What quality issues are important when selecting a linear motor?
Several specific areas should be investigated. These include dimensional accuracy, repeatability from motor to motor, quality of workmanship, rugged industrial design, expertise in the overall systems design and a quality program to ensure that proper testing is performed before the product is shipped. Trilogy has been building linear motors since 1987. It’s all we do so we do it well. • Some designs using laminations skew or angle their magnets. What does this do? Skewing the magnets in ironcore linear motor designs is a tradeoff between lowering motor efficiency to attain less ripple force. Rotary brushless DC motors have long used this technique for the same reason. Trilogy ironcore motors use the patent pending Anti-Cog technology and do not skew the magnets. • What amplifier do I use to drive the linear motor? For Trilogy Motors, three phase brushless amplifiers are used. Either linear or PWM amplifiers can be used. Linear amplifiers are best for extreme smoothness requirements an
