Stargate
SRV-SG Stargate - Inline Viscometer Sensor Through-Tube and Wafer-Cell design
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Rheonics balanced torsional resonator BTR technology for compact and robust probe against external vibration
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Inline viscosity measurement, wide range up to +250,000 cP
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Viscosity uncertainty: 5% of reading (standard)
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Reproducibility better than 1% of reading
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Temperature sensor embedded
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Monitor and track the consistency of any fluid
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Intrinsically safe Ex sensor probe certification available (IECEx, ATEX, JPEx, KCs)
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Powerful electronics for local monitoring and data transmission
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Easy to clean, no maintenance or re-configurations needed for scaling across the production lines

Rheonics SRV Stargate Sensor is an inline viscometer sensor that uses a Wafer Cell Probe design that places the sensor probe sensing element parallel to the process pipeline. This design has key advantages in cleanability, as it reduces the chances of deposits around the sensing element, and improves the probe’s resistance against high loads from high-viscosity fluids at high rates. All Rheonics SRV–SG variants are hermetically sealed, have no moving parts, and are available in pure Stainless Steel 316L body material.
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Rheonics SRV Stargate sensor measures viscosity by means of a balanced torsional resonator (BTR) built in the probe.
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The more viscous the fluid, the higher the damping of the resonator. By measuring the damping, the product of viscosity and density is output by the sensor.
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The resonator is both excited and sensed by means of an electromagnetic transducer mounted in the sensor’s body.
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Viscosity of fluid is measured by the rheonics patented sensing and evaluation electronics and stable, high accuracy and repeatable readings are obtained based on rheonics’ proven gated phase-locked loop technology.


Sophisticated, patented 3rd generation electronics drive these sensors and evaluate their response. Ultra-fast and robust electronics, combined with comprehensive computational models, make SRVs one of the fastest and most accurate in the industry. SRV gives real time, accurate viscosity measurements every second and is not affected by flow variations! Embedded temperature sensor gives instantaneous inline fluid temperature.

