Pyrheliometer

High Precision Direct Solar Radiation Measuring Instrument (Pyrheliometer)

Pyrheliometer Product Overview

Pyrheliometer is a state-of-the-art instrument designed to measure the direct radiation from the sun and the scattered radiation from the narrow ring of sky around it. Using advanced thermopile sensing technology, the pyrheliometer is specifically designed to accurately measure the direct radiation from the vertical surface of the sun (viewing angle of about 0.5°). With excellent sensitivity and a precise automatic tracking system, it is able to accurately capture and measure the intensity of radiation from the vertical solar surface, providing vital data for meteorological, agricultural, energy and environmental sciences.

How the pyrheliometer works

The pyrheliometer (Direct Radiation Meter) realizes the measurement of radiation intensity by means of a thermopile sensing component in the optical cylinder, which generates a temperature difference electric potential under sunlight, which is proportional to the intensity of direct solar radiation.

Pyrheliometer technical parameters

Pyrheliometer product features

1. High-precision Measurement: Adopting advanced wire-wound electroplated thermopile as the sensing component, it can respond quickly to the changes of solar radiation and ensure the measurement accuracy is higher than the industry standard (＜5% for working meter and ＜2% for standard meter).

2. automatic tracking system: integrated high-precision automatic tracking device, even in complex and changing weather conditions, can ensure that the instrument is continuously and stably aligned with the sun, to ensure that the error in long-term operation <1 °.

3. Wide Spectrum Reception: Equipped with JGS3 quartz glass sheet, it effectively transmits radiated light with wavelengths of 0.27-3.2µm, which comprehensively covers the main bands of solar radiation.

4. Optimized structure: seven-layer light bar design effectively reduces internal reflections, limits air turbulence, combines the inner cylinder and desiccant cylinder to ensure a stable measurement environment and reduce the impact of ambient temperature on the measurement results.

5. Durable and reliable: Made of high-quality materials with excellent waterproof and dustproof performance, adapting to a wide range of working environments from -45℃ to +45℃, ensuring long-term stable operation.

6. Precision optical cylinder design: Built-in seven carefully laid out optical columns to reduce internal reflections and ensure precise opening angles, while maintaining a stable internal environment and reducing external temperature interference through the isolation of the inner cylinder from the desiccant cylinder.

7. High-efficiency thermopile induction: Fast-responding wire-wound electroplated thermopile, coated with non-glossy black paint, absorbs solar radiation efficiently, and the temperature difference generates a stable electromotive force, which is proportional to the intensity of radiation.

8. Wide applicability: suitable for a variety of scientific research and industrial applications, providing stable data support.

Pyrheliometer use and maintenance

1. Daily inspection: Check the cleanliness of the quartz glass window of the optical cylinder before daily work, remove dust and water vapor condensation in time to keep the optical components clear.

2. Regular calibration: check the tracking situation every month, and make alignment adjustments if necessary to ensure the tracking accuracy. It is recommended to recalibrate the sensitivity every two years by the manufacturer or measurement department.

3. Handle gently: This instrument is a precision device, it should be handled carefully and gently, avoiding violent vibration and impact.

4. Environmental adaptation: Pay attention to the use of the environment, avoid extreme temperature, humidity and corrosive gases, in order to extend the service life of the instrument.

Pyrheliometer application areas

Meteorological observation: Provide accurate solar radiation data to support weather forecasting and climate change research.

Agricultural research: Evaluate the impact of solar radiation on crop growth and optimize planting management and irrigation strategies.

Energy development: Providing key parameters for solar photovoltaic and solar thermal power generation projects to improve energy utilization efficiency.

Environmental science: monitoring changes in solar radiation and assessing its impact on the Earth's ecosystem.

The pyrheliometer not only helps to improve the utilization efficiency of solar energy resources, but also provides important data support for climate change research. Applicable to scientific research institutions, meteorological departments, solar power generation and other fields, it is an important tool for realizing green and sustainable development.

Conclusion

The Pyrheliometer (Direct Radiation Meter) is an instrument specialized in measuring the radiation from the vertical solar surface (viewing angle of about 0.5°) and the scattered radiation from a very narrow ring of sky around the sun. It provides accurate direct solar radiation data for weather forecasting, climate research, solar energy utilization and other fields.

With its accurate measurements, stable performance and easy operation, the pyrheliometer provides a reliable solution for monitoring direct solar radiation. Choose our products for your work in the fields of solar energy utilization and climate research.