Handheld Raman Spectrometer: On-site Material Identification and Analysis

The series of handheld Raman spectrometers launched by Shandong Hengmei Electronic Technology Co., Ltd. integrates a high-sensitivity detection system and an intelligent cloud service platform, with excellent detection performance and reliable environmental adaptability. We are committed to providing efficient and reliable on-site testing tools for users in various industries through professional handheld Raman spectrometer solutions, helping to continuously improve safety management and quality control levels.

Technical principle:

The handheld Raman spectrometer is based on the Raman scattering effect. When a monochromatic laser (785nm) is irradiated onto the sample, photons and molecules undergo inelastic collisions, resulting in a change in the frequency of the scattered light. This frequency shift is directly related to the vibrational/rotational energy level characteristics of molecules, forming a unique "molecular fingerprint" spectrum.

Core testing process:

Laser excitation: A 785nm laser emits stable laser that penetrates transparent or semi transparent packaging and directly acts on the sample

Signal acquisition: High sensitivity detector collects Raman scattering signals, with adjustable integration time (1ms-10s)

Spectral analysis: Pure Raman spectra were obtained by separating fluorescence interference using a micro confocal optical system (spectral resolution 5cm ⁻¹)

Intelligent matching: Compare the collected spectra with onboard databases (chemicals, explosives, precursor chemicals, etc.) to achieve substance identification

This technology does not require sample pre-treatment and can be directly tested through packaging such as glass and plastic, greatly improving on-site testing efficiency.

Technical advantages:

1. Performance testing

High sensitivity: 200-3800 cm ⁻¹ spectral range, covering the majority of organic compound characteristic peaks

Fluorescence suppression: 785nm laser excitation combined with confocal design effectively reduces fluorescence background interference

Quick detection: Single spectral acquisition can be completed in 500ms, and recognition results can be output within 3 seconds

2.Comprehensive portable design

Lightweight and sturdy: The entire machine weighs only 750 grams and measures 195 × 99 × 35mm, making it easy to operate with one hand

High protection level: IP67 dustproof and waterproof, suitable for complex environments such as outdoor and workshop environments

Long lasting battery life: The lithium battery supports 4-6 hours of continuous operation, meeting the needs of all day testing

3.Intelligent data management

Cloud architecture: supports wireless data transmission, cloud spectral library updates, and private deployment

Multi functional integration: integrating GPS positioning and a 13 megapixel camera to ensure traceability of the detection process

Flexible Expansion: Supports users to create their own spectral library to meet specific detection needs

4.Industry pain points and solutions

Pain point one: Poor timeliness of on-site testing

Traditional dilemma: Samples need to be sent back to the laboratory, and the testing cycle can take several hours to several days

Solution: Handheld Raman spectrometer achieves rapid on-site recognition in 3 seconds and immediately obtains detection results

Pain point 2: Sample destruction during the testing process

Traditional dilemma: chemical analysis, chromatographic testing, etc. require sampling, which destroys the integrity of the sample

Solution: Non destructive testing technology, without touching or damaging the sample, to maintain the integrity of evidence

Pain point three: complex operation, high professional requirements

Traditional dilemma: requiring professional technicians and specific laboratory environments

Solution: One click operation design, intelligent matching algorithm, reducing the threshold for use

The handheld Raman spectrometer has successfully solved the key technical problem of on-site substance identification through advanced laser spectroscopy technology and portable design. Its fast, non-destructive, and accurate detection characteristics make it an important testing tool in fields such as drug regulation, public security law enforcement, chemical safety, and food safety.