Needle gauge is a commonly used measuring tool used to measure the external dimensions of various objects, including the measurement of aperture. Below, we will introduce several commonly used methods for measuring aperture using needle gauges.
1. Single sided measurement method
This method is suitable for situations with larger apertures. Firstly, select a measuring needle gauge that matches the aperture. Then, place the measuring arm of the needle gauge into the hole to make contact with the hole wall. Ensure that the needle gauge is perpendicular to the hole wall and there is no friction between it and the hole wall. Finally, by reading the scale on the needle gauge or the numerical value on the digital display, record the measurement result of the aperture.
2. Double sided measurement method
This method is suitable for situations with smaller apertures or when demanding higher measurement accuracy for apertures, first choose a measuring needle gauge with an outer diameter slightly larger than the aperture. Then, place the measuring arm of the needle gauge into the hole to ensure good contact with the hole wall. Next, place the measuring arm of the other gauge on the other side of the hole, so that it is parallel to the measuring arm of the gauge and in contact with the hole wall. Finally, by reading the scale on the two needle gauges or the numerical values on the digital display, record the measurement results of the aperture.
3. Tubular measurement method
This method is suitable for situations where the pore size is too small to be directly measured using ordinary needle gauges, such as micropores in micro components. Firstly, select a measuring needle gauge that matches the aperture and set its scale position to zero. Then, insert the measuring needle gauge into the hole in a direction perpendicular to the hole axis, and maintain its verticality and stability. Then, after measuring the scale on the gauge or the numerical value on the digital display, record the measurement result. Compared with other methods, the tubular measurement method requires higher technical requirements and operational skills.
4. Gauge measurement method
This method is suitable for relatively large apertures and does not require high measurement accuracy. Firstly, select a gauge and set a quantitative position on it. Then, contact the foot of the gauge with the hole wall and record the measurement result of the aperture by reading the scale on the gauge or the numerical value on the digital display device
When terminating the needle gauge measurement of aperture
1. Choose a suitable measuring needle gauge size and try to choose a needle gauge that matches the aperture to reduce measurement errors.
2. The scale of the needle gauge is clear, and the numerical values of the digital display are accurate and reliable.
During the measurement operation, adhere to the appropriate pressure between the needle gauge and the hole wall to avoid excessive compression or loosening
Move.
4. Measure multiple times and take the average to improve the accuracy and reliability of the measurement results.
In summary, a needle gauge is a commonly used tool for measuring aperture. Depending on the different sizes and measurement accuracy of the aperture, different measurement methods can be chosen to terminate the measurement. By selecting the appropriate measuring needle gauge correctly, paying attention to the details during the measurement process, and taking the average of multiple measurements, the accuracy and reliability of measuring the aperture with the needle gauge can be improved.
