Frequency type speed sensor detection instrument

The utility model discloses a frequency type speed sensor detection instrument, which comprises a servo motor, a detector and a mounting plate, the rotating end of the servo motor is fixedly connected with a test gear, and the upper end of the mounting plate is provided with a placement hole in a penetrating manner. Firstly, a tested speed sensor is placed in a placing hole, then a thread adjusting handle is rotated downwards, in the rotating process, a positioning head is driven to descend, the positioning head is pressed on the speed sensor, positioning of the speed sensor is completed, at the moment, the rotating frequency of a servo motor is set, in the rotating process of the servo motor, a testing gear is driven to rotate, and the speed sensor is tested. At the moment, the speed sensor receives a signal, when the frequency of the received signal and the set rotating frequency are within the difference range, the speed sensor can meet the use requirement, when the difference exceeds the set range, the au