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智能弹性体 

 实现机械系统的实时监控和预测性维护

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作者:Michael Tester | 2026年5月 

核心要点一览 

  • 智能弹性体在具有定义安装点的单一组件中集成了阻尼和传感功能;
  • 全集成电子设备仅需一根外部电缆,降低了系统复杂性;
  • 超薄传感器设计(<1 毫米)使其能够集成到空间受限的应用中;
  • 可在力范围内缩放——从几克到几公斤不等;
  • 利用弹性体实现多参数传感和先进的状态监测;

在许多工业系统中,关键负荷发生在传统传感器根本无法可靠运行的地方。 考虑移动设备中的承重支架:暴露在振动、冲击、潮湿和污染中——但仍被要求为控制和优化提供精确的测量数据。

传统的传感器装置在这些环境中举步维艰。 它们需要空间、保护和精确的定位,往往增加了复杂性而不是解决问题。 这正是智能弹性体从根本上改变方法的地方。

通过将传感直接嵌入功能材料中,集成传感器的弹性体将无源组件转变为智能系统元件。 与其向系统添加传感器,不如让系统本身成为传感器——从而实现机械系统的实时监控、提高可靠性以及带有嵌入式传感器的可扩展预测性维护

挑战

现代机械系统需要持续洞察力、振动和环境条件。然而,在这些系统中实现可靠的传感仍然是一项重大的工程挑战。

传统解决方案(如称重传感器或外部加速度计)存在以下局限性:

  • 安装限制:体积大、刚性强的组件需要特定的安装空间
  • 对振动的敏感性:机械冲击可能会降低精度或损坏传感器
  • 环境暴露:灰尘、湿气和温度波动需要保护外壳
  • 系统复杂性:独立的传感和阻尼组件增加了集成难度


这些局限性在测量负载路径监测时尤为关键,因为力必须在传输点被精确捕获。

即使是替代方案(如导电弹性体或印刷传感器),由于漂移、鲁棒性低或过载电阻有限,也显得不足。

解决方案

集成传感器的弹性体通过将传感功能直接嵌入弹性体组件本身来克服这些局限性。 这种方法实现了机械功能与数据采集的无缝结合。

这项创新的核心是专有的负载传感弹性体 (LSE) 技术

1. One Component, Fully Integrated

The elastomer simultaneously acts as:

  • A damping element
  • A sensor for force and system behavior

All sensing electronics are fully integrated into the compact, ultra-thin sensor, meaning:

  • Only one external interface (cable) is required
  • No separate electronics or external signal conditioning is needed
  • The installation position is inherently defined by the component itself

This significantly reduces integration complexity and ensures consistent measurement positioning.

The result is a true smart elastomer – a structural component that generates data.
 

2. Ultra-Thin and Scalable Design

A key differentiator is the extremely thin sensor architecture, enabling integration where conventional sensors cannot be used:

  • Sensor thickness can be below 1 mm, allowing embedding into tight geometries 
  • Ideal for applications with limited installation space or strict weight constraints

In addition, the technology is highly scalable:

  • Force measurement ranges from a few grams to several kilograms and beyond
  • Geometry and size can be adapted to specific application requirements

This flexibility makes it suitable for both high-load industrial systems and precision applications.
 

3. Accuracy Through Integrated Algorithms

The sensor includes integrated algorithms and signal processing, directly embedded within the system.

These algorithms:

  • Compensate for hysteresis, drift, and non-linearity
  • Improve measurement accuracy and repeatability
  • Enable stable data acquisition under dynamic loads

This ensures reliable real-time monitoring in mechanical systems, even in highly variable conditions.
 

4. Multi-Parameter Sensing and Functional Capabilities

Beyond force measurement, the system enables true multi-parameter sensing, including:

  • Force (static and dynamic)
  • Vibration and acceleration (up to ±16 g)
  • Angular motion (gyroscopic sensing up to ±2000 dps)
  • Temperature
  • Cycle counts(e.g., rotations, oscillations, repetitive motion)
  • Overload detection, with threshold-based warnings

This enables advanced condition monitoring with elastomers, combining multiple sensing functions into a single compact component.
 

5. Built for Harsh Operating Conditions

The elastomer encapsulation provides intrinsic protection against:

  • Moisture and humidity (up to 95% rH)
  • Dust and contamination
  • Mechanical shock and vibration
  • Temperature variations

This makes the technology ideal for applications:

  • With continuous vibration
  • In outdoor or industrial environments
  • Where conventional sensors would require complex protection
     

6. Flexible Usage: Embedded or Standalone

While optimized for integration into elastomer components, the sensor can also be used:

  • As a standalone sensor element
  • Integrated into other mechanical structures
  • Bonded into assemblies without full elastomer overmolding

This flexibility extends its applicability beyond classical elastomer use cases.
 

7. Manufacturing Expertise: Surviving Elastomer Processing

A critical challenge in developing sensor-integrated elastomers is the integration process itself. Elastomer manufacturing – particularly vulcanization – exposes components to high temperatures, high pressures, and chemically aggressive environments.

