LIDA-20 Fourier Infrared Spectrometer

LIDA-20 Fourier Infrared Spectrometer Introduction

The LIDA-20 FTIR spectrometer, a cost-effective FTIR spectrometer developed independently by Tianjin Hench Technology Co., Ltd., features easy installation, superior manufacturing quality, and convenient maintenance. It is widely used in fields such as biomedicine, materials science, petrochemicals, food safety, and environmental protection, making it an indispensable spectral analysis instrument for both production and scientific research.

Optomechanical Architecture & Interferometer Engineering

The LIDA-20 FTIR spectrometer is engineered on a high-stability optical bench (450 mm x350 mm x 235 mm, 14.2 kg) designed for easy installation, superior manufacturing quality, and convenient maintenance. It features a fully sealed, desiccated optical bench pod that completely shields sensitive internal optics from moisture.

• 30° Incident High-Stability Interferometer: Features a Michelson interferometer configured at a precise 30° angle of incidence. This optomechanical layout is enhanced with permanent dynamic alignment to eliminate alignment drift during active mechanical scanning.

• Real-Time Kinematic Verification Window: The outer chassis integrates a dedicated viewing window directly over the moving mirror assembly. This allows laboratory personnel to visually monitor the mechanical scanning operation status in real time.

• Germanium-Coated KBr Substrate Beamsplitter: Optically optimized with a premium Germanium coating plated onto a high-purity Potassium Bromide KBr substrate to ensure maximum mid-infrared modulation efficacy.

• Integral Moisture Protection Subsystem: To prevent crystal deliquescence, the internal architecture combines a fully sealed enclosure with a built-in, highly efficient renewable desiccant matrix. Users can rapidly extract, dry, and replace the desiccant cell block, significantly extending the service life of key optical components.

Key Features

• Spectral Range: 800–3500 cm⁻¹

• Resolution: Better than 1.0 cm⁻¹

• Signal-to-Noise Ratio: 15,000:1

• Beam Splitter: Germanium-coated KBr substrate

• Light Source: High-efficiency, long-life ceramic light source

• Interferometer: Michelson design with 30° incidence angle

• Detector: High-sensitivity DLATGS with moisture-proof film

• Connectivity: USB 2.0/3.0

• Software Compatibility: Windows XP/7/8/Vista

Product Presentation

LIDA-20, developed by Tianjin Hench Technology Co., Ltd. through careful independent research, is a cost-effective FTIR. It is easy to install, simple to operate, and convenient to maintain. With these features, it can be widely applied in many fields such as biomedicine, material science, petrochemicals, food safety, and environmental protection, making it an indispensable spectral analysis instrument for production and scientific research.

Item	Specification
Spectral region	800~350 cm⁻¹
Resolution ratio	Than1.0 cm⁻¹
SNR	15000:1
Beam splitter	Germanium plating on KBr substrate
Light source	High energy, high efficiency, long life ceramic light source
Interferometer	Michelson interferometer at 30 degrees of incidence
Acceptor	High sensitivity DLATGS receiver with moisture-proof film
Size	450 mm × 350 mm × 235 mm
Weight	14.2 kg
Data transfer	USB 2.0
Support system	Windows XP/7/8/Vista
100% tiltrange of the I line	Than 0.5% (2200~1900 cm⁻¹)

Technical Attributes

• Optical System: High-stability Michelson interferometer with permanent dynamic alignment. Features a fully sealed, desiccated optical bench to shield sensitive potassium bromide (KBr) beamsplitters from moisture.

• Wavelength Range: 7,800 ~ 350 cm-1 (Optimized for standard mid-infrared analysis).

• Spectral Resolution: Better than 0.5 cm-1 (Fully adjustable to meet both routine QA/QC and high-resolution academic research requirements)..

• Signal-to-Noise Ratio (SNR): Up to 40, 000 :1 (Peak-to-peak, 1-minute scan), ensuring exceptional sensitivity for trace element detection and weak band analysis.

• Detector Options: High-sensitivity pyroelectric DLATGS detector (Standard) or liquid nitrogen-cooled MCT detector (Optional for ultra-fast or micro-sampling applications).

• Light Source: Long-lifetime, high-intensity air-cooled ceramic infrared source, stabilizing thermal output within minutes of boot-up.

