Keyboard detection device for testing radiated susceptibility of radiofrequency electromagnetic field of oiling machine

Abstract

The invention relates to a keyboard detection device for testing the radiated susceptibility of a radiofrequency electromagnetic field of an oiling machine. A support is disposed at the periphery of akeyboard of the oiling machine, and is provided with a lateral rail. The lateral rail is provided with a connecting block, and a lateral transmission device drives the connecting block to move alongthe lateral rail. Two ends of the lateral rail are each provided with a moving block, and the two moving blocks are respectively in threaded connection with two screws, wherein the two screws are disposed on the support, and are distributed at the left and right sides of the support. A longitudinal transmission device drives the screws to rotate, and the lower end of the connecting block is in suspended connection with a hanging bracket. The hanging bracket is provided with an electromagnetic push rod, and the lower end of the electromagnetic push rod is connected with an elastic pressing head. The longitudinal transmission device, the lateral transmission device and the electromagnetic push rod achieve the pressing of the keys of the keyboard, and a person does not need to enter a high-intensity electromagnetic radiation environment, thereby reducing the damages caused by electromagnetic radiation to a human body, and ironing out the defects that the keyboard of the oiling machine cannot be detected in the current testing of the radiated susceptibility of the radiofrequency electromagnetic field of the oiling machine.

Description

Technical field: [0001] The invention belongs to the technical field of anti-radiation detection of fuel dispensers, and in particular relates to a keyboard detection device for a fuel dispenser radio frequency electromagnetic field radiation immunity test. Background technique: [0002] The radio frequency electromagnetic field radiation immunity test is to test electrical and electronic equipment to observe whether the function of the tested product is normal in the radio frequency electromagnetic field radiation environment. [0003] For fuel tankers, in the "JJF1521-2015 Fuel Tanker Type Evaluation Outline", Section 10.9.2 clearly stipulates that fuel tankers must undergo electromagnetic environment tests. Electromagnetic environment tests include electrostatic discharge immunity, radio frequency electromagnetic field radiation Immunity, electrical fast transient burst immunity, surge (shock) immunity, voltage sag, short interruption and voltage change immunity test, dur...

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Problems solved by technology

[0004] However, at present, when the radio frequency electromagnetic field radiation immunity test is carried out on the fuel tanker, the fuel tanker is placed in the radiation immunity electromagnetic compatibility laboratory. The radio frequency radiation source, the electromagnetic field generated by the radiation source is more harmful to the human body. Therefore, when conducting the radio frequency electromagnetic field radiation immunity test on electrical and electronic equipment, personnel are strictly prohibited from entering the laboratory. However, for fuel tankers , in the case of radio frequency electromagnetic field radiation, whether the keyboard of the fuel tanker is invalid must be determined by operating the keyboard. During the test, personnel are prohibited from entering the laboratory, so the test operation of the keyboard of the fuel tanker cannot be performed. The 2015 Fuel Dispenser Model Evaluation Outline clearly requires that during the test, it is necessary to check whether the keyboard operation of the fuel dispenser is invalid. However, due to the high-intensity electromagnetic field radiation in the laboratory, testers cannot enter the laboratory and cannot check the keyboard of the fuel dispenser.

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