Adjustable encoder bad contact resistance is what reason?

Contact resistance adjustable encoder have contact with bad people? Know how to judge the adjustable encoder bad contact resistance? And know the adjustable encoder bad contact resistance is what reason? How to determine the adjustable encoder bad contact resistance? 1, disassemble the product, check whether there is any oil on the carbon surface pollution; 2, check the presence of brush deformation, check the brush height recovery of freedom. Adjustable encoder bad contact resistance is what reason? 1, carbon plate itself poorly designed or use improper material; 2, carbon brush and contact condition is poor. Shanghai electronic products co. , LTD. , is 27 years old coder manufacturer, specializing in the production of various types of adjustable encoder, the company has a strict quality control process, production batch qualified rate & ge; 99. 3%, over the years, the strict requirements for quality, let the encoder in customer word of mouth, awarded by customers for many times' excellent suppliers, become a peer leader, looking for a cost-effective, quality adjustable encoder manufacturer is looking for electronic.