For conventional electronics, this process typically leads to:

  • As a standalone sensor element
  • Integrated into other mechanical structures
  • Bonded into assemblies without full elastomer overmolding

Angst+Pfister has developed proprietary design and process know-how that enables sensors to withstand vulcanization without loss of functionality.

This includes:

  • Specialized sensor architectures adapted to elastomer processing
  • Robust encapsulation strategies
  • Controlled manufacturing processes ensuring repeatability

This capability is a key enabler for reliable embedded sensors in mechanical components and a major technological differentiator.

结果与性能验证 

Parameter Conventional Sensors Smart Elastomers (LSE-Based)
Installation space High Minimal
System architecture Multiple components Single integrated component
Overload resistance Limited Up to 500-1000% FS
Measurement response time Moderate <50 ms
Measurement capabilities Single parameter Multi-parameter sensing option

 

Beyond component-level specifications, performance is validated through application-specific testing. Angst+Pfister operates dedicated in-house test rigs, enabling:

  • Validation under real operating conditions (load, vibration, temperature)
  • Calibration and optimization for specific applications
  • Verification of long-term behavior, including cycle counts and overload scenarios
     

This ensures that solutions are not only conceptually sound but tested and proven functional before deployment.

Use Case: Load Monitoring in Mobile Equipment

Challenge:
A transport system requires continuous monitoring of load forces under dynamic conditions. The system operates under vibration, shock, and contamination, with limited installation space.

Solution:
A load sensing elastomer replaces the conventional mount. The integrated system:

  • Measures force directly within the load path
  • Detects vibration and system behavior
  • Tracks cycle counts (e.g., repetitive movement)
  • Provides overload warnings when thresholds are exceeded

Result:

  • Accurate measurement under real operating conditions
  • Simplified integration with a single component
  • Reduced failure points and maintenance effort
  • Continuous data enables predictive maintenance with embedded sensors

From Concept to Component: Available Sensor Platforms

To translate this technology into real-world applications, several sensor platforms are available:

  • APF-SEB Series (Force Sensing Elastomer)
    • Integrated force measurement up to 200 N
    • IP67 protection
    • Combines damping and sensing in one component
       
  • APV-SEB Series (Vibration & Multi-Parameter Sensor)
    • 3-axis acceleration, gyroscope, and temperature sensing
    • Shock resistance up to 10,000 g
    • Suitable for advanced multi-parameter sensing
       
  • APF-UF Series (Ultra-Thin Force Sensor)
    • Sensor thickness under 1 mm
    • Designed for highly constrained installation environments
    • High overload capability up to 1000% FS

When to Use Smart Elastomers

Sensor-integrated elastomers are particularly valuable in applications where:

  • Measurements are required under continuous vibration
  • Installation space is limited or weight-sensitive
  • Systems operate in harsh environments (moisture, dust, shock)
  • Load path monitoring is required directly within structural components
  • Cycle counts or motion tracking are relevant
  • Overload detection is required for safety or system protection

Video Q&A

What does it take to transform a passive elastomer into a fully functional sensing element?

In this video, Michael Tester, Head of Sensor Design Engineering at Angst+Pfister, explains how smart elastomers integrate sensing, processing, and protection into a single compact unit – and how this enables scalable predictive maintenance with embedded sensors across industries.

Conclusion

Smart elastomers represent a fundamental shift in mechanical system design. By integrating sensing directly into functional materials, they eliminate the need for separate sensors while improving robustness and simplifying system architecture.

With features such as:

  • Ultra-thin, scalable design
  • Fully integrated electronics with a single interface
  • Multi-parameter sensing and embedded algorithms
  • Reliable performance in harsh environments

combined with proprietary manufacturing expertise and validation through in-house test rigs – these systems deliver not only integration advantages but also proven reliability under real-world conditions.

As systems continue to evolve toward higher integration and intelligence, sensor-integrated elastomers will play a key role in enabling efficient, data-driven engineering solutions.

常见问题(FAQ)

强效清洁化学品和高温会使许多弹性体材料发生劣化,导致硬化、化学变质以及密封力下降。

适用。PTFE密封件可采用符合食品级标准的材料制造,既满足卫生设计要求,又能提供可靠的动态性能。 

PTFE具有固有的低摩擦系数特性,可减少密封界面产生的热量与磨损。在涉及摩擦学性能较差介质的应用中,密封材料的低摩擦特性尤为有利。

硅胶填充设计可防止颗粒侵入,而全封装弹簧方案能在CIP/SIP过程中抵御化学物质侵蚀。 

在动态、强腐蚀性或高温环境中,PTFE密封件通常具有更长的使用寿命和更稳定的性能。 

可以。PTFE密封件既提供标准设计,也可根据具体操作和卫生要求进行工程定制。 

 


关于作者

迈克尔·泰斯特(Michael Tester)是安格斯+普菲斯特传感器与动力公司(Angst+Pfister Sensors and Powers)的传感器设计工程主管,在将先进技术与材料科学相结合方面拥有超过10年的专业经验。他专长于开发集成传感器平台,将被动机械组件转化为适用于恶劣工业环境的智能数据生成系统。

 

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