Tianyi Sensor IOT Technology Co., Ltd
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Oil viscosity sensor
Model：FV3
Brand：tianyi
Oil viscosity sensor is used to monitor oil viscosity, density, and temperature in real time, providing real-time, continuous kinematic viscosity monitoring.
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1、Oil viscosity sensor Product Overview
Oil viscosity sensor is used to monitor oil viscosity, density, and temperature in real time, 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
| Measurement indicators | Range | Resolution | Measurement accuracy | |||
| Temperature | -20～125℃ | 0.1℃ | ±0.3℃(25℃) | |||
| Dynamic viscosity | 1～400cP | 0.1cP | ±3% | |||
| 0～1000cP | ||||||
| Density | 600～1250kg/m3 | 0.1kg/m3 | ±3% | |||
| Note: The factory default is calibrated according to 68# hydraulic oil. (Customized calibration of oil products is available) | ||||||
| Electrical parameters | ||||||
| Digital signal output | RS485 MODBUS RTU (default) | |||||
| Simulated current output | 4～20mA (optional) | |||||
| Working voltage | DC12～32V(RS485) | DC20～32V(4～20mA) | ||||
| Working current | ＜20mA (RS485 output) | ＜40mA (4～20mA output) | ||||
| Electrical interface | M8*1, 6-core aviation plug | |||||
| Connect the cable | 6 (core) * 2 meters (standard), 26AWG | |||||
| Refresh time | 1 time/S (power on < 30S) | |||||
| Follow the standard | EN61326-1 | |||||
| EN61326-2-3 | ||||||
| ICES-003 B-level | ||||||
| Temperature parameters | ||||||
| Working temperature | Fluid temperature | Storage temperature | ||||
| -30～70℃ | -20～125℃ | -40～85℃ | ||||
| Structural parameters | ||||||
| Mechanical interface | Structural dimensions | Probe material | Protection level | |||
| Flange (see product structure diagram) | Φ32*56.6mm | 316 stainless steel | IP65 | |||
| Other parameters | ||||||
| Probe allows pressure | The probe allows flow rate | Sensor weight | ||||
| ≤2MPa | ≤3m/s | 150g | ||||
| Communication protocol-cable | ||||||
| red | White | Black | Green | Brown | Blue | |
| DC24V+ | RS485+/A | GND | RS485-/B | 4～20mA ch1 | 4～20mA ch2 | |
Address:https://tianyisensor.com/Oil-Quality-Sensor/Oil-viscosity-sensor.html
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