Can You Pass The piezoceramic rings Test

It can be seen that at the driving frequency of the motor speed can be quickly stabilized, the piezo vibration sensorcontinues to run, and its surface temperature continues to rise, gradually stabilizing at 55C after 100 minutes. it can be seen that as the motor size becomes larger, The surface temperature of the motor also becomes higher, mainly because the size of the motor becomes larger, the contact area between the stator and the rotor becomes larger, and the driving motor of piezoceramic ring sensor also has a larger operating energy, so the relative heat also increases, it is making the surface of the motor.The temperature is also higher than the temperature of a small motor. In summary, the factors that affect the start-up and shut-off time of the ultrasonic motor can be obtained.

 (1) The greater is damping, the longer is the energy accumulation time and the shorter the energy dissipation time; (2) The mechanical lag of piezoelectric pressure sensor.Increasing the motor start-up time; (3) Partial slip of the friction interface increases energy dissipation, and the start-up time increases and the off-time decreases. (4) The piezo ring ceramic transducer is the pre-pressure, it is the longer the start-up time and the shorter the off-time.type motor torque is greater than motor torque, motor temperature characteristics are better than the motor. type motors and the admittance circle becomes smaller as the pre-pressure increases.

piezo transducer datasheet motor has a high speed of 63 rpm, a maximum efficiency of 21%, and a maximum stall torque . The ultrasonic motor operates the driving frequency. As the size of the ultrasonic motor increases, the pre-stress is applied will increase, the contact area between the stator and the rotor will increase, the energy use of efficiency will increase, the torque will increase, and the load will be able to be driven. As the energy dissipation rate increases, the surface temperature of the motor also increases, and the resonant frequency and anti-resonant frequency increase. As a result, the drive frequency of the piezoceramic ring sensor increases. For a small size motor, its inner and outer diameter ratio is a large-curvature motor, and the drive frequency will deviate from the FEM effect, the error between the two is larger, and for a large motor, the ratio of inner to outer diameter is >0.40, which is small In the case of curvature, the actual driving frequency will be more consistent with the FEM results.