How do you measure a car, a wardrobe or a pillow...
Posted by CECILIA ADMIN
It is important to find common points in the technical communication between the producer and the user. Technical common sense and general technical knowledge, acquired in school, are often enough to communicate regardless of the continent.
I thought that school leaves deep traces.
Sometimes you want to remember some details: how to measure a pillow, a car or a wardrobe?
A textbook of Technological Education and Practical Applications for secondary school would quickly solve the problem.
However, fast forward, some images can be edifying:
| Nominal car dimensions | Nominal cabinet dimensions | Nominal dimensions of the pillow | Dimensions of the technical drawing |
|---|---|---|---|
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Glossary of terms for this topic:
Measuring = the comparison between a standard and the quantity to be measured (the compared quantities have the same nature). Any measurement is accompanied by measurement errors.
Nominal dimensions = theoretical, ideal dimensions, those to be achieved according to the project.
Gauge dimensions = maximum dimensions of an object in the 3 design directions x, y, z (height, length, thickness)
Error = slowness of the measurements and not the mistake
Operator = buyer or supplier (the one who makes the measurements). The measured values differ depending on the degree of training, the instruments used, the number of measurements, etc.
Dimensional tolerance = is the difference between the limit dimensions (maximum dimension and minimum dimension) […]. Nominal dimensions are not measured dimensions. The measured dimensions fall within the tolerated dimensions.
| Possible errors in the measurement activity |
Accuracy of the resulting measurement |
|---|---|
| Operator read error | unspecified |
| Positioning error of the measuring instrument | unspecified |
| Error given by the unevenness of the product | unspecified |
| Error generated by not knowing the domain | unspecified |
| More commonly used units of measure: | |
|---|---|
| 1 meter = 100 cm | 1 cm = 0.01 meters |
| 1 meter = 1000 mm | 1mm = 0.001 meters |
| More commonly used measuring instruments |
Measurement accuracy |
|---|---|
| Roulette | +/- 1 mm |
| Tailoring meter | +/- 1 mm |
| Graduated ruler | +/- 1 mm |
| Mechanical Subler | +/- 0.1 mm |
What are the dimensions of our "1.5 m Hourglass Pillow" pillow if the dimensions are expressed like this:
A measurement correct would reveal the following values:
The "L" length of the pillow is the minimum of 1.425 meters and the maximum length is 1.575 meters.
The "D" width of the pillow is the minimum of 0.76 meters and the maximum width is 0.84 meters.
Conclusion:
Although the measurements may differ from one operator to another, practical common sense helps you orient yourself technically. If the school we teach also helps us, we can be credible anywhere in the world. Trust Voinicel.ro products
Sources used for this article:
– The largest Romanian car manufacturer, Automobile Dacia SA, Logan dimensions
– Technological education and practical applications, Manual for the 7th grade, CD PRESS Publishing House, page 18
– Technological education and practical applications, Manual for the 6th grade, Didactic and Pedagogical Publishing House, page 21
– Tolerances and dimensional control, Course support, Faculty of Machine Construction and Industrial Management, authors Florentin Cioată, Adriana Munteanu, page 12
