In terms of detection methods, the current iron content detection mainly includes atomic absorption method and atomic emission method. Although atomic absorption spectroscopy is accurate, its speed is slow and the operation is complex. Atomic emission spectroscopy has been widely used, but it cannot effectively detect large worn particles (whether it is rotary electrode or inductive ion coupling). Insensitivity to large particles can sometimes be fatal in monitoring and diagnosis, as particles normally worn by friction pairs are generally less than 10 μ m. And>15 μ The metal particles of m are generated due to abnormal wear.

As for the detection of iron particles, the compensatory method is to increase iron content monitoring and use an iron content meter. The iron content meter developed by our company is a measurement device based on the principle of electromagnetic induction. The measurement device is equipped with a sensitive electromagnetic coil. When the oil is placed in a magnetic field, the ferromagnetic abrasive particles in the oil will cause changes in the magnetic field strength. The magnitude of the coil's electromagnetic induction intensity is well correlated with the content of ferromagnetic abrasive particles. It can conveniently and quickly detect the content of ferromagnetic metal chips in lubricating oil, hydraulic oil, and grease, thereby judging the mechanical wear condition.

Application field:

Machine system wear monitoring

Evaluation of lubricating oil for machine systems

Evaluation of ferromagnetic debris in gearbox

Residual assessment of bearing oil lamps