| 摘要 |
The invention relates to designing and producing a test stand to allow the determination of the electrostatic field generated by a light conveyor belt during operation. According to the invention, the stand consists of a metal framework () on which there are monted some steel drums () with a diameter of 200 mm or higher, the driving drum () being cylindrical and mounted in a fixed manner, the driven drum () being mobile and cambered outwards, and the driving drum () is driven by means of a gearmotor (), on the two drums () there moving an endless conveyor belt () which represents the test specimen; on metal framework () there is also mounted a tensioning device () which comprises a tensometer cell and a weight indicator, an electrostatic field measuring/recording device (), a steel plate () connected to the ground for carrying out the correction as a consequence of the distortion of the electrostatic field generated by a measuring electrode and a steel plate () connected to the ground for carrying out the correction as a consequence of the distortion of the electrostatic field generated by a return branch of a specimen. |
