AIP permanent magnetic rotor tester test items mainly include Back EMF, Hall characteristics (high and low voltage, frequency, duty cycle, Hall waveform), Phase difference (back EMF, Hall, Back EMF and Hall)

AIP permanent magnetic rotor tester is suitable for all kinds of brushless DC motor external rotor and internal rotor electrical performance test.


Permanent magnetic rotor tester

This series of products is suitable for testing the electrical performance of various DC brushless motor outer rotor and inner rotor, such as the rotor of washing machine motor, air conditioner motor and other home appliance motor. The rotor tester consists of test tooling, industrial computer, test host, system control software and various function modules, etc. It realizes the test of DC brushless rotor motor's Back-EMF and Hall characteristic test, and the equipment will complete the test items of set program as preset sequence after starting, and give the qualified and unqualified indication and sound and light alarm after the test is completed. Light curtain is installed at the entrance of the equipment operation area to protect the operator's personal safety.

Key Features

Integrated design: innovative design solutions for integrated structure, simplifying the operating stations.

Fast clamping: simple and efficient clamping solution, easy to operate by production line personnel, to meet the production line pace.

Software features: user permission setting function; large storage able to save over 1000 programs.

Simple operation: meet actual needs of the production line, Windows operating system, easy to operate software

MES: support connecting with the production management system.


Test Items: Back EMF, Hall characteristics (high and low voltage, frequency, duty cycle, Hall waveform), the Phase difference (back EMF, Hall, Back EMF, and Hall)

Tester can test the permanent magnet motor with the inner rotor and outer rotor.

Test objects: home appliance motors, power tool motors, pump motors, automotive motors, and other types of permanent magnet rotors.

Ultra-high precision tooling design, to ensure uniform stator and rotor air gap, stable and accurate testing.

Problems can be detected in advance before the motor is assembled and save cost. BEMF test can detect whether the rotor is unevenly magnetized and the poor magnetization issue effectively. 



AIP886X series

Test items

Back EMF, Hall characteristics (high and low level, frequency, duty cycle, Hall waveform), Phase difference (back EMF, Hall, Back EMF and Hall)


Brushless motor rotor

Test station

Duplex station

Back EMF

Voltage measurement range/accuracy

20.0~200.0V    ±(0.5%×display value+5words)  Range can be customized

Speed setting range/precision

200~3000rpm   ±1rpm     Recommended BACK-EMF testing speed is 1000rpm

Phase difference/ precision

0.0~360.0°     ±1°

Hall characteristics

VCC power supply

3.00~18.00V    ±(0.5%× setting value+3 words)

High and low level range/precision

0.00~18.00V    ±(0.5%×display value+3words)

Frequency range


Duty cycle/ precision

0.0~100.0%      ±(0.5%×display value+2 words)

PG/Hall waveform

Waveform display

Phase difference

Phase difference judgment

Back EMF phase difference, Hall phase difference, Back EMF and Hall phase difference



  • What motor has a permanent magnet rotor?

    A permanent magnet synchronous motor (PMSM) is an electric motor that uses permanent magnets to generate the magnetic field necessary for its operation. PMSMs are commonly used in a variety of applications, including electric vehicles, industrial machinery, and renewable energy systems.

  • What kind of magnets are used in rotors?

    The magnetic field for a synchronous machine may be provided by using permanent magnets made of neodymium-boron-iron, samarium-cobalt, or ferrite on the rotor. In some motors, these magnets are mounted with adhesive on the surface of the rotor core such that the magnetic field is radially directed across the air gap.

  • Are permanent magnet motors AC or DC?

    A permanent magnet (PM) motor is an AC motor that uses magnets embedded into or attached to the surface of the motor's rotor.

  • Does Tesla use permanent magnet motors?

    Further, rare earth elements are not used in every type of electric car motor – Tesla uses them in DC permanent magnet motors but not in its AC induction motors. Originally, Tesla used AC induction motors in its vehicles, which did not need rare earth elements.

  • What is the difference between a permanent magnet motor and a servo motor?

    Permanent Magnet: Magnets on or in the rotor work with the motor's magnetic fields; Servomotor: Uses feedback signals to control closed loop systems – work is variable.