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Method for very early diagnosis of tons cell "sub-health".<br>
[Abstract] This post presents a principle and approach of early and also accurate diagnosis of the "sub-health" problem of tons cells.

[Key words] early; diagnosis; "sub-health"; load cell; approach.

I. Introduction.

With the constant growing of enterprise technological change, electronic considering instruments have been used a growing number of widely in process flow, procedure control, as well as settlement and also measurement. The resistance pressure kind lots cell (hereinafter referred to as the sensing unit) is a kind of metal elastic body as the force.

- Gauging instruments with electrical conversion function, as well as sensors are the core parts of electronic considering tools. Due to the integral qualities of the sensing unit itself.

And also in a facility and also harsh environment, its failures are characterized by variety as well as intricacy, as well as the failure rate is additionally higher. Present.

Changing the sensing unit in the field judgment will not just impact the normal production rhythm, however also trigger the wind, the heating system, the defective item as well as the failure to compute.

The amount, and so on, seriously impact the financial advantages of the venture. SAINTBOND hope that there is a method to progress the sensor failure.

Get advised.


After years of exploration, there is a way to precisely detect whether the tons cell is poor or otherwise (shortened as.

" Sub-health") to boost the campaign of upkeep and also attain the purpose of "absolutely no failing" maintenance.

2. Phenomena and concepts.

The load cell includes techniques such as auto mechanics, electrical energy, as well as chemistry. The source of the mistake is complicated as well as it is hard to court. Development in failure.

It is indeed not simple to identify ahead of time that the load cell remains in a "sub-healthy" condition.

The faults of the lots cell can be separated right into three groups according to the concept: A, brought on by flexible body; B, triggered by electrical shock as well as circuit.

的; C, created by the pasting process. However regardless of what kind of failings will certainly be shown through the unbalanced outcome.

The size of the absolutely no point outcome of the lots cell is a representation of the quality of the production procedure as well as the top quality of the design, and it is additionally a potential failing.

Among the most obvious indications.

The zero factor result of the tons cell is too huge, which positions a prospective danger to the integrity of the sensor. The adjustment of zero point will additionally make.

On this basis, after expedition, it is located that the vacant range output and also no-load outcome signal modifications of the load cell. At the same time, it additionally clarifies the output of the empty scale. The change of the result of the empty range is a focused reflection of 2 important technical signs of the tons cell zero point and also linearity.

The load cell remains in the "sub-healthy" problem. Both most common and most sensitive sensations are the two most delicate as well as usual attributes: one is that the weighing sign often changes no during use, however it can immediately return to zero without influencing the evaluating. The second is that when the standard weight is loaded throughout the usage duration, there is often a slight over-tolerance, however it can be restored to normal by adjusting the potentiometer. One of these phenomena suggests that there are "sub-healthy" sensors in the scale. Just how to locate as well as identify?

1. Monitoring.

( 1) Tracking of empty ranges with lots cells. Under real evaluating conditions, the load-bearing device evaluates the body (or load-bearing weighing.

The frame) is in place, and also the mechanical parts remain in area. Action the outcome worth of each sensor of the range under the excitation voltage, and also edit it by setting.

Great number, make a good record. This is the outcome worth of the sensing unit's vacant range.

( 2) No-load monitoring of the load cell. Under real considering conditions, position each sensing unit of the range.

No-load state, gauge the outcome value of each sensor under the excitation voltage, code the number according to the position, as well as make a record. This is the transmission.

No-load output value of the sensor. At the same time, the input insusceptibility of the sensor is measured, and the output resistance and the no-load outcome are compared with the technological requirements provided by the maker at the manufacturing facility.

( 3) After calibrating the scale as well as loading with the common weight, it is best to determine each of the ranges under the problem of conventional weight loading.

Just the result value of the sensing unit, number it according to the placement, make a document and also show the standard weight worth. This is the sensor's common weight outcome.

worth.

2. SAINTBOND .

Identify the moment void of the following dimension according to the location of use, celebration, setting as well as various other conditions. For each and every sensing unit.

The vacant range outcome (or standard weight output), no-load result for tracking dimension.

( 1) Utilize the manufacturing gap to regularly determine the empty scale outcome and also no-load outcome of each sensor of the scale.

The problems can determine the standard weight result of each sensor under the same standard weight. Make a document as well as compare it with the original record.

( 2) When the sensor's vacant range output (or typical weight outcome) and also no-load result change substantially, the monitoring time gap ought to be.

Reduce, the monitoring density need to be enhanced; when the result is steady for a long period of time, the tracking void can be properly expanded.

( 3) The very same tons is compared on its own at various points (areas) of the range, as well as the resistance is surpassed, and the vacant scale of each sensing unit is determined.

Outcome, no-load result, make a document, and also contrast with the initial record.

This method is frequently used under busy evaluating conditions to understand the operating standing of the scale.

( 4) When the sensing unit's "sub-healthy" sensation shows up, it is required to boost the outcome of the vacant scale tracking each sensor (or.

Basic weight output) The gauged thickness of no-load result, make a document, and contrast it with the original record.

( 5) For digital sensors, utilize the same approach to get in the empty scale internal code value, vacant inner code value, as well as common weight inner code worth.

Conduct monitoring and monitoring, and make excellent records.



The long-lasting stability of the absolutely no point of the lots cell is a requirement technological index in the integrity and security of the sensing unit. On this basis, after exploration, it is found that the empty scale output and also no-load output signal modifications of the load cell. At the very same time, it additionally describes the result of the empty range. The modification of the result of the empty scale is a concentrated representation of two important technological indicators of the tons cell no factor and also linearity.

One of these phenomena shows that there are "sub-healthy" sensing units in the scale.

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