Introduction to the new use of Electronic Balance

       This article is mainly based on the density measurement experiment, the light spring stiffness coefficient measurement experiment and the friction coefficient measurement experiment, and the new application method of the electronic balance is tested, and one machine can be used for multiple purposes.

　　An electronic balance is a weighing instrument that weighs the mass of an object. It has the characteristics of intuitive display of the mass of the object and is easy to use. Its working principle is that the signal of the external force acting on the force sensor is processed by the electronic circuit, and the mass of the object is displayed in digital form. One of the electronic balances The important feature is the "zero setting" function. Usually, people just use electronic balances to measure the mass of objects, while ignoring the wide use of its functions. Especially in the teaching of physics experiments, let students think about how to develop the functions of electronic balances to To achieve the purpose of cultivating students' innovative ability. The following is an example to introduce the new usage of electronic balance.