Going straight

摘要

Linear motors have been around as long as any other kind of electric motor, and have had their proponents and detractors over the years for a wide range of linear applications. It has to be said that the main barrier to their growth has been initial cost, which is generally higher than the traditional servomotors. However, the cost differentials are coming down, and this, combined with some serious application by the drives industry, is increasing user acceptance of these products.