What Is an Iron Powder Densitometer?
An iron powder densitometer is a measuring instrument that measures the metal powder contained in lubricants such as grease.
Since iron powder due to abnormal wear in lubricants can lead to reduced performance and failure, signs of failure can be detected early through periodic diagnosis.
Wear diagnosis using a powder densitometer is simple and quick. The concentration can be measured simply by passing the iron powder densitometer through the piping containing the lubricant, and the cause of failure can be noticed earlier than analysis by vibration or other external factors.
Uses of Iron Powder Densitometers
Bearings and gears are used for maintenance inspections, other maintenance, and preliminary diagnostic purposes using lubricants that are prone to wear.
The degree of wear is diagnosed from the concentration of iron powder contained in lubricants such as grease, and a management policy is determined. It is used for equipment that performs rotational operations and performs measurements on a wide range of machines, from general-purpose to high-speed rotating machines.
Principle of Iron Powder Dositometers
Iron powder densitometers detect iron powder concentration using the principle of electromagnetic induction by magnetic balance.
The coil portion that detects iron dust has an excitation coil attached to it to generate a magnetic field, and a magnetic circuit is configured so that the magnetic fields mutually disappear near the detection coil.
On the other hand, when the excitation coil is inserted into the sample, iron powder disturbs the balance of the magnetic field and generates an induced voltage, which is measured by the numerical value of the voltage to calculate the iron powder concentration.