High-Precision Pyranometer for Solar PV Performance Ratio (PR) Monitoring
High-precision pyranometers (also known as solar radiation sensors) are essential tools in the performance monitoring of solar photovoltaic systems. Specifically designed to measure the intensity of solar radiation, they help monitor the energy output and system efficiency of photovoltaic power plants. These advanced instruments ensure the accuracy of Power Ratio (PR) calculations for photovoltaic systems, thereby providing users with reliable data support.
- Output: 200mv of original output
- Sensitivity: 7～14μV∕W.m-2
- Response time: <35 s (99% response)
- Cosine response: ≤ ±7% (at a solar altitude angle of 10°)
- Azimuth: ≤ ±5% (at a solar altitude angle of 10°)
- Nonlinearity: Not greater than ±2%
- Spectral range: 0.3–3.2 μm
Price: $259–$279
Introdução
A pyranometer is a precision instrument used to measure the intensity of solar radiation and is widely used in solar photovoltaic systems. It employs a thermopile sensor to convert radiation intensity into an electrical signal based on the principle of thermoelectric potential. When sunlight strikes the sensing surface, the resulting temperature change generates an electromotive force that reflects the intensity of solar radiation. The double-layer quartz glass cover is designed to minimise the effects of air convection, ensuring measurement accuracy. Pyranometers can precisely measure solar radiation in the wavelength range of 0.3 to 3.2 micrometres and are widely used in fields such as photovoltaic power generation, meteorological monitoring, and climate research.
pyranometer working principle
The working principle of a Pyranometer is based on the thermopile sensor, which absorbs solar radiation and converts it into an electrical signal. Here’s how it works:
- Absorption of Solar Radiation: The pyranometer’s sensor, typically a thermopile, absorbs solar radiation across the spectrum of 0.3 to 3.2 micrometers.
- Temperature Difference: The absorbed radiation heats up the sensor, causing a temperature difference between the sensor’s hot and cold junctions.
- Generation of Voltage: This temperature difference generates a small electrical voltage (Seebeck effect) that is directly proportional to the amount of solar radiation received.
- Measurement of Voltage: The generated voltage is measured and recorded as a value representing the intensity of the solar radiation.
- Conversion to Data: The voltage output is then converted into readable data, which indicates the solar radiation in watts per square meter (W/m²).
Structure pyranometer
- Sensing Element
Composed of a fast-response, wire-wound, electroplated thermopile, used to convert solar radiation into an electrical signal. - Sensing Surface
Coated with matte black paint to increase radiation absorption efficiency, the sensing surface is connected to the hot junction. - Double-Layer Quartz Glass Cover
The outer cover reduces the effects of air convection, while the inner cover blocks infrared radiation from the outer cover, ensuring measurement accuracy. - Cold Junction
Creates a temperature difference with the sensing surface; together with the hot junction, it generates an electromotive force proportional to the intensity of solar radiation. - Desiccant
Protects internal electronic components from moisture, ensuring instrument stability. - Shade Plate
Used to adjust and block excessive sunlight, ensuring the accuracy of the radiometer’s measurements.
Mostrar detalhes
The solar pyranometer’s design details, from the sensing surface at the top to the mounting interface at the bottom, demonstrate superior construction, and the double-glazed housing effectively minimises external interference. Every component, including the sensing element, the desiccant in the housing, and the precision fittings, has been rigorously engineered and tested to ensure long-term, efficient operation. Below are details shown for the solar pyranometer:
Especificações
The pyranometer is specifically designed for measuring solar radiation, featuring a fast response time (<35 seconds) and exceptional stability (annual stability of ±2%). With a spectral range of 0.3–3.2 μm, it is suitable for a wide range of radiation monitoring applications. Below are the pyranometer specifications:
Parâmetros
| Type | Weather Station | Saída | RS485 |
| Usage | PAR | Brand Name | Yantai Sensor |
| Description | Flange installation | Description | Total Solar Radiation Pyranometer Sensor / solar radiation sensor |
| Features | High Sensitivity | Manufacturer Part Number | TBQ-2C |
| Mounting Type | Multi-function | Place of Origin | Hebei, China |
| Series | HCD | ||
| Saída | 200mv of original output | Sensitivity | 7-14mv/kw·m² |
| Tempo de resposta | <35s (99% response) | Annual stability | ≤±2% |
| Cosine Response | ≤±7% (solar elevation 10°) | Position | ≤±5% (solar elevation 10°) |
| Non linear | ≤±2% | Spectral range | 0.3-3.2μm |
| Temperature coefficient | ≤±2% (-10–40°C) | ||
Features pyranometer sensor
Fast response
Response time less than 35 seconds, ensuring rapid response to changes in radiation intensity.
