Electronic balance capable of preventing air convection

Abstract

The invention discloses an electronic balance capable of preventing air convection. The electronic balance comprises a first compartment, a second compartment, a display device and a processing device, wherein weighing trays are arranged inside the first compartment, a weighing device is arranged inside the second compartment, the first compartment is separated from the processing device by a front wall and a rear wall, the processing device is hung on the rear wall, a cavity is formed between the front wall and the rear wall, the second compartment is pneumatically connected with an upper part of the first compartment through the cavity, and a cooling device is arranged at a lower part of the first compartment. Through the manner, the electronic balance capable of preventing the air convection provided by the invention, a weighing error caused by the air convection around the weighing trays can be prevented and weighing accuracy of the electronic balance can be increased.

Description

technical field [0001] The invention relates to the field of item weighing, in particular to an electronic balance preventing air convection. Background technique [0002] The balance that weighs the mass of objects through electromagnetic force balance is usually called an electronic balance. The mass of an electronic balance is generally small, and it is characterized by accurate and reliable weighing, fast and clear display, automatic detection system, and simple automatic calibration device. And overload protection and other devices. Because the weight of the object to be weighed is very small, a small change in the external environment may affect the weighing result. In the traditional electronic balance, the weighing equipment will generate heat during the weighing process, which will cause a pressure difference around the weighing pan and air convection, resulting in inaccurate weighing results and large errors. Contents of the invention [0003] The technical pro...

AI Technical Summary

Problems solved by technology

Because the weight of the object to be weighed is very small, a small change in the external environment may affect the weighing result

In the traditional electronic balance, the weighing equipment will generate heat during the weighing process, which will cause a pressure difference around the weighing pan and air convection, resulting in inaccurate weighing results and large errors.

Images