Bootstrap control circuit-based electric eddy current power-measuring system
A technology of control circuit and dynamometer system, which is applied in power metering, measuring devices, instruments, etc., can solve the problems of motor performance test impact, acquisition of weak torque signals, etc., and achieve the effects of low system cost, cost reduction, and energy saving
Inactive Publication Date: 2015-09-23
CHENGDU CHENGBANG POWER TEST INSTR
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the defect that the traditional eddy current dynamometer system will collect weaker torque signals and affect the performance test of the motor, and provide an eddy current dynamometer system based on a bootstrap control circuit
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[0023] Such as figure 1 Shown, the present invention is by motor to be tested 1, single-chip microcomputer 4, the motor control module 5 that is connected with single-chip microcomputer 4, display 6, operation module 7, the eddy current dynamometer 2 that is connected with motor to be tested 1, and eddy current The signal processing module 3 that the dynamometer 2 is connected, the motor control module 5 is also connected with the motor 1 to be tested, in order to achieve the purpose of the present invention, the present invention is also provided with an automatic Lift control circuit 8.
[0024] Wherein, the single-chip microcomputer 4 is used as the control center of the present invention. The eddy current dynamometer 2 is used to detect and output the torque signal of the motor to be tested. The signal processing module 3 is used for processing the torque signal output by the eddy current dynamometer 2 . The bootstrap control circuit 8 can amplify the torque signal. Th...
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The invention discloses a bootstrap control circuit-based electric eddy current power-measuring system, which comprises a to-be-measured motor (1), a single-chip microcomputer (4), a motor control module (5), a display (6), an operation module (7), an electric eddy current dynamometer (2) connected with the to-be-measured motor (1), and a signal processing module (3) connected with the electric eddy current dynamometer (2). The motor control module (5), the display (6) and the operation module (7) are connected with the single-chip microcomputer (4). The motor control module (5) is also connected with the to-be-measured motor (1). The system is characterized in that a bootstrap control circuit (8) is arranged between the signal processing module (3) and the single-chip microcomputer (4). According to the invention, by means of the bootstrap control circuit, the electric eddy current dynamometer can output larger voltage signals. Therefore, the detection accuracy on the output power of the to-be-measured motor is ensured.
Description
technical field [0001] The invention relates to an eddy current dynamometer system, in particular to an eddy current dynamometer system based on a bootstrap control circuit. Background technique [0002] The eddy current dynamometer is currently the most advanced loading dynamometer equipment in China, especially in the low-speed and high-speed loading dynamometer tests of power machinery, compared with other types of dynamometer loading. As far as equipment is concerned, it has obvious advantages in terms of performance, price, reliability, and ease of maintenance. Especially in the loading dynamometer of low-speed machinery and micro-power machinery, it is unmatched by other methods. Therefore, in many occasions, the eddy current dynamometer has replaced the magnetic powder clutch, hydraulic dynamometer, DC generator set, etc., and is used to measure the performance of various electric motors, gasoline engines, diesel engines, gearboxes and other power machinery, and has ...
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IPC IPC(8): G01L3/24
Inventor 程社林余仁伟杨忠敏卢中永
Owner CHENGDU CHENGBANG POWER TEST INSTR