Focus on measurements
Accurate measurement and proper care of measuring instruments is the basis of good practice workshop. Laboratory IC is department responsible for the quality of measurements performed in the IC. We can show You most improtant usage of equipment used in the workshop.
When we board the plane, we are convinced of its technical efficiency. When we take the elevator also assume it will be work properly. Where do you get that confidence? Let’s imagine that the spare parts of said aircraft were measured with untested instruments; that we were getting into the elevator he was installing mechanic not following the basic rules assembly. Sometimes we know, sometimes we don’t know how many situations our safety depends on from the correct operation of measuring instruments; on the reliability of measurement systems and awareness of the people who use them. When we get on the plane or the described elevator, we believe in the knowledge and competences of the people entrusting it to use. Customers place similar trust in mechanics, leaving their cars in their hands workshops.
DO CUSTOMERS RIGHTLY GIVE MECHANICS TRUST?
Each mechanic should answer this question individually. Whether how much trust he has in himself and the quality of his work, or the same trust has with regard to the instruments he uses in the workshop? How can he be sure that the instruments used measure correctly? how to know that the obtained result is correct? Can we measure well?
Measuring instruments are used in each workshop. From the common caliper and gauge to the torque wrench, to complex diagnostic devices
workshop. Used every day gives results, without which we would not be able to undertake no decisions. We measure and we know: good/bad, fits/does not fit, can be mounted or not?
Measurementunder the microscope
Proper performance of measurements and care for measuring instruments is the basis of good workshop practice. The IC lab is responsible for the quality of measurements performed in the IC. We provide knowledge in the field of supervision over the equipment used in the workshop. The calibration certificate is a source of information about the instrument and increases confidence in the measurements. To be confident in your measurements, you must be sure about the instrument you are using. How to get this certainty? By checking and calibrating instruments measurement.
WHAT IS REFERENCE?
Calibration is a series of operations establishing, under certain conditions, the relationship between the measurand values indicated by the instrument and the corresponding values reproduced by the standard. The proof of calibration is the issue of a calibration certificate. On the certificate all calibration results are placed, about measurement errors. The calibration certificate can be a confirmation that the instrument meets certain requirements. Therefore, when measuring with an instrument with a calibration certificate, we know which one the extent to which we can trust the results of measurements obtained through it.
Why is calibration so important? To ensure the reliability of the results. we can it
obtained by reference to another proven instrument with higher accuracy. WITH
in turn, a higher-class instrument is referred to
another, even more precise. This chain
of associations is called traceability. Thanks to it, we can be sure that we get the correct results. Therefore, consistency
is so important.
What if the instrument measures incorrectly?
But it is not everything. In addition to the device, there is still
many factors affecting credibility
results. Let’s consider the conditions. in which we measure.
The workshop is not a laboratory. It is not easy ensure appropriate environmental conditions. We know, but if we know, then let’s not approach uncritically to the results of workshop measurements. Even because of the temperature. Everyone knows how important temperature is measuring the same objects in summer and winter. Their dimensions will vary depending on the season year! Weird? NO! After all, every material has certain thermal expansion. Increases yours dimensions at higher temperature, and decreases at lower. For example, for steel: at a difference of 10°C dimension difference can be 0.12*10-3mm per meter. Is it a little or a lot?? Depends what we want to measure.
REMEMBER ABOUT TEMPERATURE
The same applies to the installation of spare parts in the car. An experienced mechanic knows perfectly well which replacements are carried out on a “cold” and which on a “warm” engine. You don’t need to convince him. So why is it so hard to convince him to use it same principle for geometric measurements? The effect of temperature should be taken into account measurement result. The temperature can make that we will get different results of measurements made in the workshop and different in the laboratory. Due to the fact that in the laboratory we care about maintaining constant environmental conditions (temp. 20±2°C), these are the laboratory results is credible. It’s worth having this fact on for example, in case of doubt related to complaints. Since we have a good instrument and we know the influence of environmental conditions on the result of the measurement, all we can do is: good to measure.