Direct return to zero method This method installs a stop block at the zero position, and then makes the stepper motor drive a sufficient angle toward the zero position. When the stepper motor returns to the zero position, it is blocked by the block and the motor is stopped. Bearing is zero.

This zeroing method is simple, but when the motor is blocked by the stopper, it will still drive the motor to perform the zeroing action, so it will not only cause damage to the stepper motor and the transmission mechanism, but also violent vibration and large noise will occur. 2. Sensor method This method installs position sensors such as Hall switches and photodiodes at the zero position. When the stepper motor returns to the zero position, the sensor gives a detection signal. When the control circuit detects the signal, the motor stops at zero. Orientation.

This zeroing method is accurate and reliable, but it increases the complexity of the circuit and places certain requirements on the device. 3. Special motor drive chip with stall detection is used. 芯片 This chip can immediately detect that the motor is stalled when the motor stalls, thereby determining the zero position. However, this Purifier motor manufacturer method has poor versatility, and has certain requirements for the current phase of each winding of the stepper motor, and this method cannot be used in the micro-step driving mode.

Linear motors are very useful, and linear motors are now widely used. But why are linear motors always more expensive? Here to analyze why linear motors are more expensive. Generally speaking, the reason why linear motors are more expensive depends on the following factors. The main reason why linear motors are more expensive is the data cost, such as high-performance permanent magnets and copper. The gap between this data cost and traditional motors is obvious, but from the perspective of the use of cost, the requirements for accuracy / reliability and lifetime are relatively high.

The use occasions are still cost-effective; Then there is the scale of linear motor production, linear motors are still small batch products, there is no scale advantage, so the cost of a single product is higher; linear motors are limited to structural characteristics, do not form a standardized, unified Dimensional standards, needs to improve various structural cooperation based on actual use; Linear motors are more expensive, but also the cost of linear motors. The cost of system accessories for linear motors is higher, such as linear encoders, drives, and so on. Therefore, the use of linear motors is still based on actual needs.

The price and performance advantages of linear motors are only reflected in some high-end or special applications, such as the need for long stroke, high speed, high accuracy, high reliability, and single-axis multi-motion. And maintenance-free Purifier motor manufacturer use occasions; customers should use linear motor skills reasonably, such as the high-speed, high-precision characteristics of linear motors, which determine its hard requirements in the electronic equipment industry. The above is the reason why linear motors are more expensive. You can also understand that linear motors are expensive for a reason.

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