1. Optical system

VL-4000 direct reading spectrometer adopts a brand-new optical system design, which combines optimized pixel resolution technology and grating spectrometry technology, representing the direct reading spectroscopy technology of the digital age.

The spectroscopic system realizes full spectrum reception within the analysis band, and each element uses multiple spectral lines for analysis and comprehensive output, with a large dynamic range and accurate results. The detectors placed meet the reception of all spectral lines within the analysis band, realize the simultaneous measurement of multiple spectral lines of the same element, and automatically select the output.

2. Software development

When the VL-4000 direct reading spectrometer is excited each time, the optical system automatically scans the spectral line to ensure the correctness of the reception and eliminate the tedious peak scanning work.

The full spectrum technology automatically traces and adjusts the optical path. When the sample is excited, the instrument automatically identifies the specific spectral line on each detector, compares it with the original storage line, determines the drift position, and finds the current pixel position of the analysis line for measurement. Eliminate the spectral drift caused by changes in temperature, air pressure, vibration, etc., while the spectrum using traditional photomultiplier tube technology must be manually fine-tuned, which requires high technical requirements. The full spectrum technology automatically and quickly addresses, avoiding laborious manual operations and human errors.

3. Full spectrum technology

The VL-4000 direct reading spectrometer adopts full spectrum direct reading technology. The instrument can add spectral lines and matrix without adding hardware facilities to achieve multi-matrix analysis. Customers can add the types of matrix and elements to be analyzed on the instrument according to actual needs during use, and these tasks can be conveniently completed on site. Compared with similar spectrometers using PMT technology, it requires extensive hardware changes. At the same time, due to the configuration limitations of the initial instrument, it may not be possible to add the matrix or elements required by the customer.

4. Spark stand design

The spark stand of the VL-4000 spectrometer has been completely redesigned. In addition to retaining the advantages of the traditional spark stand, it has been optimized accordingly for new application requirements. The sealed design is adopted, and the structure of the entire spark stand is sturdy, which maintains the stability of the spark stand structure when the instrument continues to use high-temperature spark excitation.

The spark stand improves the injection direction of the argon gas flow through changes in the structural design, greatly reduces the residue of spark excitation on the spark stand, and makes the cleaning and maintenance of the spark stand simple.

The VL-4000 spectrometer retains the design of an open sample stand, which makes the placement and analysis of samples easier, and sample processing is also simpler than traditional spectroscopy.

5. Jet electrode technology

The VL-4000 spectrometer uses jet electrode technology (JET STREAM). In the excitation state, an argon jet flow will be formed around the electrode. This technology will bring the following advantages: The argon flow around the excitation point ensures that the excitation process is not disturbed by the outside world. It saves the use of argon and reduces the cost of use for customers. The sample stage does not need to be sealed, and small samples such as wires can also be analyzed very conveniently with the help of adapters. The pull-out front cover makes it easier to clean and maintain the excitation stage.

6. Incident light path design

The incident light path design of the VL-4000 spectrometer is simple. By directly connecting the incident light path to the light chamber system, the two lens incident windows ensure that dust and protection are separated independently, and maintenance and cleaning become very convenient. Customers can operate it by themselves in daily work;

7. Circuit system

The circuit system of the VL-4000 spectrometer has been completely redesigned. The spectrometer uses synchronous real-time digital readout technology. Compared with the traditional sequential readout technology, the analysis time and data stability will be greatly improved.

The VL-4000 spectrometer uses a fully digital plasma spark light source technology. All excitation parameters can be customized by the user through the user interface according to actual needs.

The VL-4000 spectrometer completely separates the circuit system from the optical system, and places the circuit system in the outer part of the instrument light chamber. This design greatly improves the heat dissipation function of the instrument and makes the subsequent maintenance of the instrument very convenient.

8. Personnel training

The operating software of the VL-4000 spectrometer is very simple and easy to learn, with full Chinese or English menus. Operators who have no knowledge of spectral instruments only need simple training to use the instrument.

VL-4000 direct reading spectrometer can be used for various analyses in metallurgy, casting, machinery, scientific research, commodity inspection, automobile, petrochemical, shipbuilding, electric power, aviation, nuclear power, metal and non-ferrous smelting, processing and recycling industries.