Square tools are easy to find in the workshop whether it is a machinist or woodworking workshop. It functions mainly to check the squareness, perpendicularity, and right angle (90-degree angles). Nowadays, squares are used for marking, scribing, framing, drawing, etc. That’s because the square helps scribe lines either perpendicular or parallel to the edge of … Read more
Gauge blocks are a set of precision-cut stable metal blocks of different thicknesses used as a length standard. They usually come in a set, but you could also find them individually. Measuring instruments such as micrometers, digital calipers, vernier calipers, dial calipers, height gauge, dial indicators, and test indicators use gauge blocks for inspection and … Read more
Learning about how to read a dial caliper is about learning how to read its main and dial scale. The main scale is linear like the ruler, while the dial/secondary scale is circular. Simply, if you ask how to read dial caliper, you have to master these two scales. There is an imperial or metric … Read more
Reading a digital caliper is easier compared to reading a vernier caliper or dial caliper. It automatically displays the reading on the LCD screen. So, there is no need to calculate the main and the secondary scale. It requires less time and effort to read the measurements. Although it’s easier, when it comes to how … Read more
Reading vernier caliper takes more steps than reading dial caliper or reading digital caliper. The users have to manually calculate both the scales (the main scale and the vernier scale). Vernier scale calculation, especially, is the contrasting thing when compared to reading those two types of caliper. Your eyes have to be careful when deciding … Read more
Two things to get a better understanding of how the gauss meter works: Hall effect and Lorentz force. Gauss meter works making use of the Hall effect. The semiconductor of the Hall effect sensor is charged with current. The magnetic field will pull or push electrons in the semiconductor and then creating voltage differences. This … Read more
Calibration is to find out the measurement error. According to the measurement error that is observed, verification is to decide whether it is within the tolerance (permissible error) or not. Then, validation is to make sure it measures what it’s meant to. In some cases, verification and validation overlap. Calibration According to NIST, calibration is … Read more
Gauge blocks or slip gauges or Jo-blocks are used for calibration, inspection, and verification. They function as standards. According to its grade level, they can be a reference or working standard. Therefore, you could find gauge blocks in the area of the workshop and calibration lab. The role of gauge blocks is highly vital in … Read more
A T-square is a type of square tool to scribe a perpendicular line on a working surface (wood, paper, etc) that starts from its surface edge (not the corner). Although it’s a square tool, its main purpose is not for checking the workpiece’s corner like the try square and speed square do. This tool is … Read more
Capacitance is the electronic component’s ability to store energy (in the form of an electric charge) that is generated by different voltages. The electronic component that stores energy is called a capacitor. To measure the capacitance of a capacitor, we need an electronic measurement device that is called a capacitor tester or capacitance tester. To … Read more