Measurement method and device for human visual frequency
A technology of frequency measurement and vision, which is applied in the fields of eye testing equipment, medical science, diagnosis, etc., and can solve the problems of not finding human visual frequency signal measurement and being unable to measure human visual frequency signal, etc.
Inactive Publication Date: 2020-04-10
南京五能电子科技有限公司
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Problems solved by technology
[0004] At present, no measurement of human visual frequency signals has been found, therefore, it is impossible to use any existing method or equipment to measure human visual frequency signals
Method used
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[0027] figure 1 In , the servo motor is connected with the matching servo driver. The servo driver is connected with a serial port of the microcontroller. An interrupt port of the microcontroller is connected to the infrared receiver. The RC port of the single-chip microcomputer is connected to the data input port of the digital display, and the RD port of the single-chip microcomputer is connected to the bit input port of the digital display. The single-chip microcomputer receives the instructions sent by the infrared remote control through the infrared receiver, and sends the speed parameters to the servo driver through the serial port according to the instructions, so as to adjust the speed of the motor. At the same time, the single-chip microcomputer sends the motor speed to the digital display for display.
[0028] Mount a flange on the shaft of the servo motor. Install 6 experimental blades on the flange, forming an included angle of 60° with each other.
[0029] T...
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The invention provides a measurement method for human visual frequency. Human visual frequency measurement is performed by using the method of controlling the rotational speed of a motor for driving rotating blades, blades or disks are directly and uniformly installed on a rotating shaft driven by the motor, distinguishable blades are drawn on the disks, or blades are uniformly installed on a flange fixed on the rotating shaft, the number, shapes and colors of the blades are optional, when the number of the blades is N, the rotational speed of the motor is gradually adjusted and increased, when an observer sees that the blades are fixed at some angles and do not rotate, the observer is in visual frequency resonance, the blade rotational speed is n rpm, the human visual frequency is n / 60xN,and the number of the blades is N, wherein N is an integer less than 20 and greater than 2. A device provided by the invention has ingenious design, is not in contact with a human body during the visual frequency test, and uses a synchronization technology to test the human visual frequency; and the method can be applied to the following aspects: latest visual research rewrites a ''visual principle'' textbook; and the method is used in the research of brain electrical evoked potentials and is used in the research of artificial intelligence.
Description
technical field [0001] The invention relates to a method and equipment for measuring human visual frequency. The instrument can test low-speed visual sampling frequency, high-speed visual sampling frequency and high-speed visual sampling frequency in the human visual system. Background technique [0002] People often see this phenomenon. When the car starts to accelerate from a stop and the tire speed of the car is getting faster and faster, the observer next to it sees: at certain speeds, the wheel hub (or tire) of the car ) rotates clockwise, and at other certain speeds, the wheel hub of the car rotates counterclockwise. From this reasoning, at certain speeds, the observer will see that the tires of the car do not spin. In fact, when the car is moving forward, the tires should always rotate in one direction (clockwise), and the observer sees that the rotation of the tires is related to the rotation speed of the tires. Obviously, this is an optical illusion. [0003] The...
Claims
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IPC IPC(8): A61B3/02
CPCA61B3/02
Inventor 黄来友
Owner 南京五能电子科技有限公司