Now the strain gauge’s change in the resistance is directly proportional to weight or applied force on the surface. The deformation of the strain gauge causes the electrical resistance of the metallic foil to change. When we apply weight or force on the surface it deforms and the strain gauge deforms as well. The Strain gauge is flexible it is a thin metallic foil pattern sandwiched between two thin plastic sheets and it has to be attached on a surface using suitable glue or any adhesive material. Simmons and mechanical engineer Arthur Claude Ruge. This was invented by electrical engineer Edward E. The strain gauge is a transducer or a sensor which measures the strain (deformation) on an object. Now you know what is weight and what are the factors make an object heavy. The weight of 1Kg on earth will weight 160 gram on the moon with exact same mass, because moon has much weaker gravitational pull. The gravity is constant across the globe (There are minor variation in gravity due to non-uniform spherical shape of the earth, but it is very tiny). The weight depends on one more factor: Gravity.
Mass is the amount of physical matter present in an object. The amount of force exerted is directly proportional to mass of an object, which means higher the object’s mass, the higher the force exerted.
The mass production of a pill with tiny difference of few milligrams of dosage is enough to make a lifesaving pill in to a suicide pill. One gram is same across the globe, all weight measuring device must measure the same. In modern times, we measure weights in kilograms, milligrams even micrograms for laboratory purpose.
Weight is being a vital concept since ancient times it helped in trading goods, development of scientific equipments and commercial products. We all love to see our weight regardless of our age, a small kid may love to see his / her weight gain and adults may love to see his / her weight loss. This post deals with weight measurement and measuring methods, and implementing the methods in an Arduino based weighing scale circuit.