Diffraction Grating Spectrophotometer LDGS-T2012

Introduction

Diffraction Grating Spectrophotometer supports viewing angles of 2° and 10°, enabling accurate color assessment. It features a high-stability illuminant designed for extended use with minimal maintenance requirements. The system has a polarization control option, providing precise analysis of materials with directional light reflection. Our diffraction grating spectrophotometer offers fast measuring time, ensuring quick results and improving efficiency.

 

This analytical equipment is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Diffraction Grating Spectrophotometer is a laboratory instrument which uses diffraction grating to disperse light for high-resolution analysis. It is extensively used in paints, coatings, and inks for evaluating pigment consistency and opacity.

Specifications

Viewing Angle	2°/10°
Sphere Size	Φ48 mm
Sensor	256 Image Element Double Arrays Image Sensor
Wavelength Range	400 to 700 nm
Wavelength Pitch	10nm
Half Bandwidth	10nm
Reflectance Range	0 to 200%
Measurement Aperature	Φ 20 mm
Color Spaces	, , Yxy, LCh, , Hunter , Bxy
Color Difference Formula	ΔE × ab ΔE × uv, ΔE × 94, ΔE × cmc (2:1), ΔE ×cmc (1:1), ΔE × 00, ΔE (Hunter)
Other Indices	WI ( E313, / , , Hunter) YI ( D1925, 313) MI (Metamerism Index)
Measurement Geometry	45/0(45˚ Ring Shaped Illumination, Vertical Viewing)
Illuminants	D 65, A, C, D50, D55, D75, F1, F2 (), F3, F4, F5, F6, F7 (), F8, F9, F10 (), F11(TL84) F12 (TL83/ U30)
Measurement Time	1.5 s
Repeatability	Spectral Reflectance: / Standard Deviation: 0.1% (400 to 700 nm) Chromaticity Value: Standard Deviation ΔE × ab 0.04
Inter – Instrument Agreement	ΔE × ab 0.2
Measurement Mode	2 to 99 times
Data Storage	Standard:1000 Pcs Sample:30000 Pcs
Battery Performance	5000 Measurement within 8 hrs
Working Environment	Temperature: 0 to 40°C Humidity: 0 to 85% Altitude: Less than 2000 m
Storage Environment	Temperature: 20 to 50°C Humidity: 0 to 85%
Power	DC 24V, 3A
Dimensions (L× W× H)	184 × 77 × 105 mm
Weight	600g

Features

Noise Reduction Technology

Advanced Colorimetric Algorithms

High-Performance Optical Coatings

Integrated Spectral Library

Metamerism Detection

FAQs

1. Can Diffraction Grating Spectrophotometers measure fluorescence spectra?

Yes, Diffraction Grating Spectrophotometers are highly effective in measuring fluorescence spectra. When a sample fluoresces, the emitted light is typically dispersed by the grating, enabling the analysis of the emission spectrum. This is particularly useful in fluorescence spectroscopy, where researchers analyze the light emitted from a sample after it has been excited by a light source. The high resolution of the grating allows for the precise detection of fluorescence peaks, which can provide insights into the chemical or physical properties of the sample. The ability to separate the emitted wavelengths also enables the study of molecular dynamics. Calibration of the system ensures accurate measurement of fluorescence intensity and wavelength shifts. Fluorescence spectroscopy with gratings is widely used in biological and chemical analysis.

2. Does a Diffraction Grating Spectrophotometer require a monochromatic light source for accurate wavelength measurement?

It supplies premium Diffraction Grating Spectrophotometer, the monochromatic light source is highly recommended for accurate wavelength measurement in a diffraction grating spectrophotometer. Monochromatic light ensures that only a single wavelength is dispersed by the grating, allowing for precise wavelength measurements and higher resolution. When broadband or white light is used, the grating must disperse multiple wavelengths, which may reduce the accuracy of individual wavelength measurements. Using a monochromatic source provides clearer spectral peaks and simplifies the calibration process. For accurate calibration and wavelength determination, it is essential to use a well-defined monochromatic light source. This setup ensures reliable and reproducible spectral data. The system’s resolution and sensitivity can be maximized with a monochromatic source.

3. What applications do Diffraction Grating Spectrophotometers have in the food and beverage industry?

Diffraction Grating Spectrophotometer are used in the food and beverage industry, diffraction grating spectrophotometers are used to analyze the composition, quality, and safety of products. They help in the detection of additives, preservatives, and contaminants by identifying their spectral signatures. These spectrophotometers are also used in the testing of food colorants, ensuring that they meet safety standards and match desired colors. They provide essential data for quality control during production processes, such as the consistency of flavor profiles in beverages. Furthermore, they assist in the development of new food products by analyzing molecular interactions and compositions.

4. How do Diffraction Gratings contribute to the overall sensitivity of the Diffraction Grating Spectrophotometer?

Diffraction Grating Spectrophotometers efficiency significantly impacts the overall sensitivity of a spectrophotometer. A highly efficient grating can diffract more light, increasing the amount of signal detected by the system. Efficiency varies across the spectrum; for example, gratings may be more efficient in certain spectral regions like the visible light range but less efficient in the UV or IR. Grating materials, coatings, and groove profiles are selected to maximize sensitivity for the wavelength range of interest. To maintain sensitivity at lower signal levels, optical systems can incorporate more sensitive detectors and higher-order diffraction to capture more light. Grating alignment and maintenance also influence sensitivity, as misalignment reduces light collection. Proper calibration ensures the spectrophotometer remains sensitive across a broad spectrum, providing reliable measurements even with weak signals.

5. Can a Diffraction Grating Spectrophotometer resolve overlapping spectral peaks?

Yes, Diffraction Grating Spectrophotometers can resolve overlapping spectral peaks, but their ability to do so depends on several factors, including the grating's resolution, the detector's sensitivity, and the spectral distance between the peaks. High-resolution gratings can separate closely spaced peaks by dispersing the light more finely. The spectrophotometer’s optical setup, including the slit width and grating order, must be optimized for resolving power. In some cases, advanced algorithms or software are used to deconvolve overlapping peaks. Proper calibration of the system ensures that the spectral peaks are accurately resolved and that their intensities are correctly measured.

6. What role does the refractive index of materials play in Diffraction Grating Spectrophotometer?

It supplies premium Diffraction Grating Spectrophotometer. The refractive index of the materials used in a diffraction grating spectrophotometer affects the diffraction angle and efficiency. The grating’s material determines how the light is refracted and diffracted at the interface. Materials with a higher refractive index may result in higher diffraction efficiency, especially in holographic gratings. Additionally, the refractive index of the sample being analyzed can influence the spectra, as it affects the light’s speed and wavelength. In some applications, the refractive index must be accounted for in the calibration process to ensure accurate spectral analysis. It is important to consider the refractive index of both the grating and the sample during spectrophotometric measurements.