What is the weight scale?
Weight scale is any device used to determine the weight of the object; It usually includes a scale that denotes weight or compares an object with calibrated known weight. The directions of many types existed since prehistoric times and could be as simple as comparing an item to be purchased on one side with a stone on the other side. In the 21st century, the standards can measure everything from small particles to spacecraft using technology from complex digital equipment to simple balanced scale used for thousands of years.
Lost history is any indication of when people first used scale. The sale of goods according to the weight has been common for thousands of years and could be first fulfilled by hanging an item at one end of the wand and balancing with a stone or other object for comparison. Over time, the need for consistent business practices has led to the development of standard weights and measures. The Romans are often attributed to the development of scpivo weight and terms such as a pound used to describe weight.
on the ground, weight and weight are the same due to the gravity of the country. The weight of the scale measures the weight of the object or person under the effect of the gravitational draft of the earth, known as one gravity. On other planets with less gravity, the object weighs less, but its mass does not change. In the universe, objects are called "weightlessness", which does not mean that they have lost matter, only the effects of gravity that can be measured on a weight scale.
A simple scale used from Roman times is a balance or beam scale. The balancing scales often consist of a horizontal arm or a beam supported in the middle, with a basket or a tray at each end. The materials to be considered are located on one tray, the other tank is located a reference weight of the known amount and either the weight is changed or the materials are added or removed as long as they are both wrapping and the beam is horizontal.
to 19.In the 18th century, the scale was developed using calibrated springs to weigh materials. The objects to be considered were placed on a flat table connected to the wound spring mechanism with an indicator attached in the center of the spring. The weight of the object turned the spring and the indicator indicated the weight on the printed or engraved dial or graph, allowing direct measurement without the need to add weight or adjust the balanced beam.
with the development of electronics in the 20th century could be produced by a weight scale with minimal moving parts. A digital force meter and an electronic signal sent to a processing device could be connected at the bottom of the weight table that could directly read the weight. These digital scales were portable, durable and easy to calibrate. Many developed countries in the 21st century weighed commercial road cars, both for the purpose of assessing road transport companies and from overweight TR with overweights that were dangerous and damaging roads.
The key to measuring good weight is to know that the scale is accurate. Calibration is needed regularly, and various companies with a wide range of calibration techniques, name systems and regulations came from historical time. Different countries could use different weight systems, but it turned out that standard calibrated weights are needed, so all scales were similarly modified.
Over time of the government, standard weights and measurements for commercial goods began to create, both to prevent fraud and to provide the base for taxation. Many countries in the 21st century had agencies responsible for checking and certifying scales used for the sale of a wide range of goods. The calibrated weights were carefully produced, maintained and cross -controlled so that all scales were consistent in their measurement.