Converter for converting visible red light into infrared light

Abstract

The invention discloses a converter for converting visible red light into infrared light. The converter comprises a photosensitive sensor U2, a comparator U1, a control switch Q1, an infrared transmitting tube TH1 and a power supply. The photosensitive sensor U2 is connected with the comparator U1 through a circuit; the comparator U1 is connected with the infrared transmitting tube TH1 through thecontrol switch Q1, the comparator U1 is connected with a resistor R4 and a resistor R5 in series, and the photosensitive sensor U2, the comparator U1, the control switch Q1 and the infrared transmitting tube TH1 are all connected with a power supply. According to the converter for converting the visible red light into the infrared light, the red light is converted into the infrared light, the wave band of the ambient light is effectively avoided, the detection distance is effectively increased, meanwhile, a photoelectric detection device does not need to be aligned very accurately during detection, and the detection efficiency and operability are effectively improved.

Description

technical field [0001] The invention relates to the field of converters, in particular to a converter for realizing the conversion of visible red light into infrared light. Background technique [0002] At present, in the design of the electric energy meter, in order to facilitate the inspection of the measurement accuracy of the electric energy meter, a light indicator light for photoelectric calibration is specially designed. The indicator light uses visible red light (wavelength 600 nanometers). The calibration device collects photoelectric signals to calibrate the error. On the other hand, it is used to instruct people to check with the naked eye, but the wavelength of red light coincides with ambient light (sunlight, wavelength 400-750 nanometers), so visible red light in the environment It is very easy to be interfered by ambient light. If the photoelectric calibration device is more than 10 cm away from the meter, it will be difficult to collect or the collection will...

AI Technical Summary

Problems solved by technology

[0002] At present, in the design of the electric energy meter, in order to facilitate the inspection of the measurement accuracy of the electric energy meter, a light indicator light for photoelectric calibration is specially designed. The indicator light uses visible red light (wavelength 600 nanometers). The calibration device collects photoelectric signals to calibrate the error. On the other hand, it is used to instruct people to check with the naked eye, but the wavelength of red light coincides with ambient light (sunlight, wavelength 400-750 nanometers), so visible red light in the environment It is very easy to be interfered by ambient light. If the photoelectric calibration device is more than 10 cm away from the meter, it will be difficult to collect or the collection will cause a large error, resulting in signal distortion. At the same time, the photoelectric calibration device must be aligned with the light indicator. , a slight offset will cause the acquisition signal to be distorted, which brings great operational difficulty and strict environmental requirements (the ambient light should not be too strong) in the production or inspection process, which brings great difficulties to production or customer acceptance. big inconvenience

The production efficiency is low, and the inspection accuracy is greatly disturbed

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