Wide spectral range
0.3–3.2 μm, suitable for measuring various types of solar radiation.
Durable design
Features weather-resistant and waterproof properties, enabling operation in harsh environments.
Low maintenance
A streamlined design reduces maintenance and upkeep, extending the device’s service life.
Strong Compatibility
Compatible with various data acquisition systems, facilitating integration into existing platforms.
Interference Resistance
High-quality optical components and protective design minimize external interference.
Applications pyranometer
Pyranometers are widely used in various fields that require precise measurements of solar radiation intensity, particularly in solar power generation and meteorological research. By providing highly accurate radiation data, pyranometers help optimise the efficiency of solar power systems and support environmental monitoring and climate research. Below are specific applications of pyranometers:
Photovoltaic Power Generation
Used to assess solar radiation intensity, helping to optimise the performance and efficiency of photovoltaic systems.
Monitorização meteorológica
Used by weather stations to monitor solar radiation, supporting weather forecasting and climate research.
Monitorização ambiental
In environmental protection and ecological research, it monitors radiation intensity to provide data for climate change studies.
Agricultural Research
Used in agriculture and greenhouse cultivation to monitor light conditions, helping to optimise crop growth environments.
Climate Research
Used in climate change research to measure solar radiation, providing data support for predicting global climate trends.
Aerospace Applications
Used on satellites and space stations to measure solar radiation, supporting radiation monitoring during space missions.
custom solar pyranometer
Custom solar Pyranometers provide tailored solutions to meet the specific needs of different customers and application scenarios. By adjusting parameters, design, and functionality, these custom pyranometers can satisfy the precise requirements for solar radiation measurement across various professional fields, ensuring efficient performance and reliability in specific environments.
Customization Options
- Sensitivity Range: The sensitivity range can be adjusted to meet customer requirements and accommodate various radiation measurement needs.
- Gama espetral: Custom spectral ranges are available to suit specific applications, such as the measurement of ultraviolet, visible, or infrared radiation.
- Tempo de resposta: Response time can be optimized to meet application requirements and adapt to rapidly changing radiation environments.
- Housing Material: Select different housing materials based on the operating environment, such as waterproof, corrosion-resistant, or high-temperature-resistant options, to ensure reliable operation under harsh conditions.
- Temperature Adaptability: Customise temperature coefficients to accommodate a wider temperature range based on the customer’s operating environment requirements, thereby maintaining measurement accuracy.
- Custom Data Interfaces: We offer various data interface options, such as Modbus, RS485, and wireless communication, to facilitate integration with existing monitoring systems.
- Mounting Options: We provide multiple mounting options, such as fixed-mount and adjustable-angle mounting, to accommodate different installation requirements.
- Accuracy Requirements: We offer high-precision measurement options to meet the needs of specific applications with stringent data accuracy requirements.
pyranometer Fabricante e Fornecedor
Yantai Sensor is a professional pyranometer manufacturer and supplier, specialising in high-precision solar radiation measurement solutions for solar energy systems, environmental monitoring, and scientific research. Our thermopile pyranometers are designed to accurately measure solar radiation levels, providing stable and reliable data for performance ratio (PR) monitoring, energy optimization, and climate studies.
With strong independent R&D capabilities, advanced manufacturing facilities, and a dedicated environmental testing laboratory, each pyranometer undergoes rigorous quality checks, including temperature, humidity, vibration, and long-term performance tests. Certified with CE, ISO, and RoHS, we offer reliable products along with flexible OEM/ODM services to support global solar energy and climate monitoring projects.
