What is the spring dynamometer often called in life?

The service life of the spring dynamometer is as follows:

In fact, this refers to the spring scale. In life, spring dynamometer is often called spring scale. Students are no strangers to springs. They have seen objects weighed with a spring scale, but they are not familiar with measuring force with a spring dynamometer, which is easily confused with a tray balance. Some students will choose the tray balance to measure the force.

Classification of spring scales:

Spring scales are divided into two types: pressure type and tension type. The pressure on the tray of the pressure spring scale is equal to the gravity of the object, and the rotation angle of the scale pointer indicates the value of the pressure. The lower end of the tension spring scale is connected with a hook (this hook is connected with the lower end of the spring), and the upper end of the spring is fixed on the ring at the top of the shell. When the measured object is hung on the hook, the spring will extend and the pointer fixed on the spring will drop.