Читать книгу The ESD Control Program Handbook - Jeremy M. Smallwood - Страница 24

A charge in an electrostatic field experiences a force, as described in Section 1.2.2. So, a charged particle or object will also experience a force according to the charge it carries. This causes charged particles and objects to be attracted or repelled by other objects, some of which may be product or items that are required to be kept clean. This effect is known as ESA.

A lesser known phenomenon that contributes to electrostatic attraction or repulsion is dielectrophoresis (Cross 1987). In this case, uncharged particles can be attracted or repulsed in a divergent or convergent electrostatic field due to differences in the permittivity of the particle and the material in which it is immersed.