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The real face of load cells - structural molecular profiling
- Categories:Technical knowledge
- Time of issue:2018-01-24 16:13
(Summary description)Load cell is a recent industrial application of an automated measurement tool, the development to date has been the type as well as brand more dazzling, but in the final analysis, the load cell material is nothing more than the following six kinds of combination made of:
The real face of load cells - structural molecular profiling
(Summary description)Load cell is a recent industrial application of an automated measurement tool, the development to date has been the type as well as brand more dazzling, but in the final analysis, the load cell material is nothing more than the following six kinds of combination made of:
- Categories:Technical knowledge
- Time of issue:2018-01-24 16:13
- Views:
Load cell is a recent industrial application of an automated measurement tool, the development to date has been the type as well as brand more dazzling, but in the final analysis, the load cell material is nothing more than the following six kinds of combination made of:
First, the patch adhesive material:
Weighing sensor resistance strain gauge patch with adhesive mainly using two-component polymer epoxy series adhesive, polymer chemical products performance and the physical and chemical indicators of each component is closely related, such as purity, the structure and size of the molecular chain, storage time, the ratio of components, molecular modification, mixing mode, mixing maturation using time, curing time, curing temperature, additives and percentage of factors.
Secondly, the conductor material of the load cell:
Conductor wire is still part of the force measurement sensor composition, the metal material of the load cell wire, due to the use of household appliances wire, quality differences are tangible. After all, the wire is the bridge power supply, signal output, long line excitation voltage compensation pathway, silver-plated wire is certainly better than copper wire conduction effect, copper wire is certainly better than aluminum wire conduction effect, its role speaks for itself. With a variety of high frequency, radio waves and other increasing interference, the excellent shielding of load cells is also an important way to protect signal stability. In addition, environmental erosion, insect and rodent infestation, fire retardant, etc. also need to sensor protection layer of material corrosion and insect protection fire and explosion-proof, and even the need to use armor protection, load cell casing protection and other methods.
Third, the material of the sealant:
In the initial stage of welding technology and equipment is not sufficient load cell, are using special silicone rubber sealant series. Silicone rubber has long-term chemical stability, therefore, corrosion, moisture, aging resistance, insulation and other excellent performance, has long been the product of choice for all sealants.
Fourthly, wire sealing materials and methods:
Each component of the load cell will affect the ultimate technical performance of the sensor, some force sensors simply use a simple fixed way to avoid the movement of the sensor wire and damage to the sensor's electronic circuit fixed, some conductive distance is very short load cell even just rely on the rubber seal fixed. But the larger size and weight of the load cell, if there is no appropriate wire fixing or sealing way, is the most vulnerable to failure of the load cell bottleneck. In particular, the material of the fasteners and the strength of the fastening will also have an impact on the final technical performance of the load cell when a sealing head is added to fix the wires. Observers have found that very few fasteners are used to install the use of sealing adhesives, which avoid the residual stresses caused by relying on the fastening force to fix them, and do not create leaks due to insufficient fastening force.
Fifthly, strain gauges and resistive element materials:
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