Instrument Operation Principle

The LIDA-20 FTIR operates on the definitive framework of interferometric spectral frequency modulation. Polychromatic infrared radiation emitted from the high-emissivity ceramic source is collimated and directed into the Michelson interferometer configuration. Within this matrix, the beam encounters the Germanium-coated KBr beamsplitter, splitting into two mutually perpendicular paths toward the fixed and mechanically scanning moving mirrors to induce a continuously varying optical path difference (OPD).

Upon recombination, the resulting modulated interferometric beam—now superposed with macroscopic interference fringes—is irradiated through the sample matrix, where selective molecular vibrational absorptions occur. This remaining throughput beam, constituting a sample-encoded interferogram, is captured by the high-sensitivity DLATGS pyroelectric detector. The localized workstation software executing the continuous Fast Fourier Transform (FFT) algorithm deconvolutes the digitized temporal interferogram, mathematically translating it into a highly resolved, localized wavenumber domain spectrum (800~350 cm-or7,800~350 cm-).

High-Throughput Sample Chamber & Universal Accessory Ecosystem

The large-format, open-architecture sample warehouse compartment accommodates an extensive, alignment-free selection of specialized sample preparation and analysis accessories:

• Solid-State Sample Interfaces: Designed to seamlessly host universal and magnetic sample holders, standard transmission slide sample holders, agate mortars, high-purity KBrspectral powder, and standard IR Dies used with manual or automatic hydraulic pellet presses for compiling standard ф13mm pellets.

• Attenuated Total Reflection (ATR) Modules: Supports high-throughput ATR clamping units, bypassing traditional pelletizing constraints to allow direct surface analysis of polymers, composites, and coatings.

• Fluid & Gas Phase Diagnostics: Fully compatible with fixed liquid cells, removable liquid cells, lock-type sample holders, quartz cuvettes, custom cell racks, and dedicated long-path gas cells for environmental monitoring and volatile analysis.

Cross-Industry Research & Production Applications

The LIDA-20 is an indispensable analytical instrument across high-compliance industrial and scientific research sectors:

• Materials Science: In-depth characterization of polymers, advanced composites, functional coatings, and thin-film electronics.

• Biomedicine & Pharmaceuticals: Detailed molecular identification of active pharmaceutical ingredients (APIs), proteins, and structural biomolecules.

• Petrochemical Engineering: Rigorous QA/QC evaluation of fuels, raw lubricants, and complex chemical distillates.

• Food Safety Metrology: Precise detection of chemical additives, foreign contaminants, and product authenticity testing.

• Environmental Protection: Real-time monitoring of atmospheric pollutants, volatile organic waste analysis, and water quality testing.

About Hench Technology Co., Ltd.

Hench Technology Co., Ltd. is a leading manufacturer of Fourier transform infrared spectrometers and other laboratory instruments. With a commitment to innovation and quality, Hench provides a comprehensive range of lab supplies to support scientific research and industrial applications.

Core Equipment Analytics

• Mechanical Integrity: Engineered with a rigid structural Upright column and an ergonomic Cantilever swinging arm to support the heavy-duty alignment Screw without load deformation.

• Compaction Matrix: Features high-precision Built-in Dies acting inside the Isostatic Pressure Chamber to deliver uniform, 360° fluid-isotropic particle densification.

• Smart Interface & Safety: Driven by an automated Touch LCD Screen with localized USB Data Transfer for logging, fully enclosed behind a transparent, impact-resistant Plexiglass Protection safety door.

Integrated Accessory Ecosystem

• Pellet Preparation: Compatible with manual IR Pellet Presses, heavy-duty Automatic Hydraulic Presses (no stripper mold required), precision IR Dies, and deep-walled Agate Mortars.

• Spectroscopy Tooling: Supports specialized ATR units, Universal/Magnetic/Lock-Type Sample Holders, benchtop IR Ovens, and IR Heating Dies for dynamic thermal analysis.

• Phase Transmission Windows: Includes specialized Gas Cells, Removable/Fixed Liquid Cells, and precision-polished replacement optics (KBr, CaF₂, NaCl, ZnSe, BaF₂ Windows).

• Consumables & Calibration: Provides high-purity KBr Spectral Purity Powder, FTIR Drying Retarder, Polystyrene Validation Films, and hermetically sealed FTIR Moisture-Proof Boxes.