measure reflection time; Pressure-based probes measure hydrostatic pressure at the bottom of the container. All principles convert physical level parameters into proportional electrical signals for processing and display.
材料
Stainless steel (AISI 316L304)HastelloyTeflon coatingceramic insulationpolypropylene housinggold-plated contacts for corrosion resistance. Materials selected based on chemical compatibility with measured media.
Accuracy
±0.5% of full scale
Output Signal
4-20mA, 0-10V, HART, Modbus
Response Time
< 100ms
Pressure Rating
Up to 100 bar
Measurement Range
0-20m
Ingress Protection
IP67/IP68
Process Connection
G1/2, NPT 1/2, flange mounting
Operating Temperature
-40°C to 150°C
标准
ISO 9001IEC 61508ATEXIECExDIN EN 60529

行业分类与别名

探头/传感元件 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

Chemical attack on probe material->Corrosion leading to measurement inaccuracy or complete failure->Select chemically compatible materials, apply protective coatings, implement regular inspection schedules
Coating wear or damage->Electrical leakage or short circuits in conductive probes->Use abrasion-resistant coatings, implement mechanical protection, establish preventive maintenance
Temperature cycling stress->Material fatigue and cracking->Design with thermal expansion compensation, use temperature-resistant materials, implement temperature monitoring

工业生态与工程逻辑

0
Material incompatibility causing corrosion
1
Coating damage leading to measurement errors
2
Electrical interference in signal transmission
3
Mechanical damage from process media
4
Temperature extremes beyond specification limits

合规与检测

tolerance
±0.25% to ±1.0% depending on application class
test method
ISO 11631 for performance testing, IEC 61000 for EMC compliance, pressure testing per EN 837, material certification per ASTM/ASME standards

制造该组件的工厂

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 capacitive and conductive probes?

Capacitive probes measure level through dielectric constant changes and work with both conductive and non-conductive liquids, while conductive probes require electrically conductive media and measure level through current flow between electrodes.

How often should level sensor probes be calibrated?

Typically every 6-12 months depending on application severity, but follow manufacturer recommendations and process requirements. Critical applications may require more frequent calibration.

Can the same probe work for different liquids?

Only if materials are chemically compatible and dielectric properties are similar. Material compatibility charts must be consulted before switching media.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
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请求制造能力信息: 探头/传感元件

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URN:CNFX:ME:UNIT:PROBE_SENSING_ELEMENT