ACOspector is an online instrument which uses acoustics to analyze liquids in pipes continously and in real time; without invasive installation procedures. The technology is easy to use, flexible and opens up whole new opportunities for continuous monitoring, analysis and optimization of industrial processes.


to hear the differences making a difference

ACOspector uses the technology active acoustic spectroscopy to analyze complex fluids in the process industry. To analyze the fluid, a known acoustic signal is transmitted through the pipe wall and the fluid. The signal is affected by the fluid properties, and by analyzing the recorded acoustic spectrum conclusions regarding the fluid and its properties can be drawn.


from sound to information

The acousic spectrum is utilized to determine the wanted fluid properties based on an earlier established model connecting acoustic properties to fluid properties. The model is unique to each application and tailored to each instrument.


information continuous in real time

The property of interest, analyzed in the fluid, or the prediction, is conveyed to the factory system via supplied 4-20 module or, as optional extra, Anybus.


ACOspector is non-invasive and can be installed during full operation without affecting the process.

  • Safe maintenence
  • Quick installation
  • Handles opaque and corrosive fluids


ACOspector is taught to capture the wanted fluid parameter and can be configured to determine multiple properties simultaneously.

  • Visualizes the process
  • Captures the variation
  • Learns the process

Real time

ACOspector operates in real time and the reporting interval to the factory is configurable down to a few seconds.

  • Save time and money by seeing the variations when they happen
  • Increase process knowledge
  • See the effect of process changes immediately

Product specification

The technology

Active acoustic spectroscopy

The product ACOspector uses the technology active acoustic spectroscopy to analyze the process fluid. Using this indirect method, acousic changes of the system are observed which are mathematically linked to process variables of interest.

The instrumentation - what you see by the pipe

The instrumentation consists of sensors for generation and recording of sound, and an amplification and process electronic circuit. Additionally, a data unit, connected via Ethernet, is used for control, computation intensive signal processing and prediction of the fluid property to analyze.

The sensors are attached to the outside of the pipe using heat-resistive adhesive and the signal processing unit is placed nearby. The sensors continuously send a custom acousic signal which is processed by the processing unit and relayed to the connected data unit which, after processing, presents the result to the user.