HomeProductsRadiation SensorsAutomatic Solar Photometer for Spectral Irradiance Monitoring and Solar Energy Analysis
  • Automatic solar photometer for spectral irradiance monitoring

Automatic Solar Photometer for Spectral Irradiance Monitoring and Solar Energy Analysis

Key Features

  • Automatic Solar Tracking: Uses optical scanning and time tracking technology to automatically follow the sun throughout the day with high tracking accuracy.
  • Multi Band Spectral Irradiance Measurement: Measures direct solar spectral irradiance at multiple wavelengths including 280–3000 nm, 340 nm, 380 nm, 440 nm, 500 nm, 670 nm, 870 nm, 936 nm, 1020 nm and 1640 nm.
  • Synchronous Measurement Technology: Simultaneously records multiple solar radiation parameters to reduce time sharing errors and improve spectral analysis accuracy.
  • Comprehensive Solar Radiation Monitoring: Supports direct irradiance, total irradiance, horizontal total irradiance, vertical total irradiance, diffuse irradiance, sunshine duration and solar altitude angle measurement.
  • Atmospheric Aerosol Optical Depth Calculation: Provides aerosol optical depth monitoring for atmospheric research, air quality studies and satellite calibration applications.
  • Built In RS485 Output Module: Integrated RS485 communication allows direct connection to existing RS485 networks without external converters or adapters.
  • GPS Real Time Positioning: Supports real time tracking of latitude, longitude and altitude for field deployment and mobile observation scenarios.
  • Solar Powered Outdoor Operation: Designed for outdoor monitoring with solar power support, reducing dependency on fixed power infrastructure.
  • Easy Installation and Low Maintenance: Integrated structure, automatic operation and no frequent manual calibration requirements help reduce field maintenance workload.
  • Rugged Outdoor Design: IP66 protection and wide operating temperature range make it suitable for long term use in harsh outdoor environments.

Product Description

Product Overview

JW-TBS-5L(LC21) Automatic Solar Photometer is a professional solar radiation monitoring device designed for spectral irradiance measurement, solar resource assessment and renewable energy monitoring applications.

Unlike conventional solar radiation sensors that measure only total solar radiation, a solar photometer can provide more detailed information about solar radiation distribution within specific wavelength ranges.

The system is suitable for:

  • Solar PV power plant monitoring
  • Solar resource evaluation
  • Meteorological observation
  • Environmental research
  • Agricultural solar radiation monitoring
  • Renewable energy projects

The automatic solar photometer can be integrated with:

  • Data loggers
  • Weather stations
  • IoT communication modules
  • Cloud monitoring platforms

Related products:

Solar PV Monitoring Solution

Solar Weather Station

What Is an Automatic Solar Photometer?

A solar photometer is an optical measurement instrument designed to detect solar radiation intensity within selected spectral bands.

Compared with traditional solar irradiance sensors, a solar photometer provides additional spectral information that helps users understand:

  • Solar energy distribution
  • Atmospheric influence
  • Spectral changes
  • Solar resource characteristics

Spectral irradiance measurement is widely used in solar research, atmospheric observation and advanced photovoltaic analysis.

Technical Specification

Item Specification
Product Type Fully Automatic Solar Photometer
Main Monitoring Parameters Direct irradiance, horizontal irradiance, vertical total irradiance, solar incidence angle, diffuse radiation, sunshine duration, aerosol optical depth
Spectral Wavelengths 280–3000 nm, 340 nm, 380 nm, 440 nm, 500 nm, 670 nm, 870 nm, 936 nm, 1020 nm, 1640 nm
Direct Irradiance Range 0–2000 W/m²
Direct Irradiance Resolution 1 W/m²
Direct Irradiance Accuracy 1 W/m²
Spectral Direct Irradiance Range 0–200 W/m²
Spectral Irradiance Resolution 0.1 W/m²
Spectral Irradiance Accuracy 3%
Total Irradiance Range 0–2000 W/m²
Total Irradiance Accuracy ≤5%
Diffuse Irradiance Range 0–2000 W/m²
Diffuse Irradiance Accuracy ≤5%
Sunshine Duration Range 0–24 h
Sunshine Duration Resolution 0.1 h
Sunshine Duration Accuracy ±0.1 h
Solar Incidence Angle Range 0–90°
Solar Incidence Angle Resolution 0.1°
Solar Incidence Angle Accuracy ±0.5°
Aerosol Optical Depth Range 0–1
Aerosol Optical Depth Resolution 0.001
Aerosol Optical Depth Accuracy ≤1%
Tracking Accuracy 0.5°
Weak Light Tracking Accuracy Less than 1°
GPS Positioning Supported
Latitude and Longitude Setting Supported
Altitude Measurement Supported
Communication Output RS485
Protection Rating IP66
Operating Temperature -30°C to 60°C
Storage Temperature -40°C to 80°C
Overall Weight ≤20 kg

Why Spectral Irradiance Monitoring Matters?

