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[Chemical Knowledge]：How does the feeler gauge read

Read： 3123 Time：18months ago Source：Transform the World with Simplicity

A feeler gauge is a tool used to measure the size of an item. It consists of a graduated rod and a sliding bowl. When using a feeler gauge, we need to read the scale correctly to obtain accurate measurement results. The following is a detailed description of how to correctly read the scale value of the feeler gauge.

1. understand the basics of

first of all, we need to clarify how the scale of the feeler gauge is expressed. Typically, the scale of a feeler gauge is a thin line or number that is used to indicate the length or thickness of the measured item. In addition, we also need to understand the common units of feelers, usually millimeters, centimeters and inches.

2. Accurately locate the

When reading the feeler gauge, we need to accurately locate the measured item. For longer items, we can place the feeler gauge on one end of the item and move the bowl to the other end until it hits the item. For shorter items, we can directly attach the feeler gauge to the item.

3. Read the numerical

After positioning the measuring item, we need to read the scale value on the feeler gauge. If the feeler gauge is used in millimeters or centimeters, we can directly read the value on the scale. For example, when we measure the length of an item to be 10cm, we can place the feeler gauge bowl mouth on one end of the item, and then move the bowl mouth to the other end until it hits the item. At this time, we can obtain the length of the item to be 10cm by reading the scale closest to the item on the bowl mouth.

If the feeler gauge uses inches, reading the scale needs to be slightly more complicated. First of all, we need to confirm that the feeler gauge uses an imperial scale. Imperial feelers usually mark a long scale mark at every inch, and then mark with a short line at every 1/16 inch. When we read the inch scale on the feeler gauge, we need to first determine the inch scale line where the bowl mouth is located, and then determine the decimal value by the short line closest to the item on the bowl mouth.

4. Pay attention to error

When using a feeler gauge for measurement, we need to pay attention to the problem of error. The accuracy of the feeler gauge is usually about ± 0.1mm or ± 0.005 inches, so when we make high-precision measurements, we need to pay attention to the impact of measurement errors. In addition, it is also necessary to pay attention to the tight measurement, do not use too much force, resulting in deformation of the measured items and causing errors.

In short, the correct reading of the scale value of the feeler gauge is an important step to ensure the accuracy of the measurement results. When using a feeler gauge, we need to understand the basic knowledge, accurate positioning, reading values and paying attention to errors in order to obtain high-precision measurement results.