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Method for very early diagnosis of load cell "sub-health".<br>
[Abstract] This short article introduces a principle as well as method of very early and precise medical diagnosis of the "sub-health" problem of lots cells.

[Keywords] early; medical diagnosis; "sub-health"; lots cell; technique.

I. Intro.

With the continual deepening of venture technological change, digital considering tools have actually been utilized a growing number of commonly in procedure circulation, procedure control, as well as settlement as well as dimension. The resistance strain type tons cell (hereinafter described as the sensor) is a kind of steel elastic body as the pressure.

- Gauging instruments with electric conversion feature, as well as sensing units are the core components of electronic evaluating instruments. analog load cell simulator to the intrinsic characteristics of the sensor itself.

And in a facility as well as extreme environment, its failings are defined by diversity and complexity, as well as the failing price is additionally greater. Present.

Replacing the sensor in the area judgment will certainly not just affect the regular manufacturing rhythm, yet even create the wind, the heater, the faulty product and also the failure to compute.

The quantity, etc, seriously impact the financial benefits of the enterprise. Upkeep employees really hope that there is a means to progress the sensor failing.

Get reminded.

After years of expedition, there is a means to properly diagnose whether the tons cell is poor or not (shortened as.

" Sub-health") to enhance the campaign of upkeep as well as accomplish the function of "absolutely no failure" maintenance.

2. Phenomena and also principles.

The tons cell includes techniques such as auto mechanics, power, as well as chemistry. gy load cell for the fault is made complex as well as it is tough to court. Development in failure.

It is undoubtedly hard to detect in advancement that the load cell remains in a "sub-healthy" condition.

The mistakes of the lots cell can be separated into 3 classifications according to the principle: A, brought on by flexible body; B, brought on by electric shock as well as circuit.


的; C, triggered by the pasting process. No matter what kind of failings will certainly be reflected through the unbalanced result.

The size of the absolutely no factor outcome of the tons cell is a representation of the top quality of the production procedure and the high quality of the style, and it is also a possible failure.

Among one of the most noticeable symptoms.

The no factor result of the load cell is as well large, which postures a possible danger to the integrity of the sensor. The modification of zero point will likewise make.

On this basis, after expedition, it is discovered that the vacant range output and also no-load output signal changes of the load cell. At the same time, it additionally discusses the output of the vacant scale. The change of the outcome of the vacant range is a concentrated reflection of 2 essential technological signs of the lots cell absolutely no point and also linearity.

The tons cell remains in the "sub-healthy" condition. Both most typical as well as most delicate phenomena are both most sensitive as well as typical attributes: one is that the evaluating sign commonly alters absolutely no during usage, however it can automatically return to no without influencing the evaluating. The 2nd is that when the typical weight is packed during the use duration, there is often a small over-tolerance, however it can be brought back to typical by adjusting the potentiometer. One of these phenomena suggests that there are "sub-healthy" sensing units in the range. Just how to locate as well as diagnose?

1. Surveillance.

( 1) Monitoring of vacant ranges with lots cells. Under actual evaluating conditions, the load-bearing device evaluates the body (or load-bearing weighing.

The framework) remains in location, and also the mechanical components remain in area. Procedure the outcome worth of each sensing unit of the range under the excitation voltage, and also edit it by position.

Great number, make an excellent document. This is the result worth of the sensing unit's empty scale.

( 2) No-load surveillance of the lots cell. Under actual considering conditions, position each sensing unit of the range.

No-load state, measure the result value of each sensing unit under the excitation voltage, code the number according to the placement, and make a document. This is the transmission.

No-load outcome worth of the sensor. At the same time, the input resistance of the sensor is determined, as well as the output resistance and also the no-load output are contrasted with the technical requirements offered by the manufacturer at the manufacturing facility.

( 3) After filling as well as adjusting the scale with the typical weight, it is best to gauge each of the ranges under the problem of basic weight loading.

Only the output value of the sensing unit, number it according to the setting, make a document and also show the conventional weight value. This is the sensing unit's basic weight result.

worth.

2. Tracking.

Determine the moment space of the next dimension according to the place of use, celebration, atmosphere as well as other conditions. For each sensor.

The vacant scale outcome (or conventional weight result), no-load output for tracking measurement.

( 1) Use the manufacturing space to on a regular basis measure the empty scale output as well as no-load output of each sensing unit of the scale.

The conditions can measure the standard weight output of each sensing unit under the very same typical weight. Make a document as well as compare it with the initial document.

( 2) When the sensing unit's empty scale outcome (or basic weight outcome) as well as no-load result adjustment significantly, the monitoring time void must be.

Shorten, the monitoring thickness must be increased; when the outcome is stable for a long period of time, the tracking gap can be appropriately extended.

( 3) The same load is compared on its own at different factors (sections) of the range, and the tolerance is gone beyond, and also the vacant range of each sensing unit is gauged.

Result, no-load output, make a document, as well as compare with the original document.

This approach is generally utilized under busy weighing problems to comprehend the operating status of the scale.

( 4) When the sensor's "sub-healthy" sensation appears, it is essential to increase the outcome of the vacant range monitoring each sensor (or.

Conventional weight result) The gauged density of no-load result, make a document, and contrast it with the initial record.

( 5) For electronic sensors, utilize the same method to go into the vacant scale inner code value, vacant internal code worth, and standard weight interior code value.

Conduct tracking and also monitoring, as well as make excellent records.



The long-term stability of the no point of the lots cell is a requirement technical index in the integrity and also security of the sensor. On this basis, after exploration, it is found that the empty scale outcome and no-load result signal changes of the tons cell. At the exact same time, it likewise discusses the output of the empty range. The modification of the result of the empty range is a concentrated representation of 2 essential technical indicators of the lots cell zero point and also linearity.

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

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