Multi-mode electronic torque load instrument
A torque load, multi-mode technology, applied in the direction of electrical components, control of generators, control of generators through magnetic field changes, etc., can solve problems such as DC generator load single load operating characteristics
Active Publication Date: 2020-08-04
SICHUAN UNIV
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Problems solved by technology
[0003] In view of the above problems, the object of the present invention is to provide a multi-mode electronic torque load meter, which aims to solve the single load operating characteristic defect of the existing DC generator load, and provide an electronic torque load meter with multiple load modes optional, With load intensity automatic adjustment function
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[0050] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings. As a limitation of the present invention.
[0051] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that these specific details need not be employed to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail in order to avoid obscuring the present invention.
[0052] Throughout this specification, reference to "one embodiment," "an embodiment," "an example," or "example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in the present...
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The invention discloses a multi-mode electronic torque load instrument. The multi-mode electronic torque load instrument comprises a Hall sensor which is used for measuring the voltage of an armatureport of a generator and the current of the armature of the generator and feeding back the voltage and the current to a microprocessor through a signal conditioning circuit, a man-machine interaction panel which is used for selecting a load mode and setting operation parameters required by load calculation modules corresponding to different load modes, a microprocessor which is used for calling thecorresponding load calculation module according to the selected different load modes, calling induction parameters and / or operation parameters and / or fixed parameters required by the load calculationmodule, and executing the corresponding load calculation module to obtain a signal duty ratio sent by a PWM driving chip for driving and controlling a direct current chopper so as to adjust the current of the generator load loop. The defect of single load working characteristic is overcome, the functions of automatic load intensity adjustment and real-time display are achieved, and the torque characteristic of a set generator is achieved.
Description
technical field [0001] The invention relates to the field of electrical engineering, in particular to a multi-mode electronic torque load meter. Background technique [0002] In the existing electric motor experimental devices, the working mode of the motor unit (motor-DC generator) is widely used, and the DC generator is used as the torque load adjustment device of the prime mover motor. Due to the separately excited DC generator (hereinafter The generator voltage changes synchronously with the speed, and there are three major defects: 1) Its load mechanical characteristics present a slope function law, that is, linear energy consumption load characteristics, and cannot provide other common types of torque loads for experiments, such as constant rotation Torque reaction loads, constant mechanical power loads, fan loads, etc., seriously restrict the effectiveness of motor teaching experiments; 2) The traditional generator load torque adjustment is manually operated through a...
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Login to View More IPC IPC(8): H02P9/10H02P9/38
CPCH02P9/10H02P9/38
Inventor 肖勇
Owner SICHUAN UNIV