Notes

Technique for very early diagnosis of tons cell "sub-health".<br>
[Abstract] This post presents a concept and approach of precise and very early diagnosis of the "sub-health" problem of lots cells.

[Keyword phrases] early; diagnosis; "sub-health"; lots cell; method.

I. Intro.

With the continual strengthening of business technical transformation, digital weighing tools have actually been used more and also extra widely in procedure circulation, process control, as well as settlement and dimension. The resistance strain kind tons cell (hereinafter referred to as the sensing unit) is a kind of metal elastic body as the pressure.

- Gauging tools with electrical conversion function, and also sensing units are the core parts of digital weighing tools. Due to the integral attributes of the sensor itself.

And also in a complicated and also extreme atmosphere, its failures are defined by diversity as well as complexity, and also the failing price is likewise higher. Existing.

Replacing the sensor in the field judgment will not just influence the typical manufacturing rhythm, yet even trigger the wind, the heater, the defective product and the failing to calculate.

The quantity, etc, seriously influence the financial benefits of the venture. Maintenance workers wish that there is a way to advance the sensing unit failing.

Get reminded.

After years of expedition, there is a means to precisely identify whether the load cell misbehaves or otherwise (shortened as.

" Sub-health") to improve the campaign of maintenance as well as accomplish the purpose of "absolutely no failure" maintenance.

2. Phenomena and concepts.

The lots cell involves disciplines such as auto mechanics, electricity, as well as chemistry. The source of the fault is complicated and it is hard to judge. load cell rail way in failure.

It is without a doubt hard to diagnose ahead of time that the load cell remains in a "sub-healthy" problem.


The faults of the load cell can be separated right into three groups according to the concept: A, caused by flexible body; B, created by electric shock and also circuit.

的; C, triggered by the pasting procedure. Yet regardless of what type of failings will certainly be shown via the unbalanced result.

The size of the zero factor outcome of the lots cell is a representation of the high quality of the manufacturing procedure and the high quality of the style, as well as it is additionally a potential failure.

Among the most noticeable symptoms.

The no point outcome of the load cell is as well big, which positions a prospective danger to the integrity of the sensing unit. The modification of absolutely no factor will likewise make.

On this basis, after expedition, it is discovered that the empty range outcome as well as no-load result signal changes of the lots cell. At the exact same time, it also explains the outcome of the vacant range. The adjustment of the outcome of the empty range is a concentrated representation of 2 crucial technical indicators of the lots cell zero point as well as linearity.

The lots cell is in the "sub-healthy" condition. Both most usual and also most delicate sensations are both most sensitive and also usual features: one is that the considering indicator usually changes absolutely no during use, yet it can automatically go back to no without impacting the evaluating. ab54s-fact load cell is that when the typical weight is filled during the usage period, there is often a slight over-tolerance, yet it can be brought back to normal by readjusting the potentiometer. One of these sensations shows that there are "sub-healthy" sensing units in the range. How to locate as well as identify?

1. Monitoring.

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

The frame) is in place, as well as the mechanical parts are in location. Measure the outcome value of each sensing unit of the range under the excitation voltage, as well as edit it by position.

Good number, make a good document. This is the output worth of the sensor's vacant range.

( 2) No-load surveillance of the lots cell. Under actual weighing conditions, position each sensor of the scale.

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

No-load outcome worth of the sensing unit. At the very same time, the input resistance of the sensor is measured, as well as the result insusceptibility and the no-load result are contrasted with the technical specs given by the producer at the factory.

( 3) After adjusting the range and packing with the typical weight, it is best to measure each of the ranges under the problem of typical weight loading.

Just the result worth of the sensor, number it according to the position, make a record as well as suggest the standard weight value. This is the sensing unit's conventional weight outcome.

value.

2. Tracking.

Figure out the time void of the next measurement according to the place of use, occasion, atmosphere and also various other problems. For each and every sensor.

The empty range output (or typical weight result), no-load outcome for tracking measurement.

( 1) Make use of the production void to regularly measure the empty range result and also no-load outcome of each sensor of the range.

The conditions can measure the common weight outcome of each sensing unit under the exact same conventional weight. Make a document and contrast it with the original document.

( 2) When the sensing unit's empty range result (or basic weight result) and also no-load result modification greatly, the tracking time gap must be.

Reduce, the monitoring thickness need to be raised; when the output is secure for a long period of time, the tracking space can be appropriately expanded.

( 3) The very same lots is contrasted by itself at different points (areas) of the scale, and also the resistance is surpassed, and the empty scale of each sensing unit is measured.

Outcome, no-load output, make a document, as well as contrast with the original document.

This method is generally used under busy weighing conditions to comprehend the operating standing of the range.

( 4) When the sensor's "sub-healthy" phenomenon appears, it is necessary to enhance the outcome of the empty range tracking each sensing unit (or.

Standard weight outcome) The measured density of no-load outcome, make a document, as well as compare it with the original document.

( 5) For digital sensors, use the same approach to go into the vacant range interior code worth, empty interior code worth, and also basic weight interior code worth.

Conduct monitoring and monitoring, and also make good documents.



The long-term security of the absolutely no factor of the tons cell is a requirement technical index in the integrity and also security of the sensing unit. On this basis, after exploration, it is found that the empty range result and also no-load output signal adjustments of the load cell. At the very same time, it additionally clarifies the output of the empty scale. The change of the output of the vacant scale is a focused representation of 2 crucial technical signs of the lots cell zero factor and also linearity.

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

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