Comparison of Infrared Spectroscopy and Raman Spectroscopy

By conducting two analyses, it is possible to obtain more detailed and accurate results!

This document introduces the characteristics of each spectroscopy method and the spectra obtained when comparing infrared spectroscopy and Raman spectroscopy. Both infrared spectroscopy and Raman spectroscopy are vibrational spectroscopies that investigate the vibrational energy of molecules, but the shapes of the spectra obtained from each method differ even when measuring the same substance. Infrared spectroscopy and Raman spectroscopy are complementary; information that cannot be obtained through a single analysis can be acquired more detailed and accurately by conducting both analyses. For more details, please refer to the catalog provided. 【Characteristics of Infrared Spectroscopy】 ■ Infrared absorption occurs when the dipole moment changes with vibration (infrared active). ■ Vibrations that cause a distortion in the symmetry of the molecule (leading to an electronic dipole) are highly infrared active. *For more information, please refer to the PDF materials or feel free to contact us.

• Vibration Testing

Spectroscopic analysis is suitable for component analysis and qualitative analysis of foreign substances.

We will introduce the comparison between Raman spectroscopy analysis by Aites Co., Ltd. and FTIR. Spectroscopic analysis is suitable for component analysis of foreign substances and qualitative analysis. Both Raman and FT-IR can obtain spectra based on the structure of the analysis target. However, since each has its strengths and weaknesses, it is necessary to choose between the two depending on the analysis target. 【Features】 ■ Measurement in the order of several micrometers, which is difficult to analyze with IR, is possible. ■ No sampling is required. *For more details, please refer to the PDF materials or feel free to contact us.

• Testing Equipment and Devices

Detect and analyze the absorption wavelengths of organic molecular groups (functional groups)!

At Aites Co., Ltd., we conduct "FT-IR analysis" to confirm the degradation of resins. The degradation of resins can manifest as visible discoloration or invisible changes. Discoloration can be detected through visual changes, but invisible changes can lead to a decrease in strength and become the source of various issues. IR analysis allows us to understand the changes in molecular structure caused by these alterations. *For more details, please refer to the PDF document or feel free to contact us.*

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• Analysis Services

We will suggest appropriate analysis methods based on the condition of polymer materials and samples!

At AITES Co., Ltd., we conduct material degradation analysis. We propose appropriate analytical methods based on the condition of polymer materials and samples. By analyzing the degradation process that the material has undergone and optimizing the polymer materials and usage environment, it is possible to extend the product's lifespan. *For more details, please refer to the PDF document or feel free to contact us.

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• Contract Analysis
• Analysis Services

It is possible to monitor the progress of the adhesive curing reaction (degree of curing)!

FT-IR spectra sensitively reflect the bonding states of organic materials, making it possible to monitor the progress of adhesive curing reactions (degree of curing). The procedure for measuring the degree of curing of the resin involves comparing the spectra of unreacted materials with those of materials after 100% reaction to identify the changing regions. The degree of curing for unreacted materials is set at 0%, and that for reacted materials is set at 100%. The peak intensity of the measurement sample spectrum is interpolated to determine the reaction rate (degree of curing). 【Procedure for Measuring Degree of Curing】 ■ Compare the spectra of unreacted materials with those of materials after 100% reaction to identify the changing regions. ■ Set the degree of curing for unreacted materials at 0% and that for reacted materials at 100%. ■ Interpolate the peak intensity of the measurement sample spectrum to determine the reaction rate (degree of curing). *For more details, please refer to the PDF document or feel free to contact us.

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• Other contract services

Analysis of inorganic compounds such as metal oxides is also possible! We will introduce the analysis of black spots on the surface of copper-clad laminates.

We would like to introduce a case where discoloration on the surface of a copper-clad laminate was analyzed using Raman spectroscopy. Our Raman spectral analysis can analyze not only organic substances but also inorganic compounds such as metal oxides. Please feel free to contact us when needed. [Analysis Details] ■ Analysis of black spots on the surface of the copper-clad laminate - Slight discoloration is observed on the surface - Upon magnification, a condition resembling black stains is seen - A spectrum of CuO was obtained from the discolored area - The nature of the discoloration is believed to be copper oxide formed on the surface of the copper *For more details, please refer to the PDF document or feel free to contact us.

