Oil viscosity sensor

1、Oil viscosity sensor Product Overview

Oil viscosity sensor allows for online monitoring of three oil parameters: viscosity, mass density, and temperature, providing real-time, continuous kinematic viscosity monitoring.FV3 Oil viscosity sensor utilizes a piezoelectric resonant MEMS core element, integrating high-precision signal acquisition and processing units with intelligent algorithms to enable the real-time, simultaneous measurement of liquid temperature, dynamic viscosity, and density.

Application Areas: Hydraulic power units, gearboxes, diesel engines, turbines, air compressors, and similar equipment.

2、Oil viscosity sensor Applicable Oils

Industrial Lubricants: Hydraulic oil, gear oil, turbine oil, transformer oil.

Engine Oils: Diesel engine oil, aviation engine oil.

Light Fuels: Gasoline, kerosene, aviation fuel.

3、Oil viscosity sensor Measurement Principle

The FV3Oil viscosity sensor operates based on the principle of piezoelectric resonance. Driven by an electronic unit, its core oscillator maintains a state of resonance; by precisely measuring changes in characteristic parameters—such as resonance frequency, phase, or amplitude—the device directly calculates the viscosity, density, and temperature of the medium.

Its oscillation period T is correlated with the liquid density: ρ = K0 + K1*T + K2*T² (where K0, K1, and K2 are instrument calibration parameters).

Its oscillation quality factor Q is correlated with viscosity: η = C0 + C1*Q + C2*Q² (where C0, C1, and C2 are instrument calibration parameters).

Kinematic viscosity can also be derived using the following formula: µ = η / ρ (where µ represents kinematic viscosity in mm²/s or cSt; η represents dynamic viscosity in mPa·s; and ρ represents density in g/cm³).

4、Oil viscosity sensor Technical Parameters