metrology
What does a manometer measure? A manometer gauge is an extremely basic but very effective device which is used to measure pressure. In the majority of cases this will relate to a gauge which consists of a U-shaped glass tube which is filled with mercury or some other liquid. Traditionally one end of the manometer …
Hardness generally refers to the resistance of a material to scratching or indentation, and a qualitative measure of the strength of the material. The most commonly used hardness tests are the Rockwell test, Brinell test and the Vickers hardness test. This article will provide an introduction into durometer hardness and the gauge used to measure …
A dynamometer is a power measurement instrument used to determination the work being done by a machine over time. Work is the force vector that acts in such a way and direction that it results in the displacement of a mass. So, the action of lifting a bucket of water in a time period of …
Dynamometer – types, working principle and power measurement basics Read More »
Photogrammetry in mechanical engineering is becoming more popular, so let’s take a look at the concept and how it’s used. Photogrammetry derives from the Greek words photos, meaning light, gramma, meaning record, and metreo, which means measurement. It’s a process that has been used since the mid 19th century, of taking measurements from photographs. Obviously, the …
The surface roughness chart is a concept that expresses the amount and extent of deviation of a surface from being perfectly flat. As it is practically impossible to manufacture a completely flat surface on the microscopic level, every surface has a certain value of roughness that can be measured with the use of a profilometer. …
Reverse engineering, as defined by the Merriam-Webster dictionary, is ‘the activity of studying the parts of something to see how it was made and how it works so something like it can be made.’ But what does that mean from an engineering perspective? Applications of reverse engineering The main application of reverse engineering is to …
A profilometer is a highly specialised meteorological measurement device that is used for the determination of the roughness of a surface. As a measurement instrument, the profilometer is very precise as it is expected to have the capacity to identify and quantify very small-scale surface features. The roughness of a surface is categorised in grades …
How often have you wondered if a material you need for your project is hard enough for its intended purpose? Hardness is a critical property for many applications. Fortunately, there is a relatively easy method to measure the hardness of materials, called the Vickers Hardness test. According to the Metals Handbook, hardness is defined as …
Vickers Hardness Test: What it is and how it’s measured Read More »
Heterogeneous materials are gaining more popularity in use for manufacturing high-tech parts. This means that analyses and certifications need to be conducted and will therefore require a thorough understanding of the behavior and responses of such parts. While many are working on analytical and mathematical models to describe the properties of these materials, there is …
In designing and manufacturing, the ability to measure your results is very important. Quick, accurate, and repeatable measurement is the goal of every quality system. One issue that is widely experienced in the production environment is the ability to get the same result from operator to operator, especially with complex parts and small tolerances. The …
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