• Contract Analysis
• Analysis Services

Depth-direction measurements using Raman spectroscopy! Material analysis of each layer is possible from the surface of multilayer films.

Our "Micro Raman Spectrophotometer" employs a confocal optical system, allowing for the adjustment of the focal position in the depth direction, similar to a microscope, enabling material analysis of each layer from the surface of multilayer films. Using the confocal function of the micro Raman spectrophotometer, the focus of the Raman laser light can be varied in the depth direction. Additionally, by continuously changing the focal position, it is possible to obtain spectra continuously in the depth direction. 【Features】 ■ Adoption of a confocal optical system ■ Enables material analysis of each layer from the surface of multilayer films ■ Capable of varying the focus of the Raman laser light in the depth direction ■ Allows for continuous spectral acquisition in the depth direction *For more details, please refer to the PDF document or feel free to contact us.

• Analytical Equipment and Devices
• Spectroscopic Analysis Equipment
• Contract Analysis

We have published a technical column titled "How to Choose ToF and 3D Sensors" as a downloadable document (A4, 4 pages, with illustrations). You can view it from the related catalog below. 【For those who】 - Are considering 3D sensors for the first time - Want to clarify the differences between ToF, stereo cameras, and LiDAR - Want to determine if 3D can be used for appearance inspection 【Content of the document】 - Comparison of the mechanisms of the three methods with diagrams / Quick reference table for differences between methods - How to choose based on applications (want to count people / want to measure distance / want to inspect shapes / want to use outdoors) - Suitable and unsuitable targets for 3D in appearance inspection - Three common mistakes / Five items to check during selection We offer rental of demo units of the 3D ToF cameras from meere company. Please let us know the target objects, installation distance, and usage environment.

Fukuda Corporation has been pursuing leak detection for 60 years and is dedicated to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing performance. We will propose suitable testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

This is a collection of links to Fukuda's technical columns. It covers various topics related to leak tests and more... Please check the related links for more information.

In public works, materials that improve the site are required, including safety measures, workability, environmental considerations, labor-saving, and heatstroke prevention. Hyper CLT sheets, utilizing wood as civil engineering CLT materials, have been adopted in many civil engineering sites, including public works. They can be used for various applications such as temporary roads, access roads, heavy machinery work yards, material storage areas, mud prevention, and worker pathways. The 5×10 sheet weighs about 230 kg, and the 5×20 sheet weighs about 460 kg, making them lightweight and easy to install and remove even with small machinery, contributing to labor-saving in construction. Additionally, they have unique characteristics of wood, such as glare and noise reduction, and CO2 fixation, making them suitable for safety measures, environmental considerations, and creative proposals. Hyper CLT sheets are registered as a technology with the Ministry of Land, Infrastructure, Transport and Tourism under NETIS "TH-250021-A." As a new civil engineering material utilizing wood, which has a proven track record in public works, we encourage you to consider it.

Dear Valued Customers, Notice of Relocation of the Kansai Sales Office We hope this message finds you well during the height of summer. We sincerely appreciate your continued support. We would like to inform you that our Kansai Sales Office will be relocating to the address below in order to enhance our services. Please note that our Kansai Factory will continue operations at its current location as usual. With this change, all of our employees will strive to meet your expectations even more, and we kindly ask for your continued patronage. Start Date of Operations: August 24, 2026 (Monday) Address: 4th Floor, Marushin Building, 11-1 Awazu-cho, Otsu City, Shiga Prefecture, 520-0832 Phone: 077-548-6081 Fax: 077-548-6082 *The phone and fax numbers will remain unchanged. Approximately a 1-minute walk from the South Exit of Ishiyama Station on the JR Biwako Line and Keihan Ishiyama Sakamoto Line.