What products are involved?

Rheonics SRV viscometer, SRD density-viscosity meter, DVP gas density-viscosity meter and DVM HPHT density-viscosity meter

What is the purpose of this article?

This article explains how Rheonics Filters improve signal stability in Rheonics inline viscometers and density sensors and how to apply them using the Rheonics Control Panel (RCP).

TABLE OF CONTENTS

1. Overview

Rheonics Filters are configuration files loaded into Rheonics Smart Module Electronics (SME) to improve measurement stability and consistency.


These filters fine-tune the internal signal-processing parameters that determine how viscosity and density readings are calculated and smoothed, resulting in more reliable, noise-free data.


This feature is especially valuable in processes where the signal is inherently noisy or unstable.


Rheonics SME-TRD sensor electronics housing showing wiring terminals and communication ports


Figure 1. Rheonics SME-TRD.

2. Use Cases and Benefits

Industrial fluids often show noise in the viscosity signal due to entrained air, turbulence, or suspended solids. Rheonics Filters mitigate these effects by loading a configuration file that can be loaded in Rheonics SME.


Typical benefits

  • Reduced noise for more representative viscosity and density measurements.
  • Improved repeatability in noisy or variable systems.
  • Reduces system noise to achieve reliable process control with sensor feedback.
  • More consistent data for quality tracking and reporting.
  • Reduces need for external smoothing or recalculation.


 Plot showing noisy raw viscosity readings (blue) compared to a smoothed trend line (orange) in an inline viscometer measurement

Figure 2. Noise on viscosity signal

3. Why Use Rheonics Filters?

While process noise can often be mitigated by control-system filtering, Rheonics Filters provide a field-tested, out-of-the-box solution specifically tuned for Rheonics inline sensors.


They are validated across multiple industries and process conditions to deliver reliable signal stability without additional integration complexity.


This feature reflects Rheonics’ commitment to providing complete, plug-and-play measurement solutions that simplify setup and integration time.

4. How to Apply Filters

Filters are delivered as configuration files and are custom generated by the Rheonics Support Team based on your process characteristics and measurement goals.


To apply a filter:

  • Contact Rheonics Support and describe your process and measurement goals.
  • Export and send your current SME configuration file.
  • Rheonics Support will send back a configuration file tailored to your SME.
  • Load the configuration file using the Rheonics Control Panel (RCP) software.


Screenshot of the Rheonics Control Panel (RCP) showing the Import button used to load a filter configuration into the SME for viscosity and density measurements

Figure 3. Importing a filter configuration file in the Rheonics Control Panel (RCP) 

 

For more information on Rheonics RCP, review our article: Running the RCP Program : Rheonics Support.


Rheonics RCP Manual is available at: Rheonics Control Panel User Manual


5. References