In the field of ultraviolet technology applications, accurate measurement of radiation intensity is the core link to ensure disinfection effectiveness, material curing quality, and environmental monitoring reliability. Changzhou Jintan Taina Instrument Factory launched254The ultraviolet radiation illuminance meter, with its high-precision sensing technology based on photoelectric effect and intelligent design, has become an excellent measurement tool in medical, industrial, and scientific research scenarios. The innovative advantages of this instrument are analyzed from three dimensions: working principle, technical characteristics, and application value.

1、 Optoelectronic effect: precise conversion from light energy to electrical signals

254The core technology of ultraviolet radiation illuminance meter is based on the principle of photoelectric effect. When the wavelength is254nmWhen ultraviolet light is irradiated onto the surface of the sensor, the gallium arsenide material in the sensor absorbs photon energy, causing electrons to transition from the valence band to the conduction band, forming a photocurrent proportional to the intensity of the incident light. This process realizes the direct conversion of ultraviolet energy into electrical signals, avoiding the errors that may be introduced by traditional mechanical measurements. The instrument uses double integral fractionA/DConversion circuit amplifies weak photocurrent signals and converts them into digital display values with a resolution of up to1μW/cm²Ensure precise capture of low-intensity ultraviolet radiation (such as in the initial stage of disinfection lamps).

2、 Technical features: anti-interference, wide range, and intelligent design

1. Blind tube technology resistant to visible light interference

The instrument adopts a blind tube sensor structure, with a visible light blocking window on the outer layer and an integrated narrowband filter inside, which can effectively shield visible light interference such as sunlight and light, ensuring that the measurement data only reflects254nmThe true intensity of ultraviolet radiation. This design is particularly important in outdoor disinfection scenarios, such as when operating UV disinfection vehicles in community squares. Even in strong daylight environments, the equipment can still maintain its effectiveness±5%Measurement accuracy.

2. Wide range and automatic shifting function

Range coverage0-2000μW/cm²and0-40mW/cm²Two levels, through×10Seamless switching is achieved through file extension. In the medical field, when monitoring30WWhen using a straight tube ultraviolet lamp, the instrument can automatically switch to a low range for display70-200μW/cm²The effective disinfection range; In industrial solidification scenarios, the high range mode can measure thousandsμW/cm²Strong ultraviolet radiation to meet the detection needs of different power devices.

3. Intelligent operation and data management

Equipped with an LCD display, it supports synchronous display of real-time values, maximum values, minimum values, and energy values, with a sampling speed of up to3time/In seconds. The data retention function can lock key measurement points to avoid data loss caused by operational movements. For example, in the calibration of UV tunnel disinfection machines in food processing plants, operators can quickly record the radiation intensity at different locations and save it through the built-in storage module20Group data for subsequent analysis.

3、 Application value: Multi scenario coverage and standard compliance

1. Compliance guarantee for medical disinfection

According to the Technical Specifications for Disinfection in Medical Institutions（WS/T367-2012）The radiation intensity required for the use of ultraviolet lamps≥70μW/cm².254The ultraviolet radiation illuminance meter passes throughNISTStandard traceability can accurately verify the disinfection efficiency of ultraviolet lamps in hospital operating rooms and wards, avoiding the risk of cross infection caused by insufficient intensity.

2. Quality control of industrial solidification and water treatment

In the printing and coating industries, the UV curing strength directly affects the hardness and adhesion of materials. The instrument can monitor in real-timeUVThe output stability of the curing lamp ensures that the ink or coating is stable3Achieve optimal curing effect within seconds. In the field of water treatment, by measuring the irradiation dose of ultraviolet disinfection reactors, the synergistic disinfection process of chloramine can be optimized to reduce the risk of disinfection by-products.

3. Environmental monitoring and scientific research support

Instrument support245nm-265nmBand measurement can be used for monitoring the atmospheric ozone layer, studying plant photosynthesis, and other scenarios. For example, in agricultural greenhouses, by quantitatively analyzing the effects of different wavelengths of ultraviolet radiation on crop growth, the configuration of artificial light sources can be optimized to improve yield and quality.

Conclusion

254The ultraviolet radiation illuminance meter achieves high precision and ease of use in ultraviolet measurement through photoelectric effect sensing technology, anti-interference design, and intelligent functions. Its application capabilities covering multiple fields such as healthcare, industry, and environmental protection not only meet the strict requirements of current standards for radiation intensity, but also provide reliable data support for the innovative application of ultraviolet technology. With the integration of IoT technology, this instrument is expected to achieve remote monitoring and automatic calibration in the future, further promoting the development of UV measurement towards intelligence and networking.