Chemical & process monitoring
Monitor liquid concentration, raw materials and resin drying.

Candidate hardware
Online spectral analyzerContinuous acquisition at process points, with optics selected for the sample.
FT-R4 →
Standard online liquid analyzerOnline liquid testing; review installation and communication requirements.
Zhituo →
Explosion-proof online liquid analyzerFor hazardous-area requirements, verify the operating environment and model documentation.
XT-R4-T1 →Validate candidates against the sample, target measurement, optical setup and deployment conditions. Consult product specifications and sample test results.
Explore related applications

Online sodium-hypochlorite monitoring
Follow available chlorine and free alkali during sodium-hypochlorite production.
Project example: Gonggong Intelligence — chlor-alkali process measurement.
Read application details
Smart-manufacturing provider Gonggong Intelligence uses VISPEK Online Liquid Spectral Analyzer miniature online spectroscopy for chlor-alkali measurement. Its machine-learning model reads sodium-hypochlorite absorption in the ultraviolet range and free-alkali absorption in the near-infrared range to quantify both concentrations in real time. The source data reports a 70% reduction in process-adjustment response time, a 76% narrower available-chlorine fluctuation range and average annual savings of RMB 2 million per customer.

Intelligent micro-etching process-control solution
Measure copper-ion concentration to support replenishment and control in micro-etching.
Project example: Kelon Technology — copper-ion measurement linked to dosing.
Read application details
Kelon Technology integrates VISPEK miniature online spectral modules into a micro-etching analysis system. The system collects copper-ion spectra and uses multi-parameter models to quantify concentration in real time. It also links to automatic dosing units for micro-etch replenishment and copper-output control, providing process data for PCB manufacturing.



Portable solid analyzer
Portable liquid analyzer





Embedded sensor module








Multispectral camera






