行业组件数据 · 2026

称重传感器/应变片

Precision force measurement device converting mechanical strain into electrical signals for tension control.

技术定义与适配语境
典型 称重传感器/应变片 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 load cell or strain gauge is a transducer that measures force or weight by converting mechanical deformation (strain) into an electrical signal. In tension sensing mechanisms, it precisely monitors tensile forces applied to materials during processing, manufacturing, or testing operations. These devices utilize the piezoresistive effect where electrical resistance changes proportionally to applied strain, enabling accurate real-time force measurement and control.

组件规格

定义
A load cell or strain gauge is a transducer that measures force or weight by converting mechanical deformation (strain) into an electrical signal. In tension sensing mechanisms, it precisely monitors tensile forces applied to materials during processing, manufacturing, or testing operations. These devices utilize the piezoresistive effect where electrical resistance changes proportionally to applied strain, enabling accurate real-time force measurement and control.
工作原理
Operates on the Wheatstone bridge principle where strain gauges (resistive elements) are bonded to a deformable body. When force is applied, the body deforms, causing strain gauges to change resistance. This unbalances the bridge circuit, producing a millivolt output signal proportional to the applied force. The signal is amplified and converted for display or control systems.
材料
Strain gauge: Constantan or Karma alloy foil on polyimide substrateLoad cell body: Aluminum alloy (for low capacity)alloy steel (for high capacity)or stainless steel (for corrosive environments)Bonding adhesive: Epoxy or cyanoacrylateProtective coating: Siliconepolyurethaneor epoxy sealant.
Creep
<0.03% of rated output/30min
Output
2mV/V typical
Accuracy
±0.03% to ±0.5% of full scale
Capacity
50g to 500kN
IP Rating
IP65 to IP68
Cable Length
3-10m standard
Zero Balance
±1% of rated output
Response Time
<1ms
Excitation Voltage
5-15V DC
Operating Temperature
-20°C to +80°C
标准
ISO 376DIN 51221ASTM E74OIML R60

行业分类与别名

称重传感器/应变片 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

Mechanical overload beyond rated capacity->Permanent deformation or fracture of sensing element->Install mechanical stops, use overload protected designs, implement force limit alarms
Moisture penetration through seals->Bridge circuit shorting or corrosion->Use IP68 rated enclosures, regular seal inspection, desiccant protection
Temperature fluctuations->Zero drift and sensitivity changes->Temperature compensation circuits, controlled environment, regular calibration

工业生态与工程逻辑

0
Overload damage
1
Moisture ingress
2
Electromagnetic interference
3
Temperature drift
4
Mechanical fatigue
5
Signal cable damage
6
Ground loop issues
7
Vibration effects

合规与检测

tolerance
±0.1% of reading for standard industrial applications, ±0.03% for precision measurement
test method
Deadweight calibration, comparison calibration using reference standards, electrical characteristic testing per ISO 376

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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 difference between load cells and strain gauges?

Strain gauges are sensing elements that measure strain, while load cells are complete transducers that incorporate strain gauges within a mechanical structure to measure force or weight directly.

How often should load cells be calibrated?

Calibration frequency depends on usage: annually for standard applications, quarterly for critical processes, or after any mechanical shock or overload event.

Can load cells measure compression and tension?

Yes, most load cells are bidirectional and can measure both compression and tension forces, though some specialized designs are optimized for specific force directions.

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URN:CNFX:ME:UNIT:LOAD_CELL_STRAIN_GAUGE