Solar radiation is not a single energy value.

Sunlight contains different wavelength components:

  • Ultraviolet (UV)
  • Visible light
  • Near infrared (NIR)

Different wavelengths influence:

  • PV module response
  • Solar energy conversion efficiency
  • Atmospheric attenuation
  • Plant photosynthesis

Spectral monitoring provides deeper information compared with simple solar irradiance measurement.

Solar Photometer Working Principle

Solar Radiation

↓

Optical Filter / Detector

↓

Spectral Signal Processing

↓

Data Logger

↓

Cloud Monitoring Platform

The instrument automatically collects solar radiation information and stores measurement data for further analysis.

Solar Photometer Applications

Solar PV Power Plant Monitoring

Solar spectral information helps engineers analyze:

  • Solar resource availability
  • Irradiance variation
  • PV performance changes

Solar Resource Assessment

Before developing a solar project, accurate solar radiation data is important for:

  • Site evaluation
  • Energy prediction
  • System optimization

Meteorological and Environmental Monitoring

Solar radiation monitoring supports:

  • Weather observation
  • Climate research
  • Atmospheric analysis

Solar Photometer vs Pyranometer

  Solar Photometer Pyranometer
Measurement Spectral radiation Total solar irradiance
Output Spectral information Global irradiance
Application Research, PV analysis Weather stations, solar monitoring
Data Detail Higher General

A pyranometer measures solar radiation flux density over a broad wavelength range, while spectral instruments provide wavelength-specific radiation information.

Solar Photometer vs Normal Irradiance Sensor

  Solar Photometer Normal Irradiance Sensor
Purpose Spectral analysis Solar intensity monitoring
Data Multiple wavelength information Single irradiance value
Application Advanced analysis Routine monitoring
Complexity Higher Lower

Integration With IoT Solar Monitoring Platform

Solar Sensor

Data Acquisition Device

Wireless Communication

Cloud Platform

Solar Management System

Installation Considerations

Installation Location

Recommended installation:

  • Open sky area
  • No shading objects
  • Stable mounting structure

Calibration and Maintenance

For reliable measurement:

  • Keep optical surface clean
  • Check installation angle
  • Perform regular calibration

Request Solar Monitoring Solution

JW-IoT provides solar monitoring solutions for:

  • PV developers
  • Renewable energy companies
  • Research institutions
  • System integrators

Please provide:

  • Measurement wavelength range
  • Communication requirement
  • Installation environment
  • Monitoring frequency

Contact:

https://www.jw-iot.com/contact-us

FAQ

  • Q

    1. What does this automatic solar photometer measure?

    A

    It measures direct solar irradiance, spectral direct irradiance, total irradiance, horizontal total irradiance, vertical total irradiance, diffuse radiation, sunshine duration, solar incidence angle and atmospheric aerosol optical depth.

  • Q

    2. Which spectral wavelengths are supported?

    A

    The system supports multiple solar spectral bands, including 280–3000 nm, 340 nm, 380 nm, 440 nm, 500 nm, 670 nm, 870 nm, 936 nm, 1020 nm and 1640 nm.

  • Q

    3. Can the photometer track the sun automatically?

    A

    Yes. The instrument uses automatic sun tracking technology with optical scanning and time tracking to follow the sun throughout the day, reducing the need for manual operation.

  • Q

    4. Does JW-IoT provide this product for meteorological monitoring projects?

    A

    Yes. JW-IoT can provide this type of automatic solar photometer as part of meteorological radiation monitoring, atmospheric observation and environmental monitoring solutions.

  • Q

    5. What communication output does the product support?

    A

    The product has a built in RS485 output module, allowing direct integration into RS485 communication networks without an additional external converter.

  • Q

    6. Is this solar photometer suitable for satellite calibration?

    A

    Yes. Because it measures multi band solar spectral irradiance and aerosol optical depth, it can be used for satellite ground calibration, atmospheric correction and remote sensing validation.

  • Q

    7. Can JW-IoT integrate this photometer into an IoT monitoring platform?

    A

    Yes. JW-IoT can integrate the RS485 data output into local data acquisition systems, RTUs, cloud platforms or customized IoT monitoring dashboards according to project requirements.

  • Q

    8. What are the main advantages compared with traditional solar photometers?

    A

    Compared with traditional instruments, it supports automatic tracking, multi wavelength measurement, synchronous data acquisition, RS485 output, GPS positioning and lower maintenance requirements.

  • Q

    9. Is the product suitable for outdoor long term installation?

    A

    Yes. The instrument has an IP66 protection rating, supports outdoor operation and works within a temperature range of -30°C to 60°C.

  • Q

    10. Can JW-IoT support OEM or project based customization?

    A

    Yes. JW-IoT can support project based configuration, data platform integration, communication protocol adaptation and solution packaging for overseas meteorological and environmental monitoring projects.

WhatsApp

Leave a message!

Leave a message!