Make Weighing Easier
TG Load Cells: Make Weighing Easier

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TG Load Cells:
Make Weighing Easier
Widely used in various occasions requiring force measurement and process monitoring.

How to Prevent Moisture on the Load Cell Gauge? What Are the Methods?

load cell gauges are commonly used for both static and dynamic measurements. After considering the effects of gravity and air buoyancy at the location of use, a force sensor is used to measure the mass by converting one of the measured quantities (mass) into another measured quantity (output). Therefore, the accuracy, consistency, and reliability of load cell gauges are their primary responsibilities. So, how do raw materials and manufacturing processes affect the accuracy, consistency, and reliability of load cell gauges? At first glance, it seems that a traditional load cell gauge is simply composed of aluminum or hardened steel components, strain gauges, compensating resistors, interconnections, filling materials, and coatings or coatings. So, how much do two load cell gauges with the same appearance differ?

Let's assume that a high-quality industrial load cell gauge has: good moisture resistance-moisture is the cause of load cell gauge failure; durability-conservative design also requires the sensor to withstand more than 100,000 cycle loads without fatigue failure; compliance with published technical specifications-including linear, hysteresis, and temperature compensation; consistency of sensor performance between batches of products. Not all sensor manufacturers produce sensors that meet these performance requirements. It is now possible to explain why load cell gauges produced by different manufacturers may appear to be the same in appearance but differ in performance, reliability, and consistency.

The role of durability and moisture resistance of the load cell gauge

The role of durability

The basic design of load cell gauges is to determine their durability, and they must withstand 100,000 measurements without mechanical fatigue causing failure. Use computer finite element analysis to optimize the design of load cell gauges, and do not make stress concentration in any part of the sensors, so that the stress is uniformly concentrated on the position of the strain gauge. This sophisticated design can ensure that the load cell gauge can withstand overload.

Moisture-resistant function

The strain gauge in the load cell gauge is easily affected by moisture. Moisture entering the strain gauge may cause unstable performance of the load cell gauge or even overall failure.

Moisture-resistant design of the load cell gauge

  • Encapsulate the strain gauge-cover the strain gauge with waterproof material.

  • Control the environment or create a low-humidity environment-prevent moisture from entering the sealed aluminum load cell.

  • High-quality composite waterproof seal-keep the components of the sensor unaffected throughout the entire working temperature, and have low permeability.

  • Weld sealing, glass, and metal cable connectors are sometimes effective.

  • High-quality load cell gauge cables tightly bind the conductor and the shell to prevent moisture from entering the interior through the cable core.

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