Quality monitoring of fuels

Quality monitoring of fuels

Quality monitoring of fuels

The density of a liquid depends on its composition. If different liquids are mixed, the correct mixing ratio can be checked with density measurements. For example, in the case of heating oil: according to legal requirements, 7 % biodiesel may be added to heating oil. As this is tax-free, it is often operated at the limit of legality. With the density sensor DLO-M1 from TrueDyne, they monitor the quality of the fuel oil during the running process.
1. tank truck for the supply of fuel oil. 2 The sensor measures the density of the fuel oil directly at the transfer point. The data collected on site shows whether the correct media are being refueled in the correct ratio. 3 The product is handed over to the customer. Good quality is guaranteed.

Sensors for this application

Density sensor DLO-M1 for liquids

The DLO-M1 sensor measures the density of liquids in a microelectromechanical system (MEMS system). Within the MEMS system, the liquid is directed to an omega-shaped microchannel, the so-called omega chip. This tiny silicon tube – it is hardly thicker than a hair – is vibrated for the measurement. The density of the medium to be measured can be derived from the natural frequency of this oscillation.

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Data sheet
Viscosity sensor VLO-M1 for liquids

Viscosity data can be used to determine the properties of liquids and monitor their quality. The sensor measures the viscosity in the running process – even in the smallest of spaces. Irrespective of the viscosity, the sensor also measures the density and temperature of the medium being measured.

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Data sheet

Other applications you might be interested in

Monitoring of fuel concentrations
From volume (l) to mass (kg)
Monitoring of welding gas mixtures
Monitoring of gas mixtures for food packages

Michael Faraday *22.09.1791

Michael Faraday *22.09.1791

Today would have been Michael Faraday’s birthday. Maybe this was a flash of inspiration on his part?

Sensors that might interest you

Applications that might interest you

Monitoring of fuel concentrations
From volume (l) to mass (kg)
Monitoring of welding gas mixtures
Monitoring of gas mixtures for food packaging

Other articles that might interest you

Article: In-line measurements of the physical and thermodynamic properties of single and multicomponent liquids

Article: In-line measurements of the physical and thermodynamic properties of single and multicomponent liquids

Microfluidic devices are becoming increasingly important in various fields of pharmacy, flow chemistry and healthcare. In the embedded microchannel, the flow rates, the dynamic viscosity of the transported liquids and the fluid dynamic properties play an important role. Various functional auxiliary components of microfluidic devices such as flow restrictors, valves and flow meters need to be characterised with liquids used in several microfluidic applications.

read more
Article: Multiparameter Gas-Monitoring System

Article: Multiparameter Gas-Monitoring System

The aim of the study is to develop a compact, robust and maintenance free gas concentration and humidity monitoring system for industrial use in the field of inert process gases. Our multiparameter gas-monitoring system prototype allows the simultaneous measurement of the fluid physical properties (density, viscosity) and water vapor content (at ppm level) under varying process conditions.

read more

Measurement of aqueous media

Measurement of aqueous media

Mark Twain is said to have said: “Writing is easy. You just have to leave out the wrong words.” In our case it is a complete sentence that we can omit from the VLO-M1 viscosity and density sensor data sheet.

Until that was the case, we needed a lot of developer sweat, brain and endurance.

Now the time has come, and we can delete the following sentence from the data sheet in the chapter “Permissible media”:

Do not use aqueous media. –

With the current VLO-M1 viscosity and density sensors and the DLO-M1 density sensor, you can now also measure aqueous media.

We are looking forward to many new applications. Do you already have an idea? Get in touch with us – info@truedyne.com

Speak Like a Pirate Day

Speak Like a Pirate Day

Aaaarrrrr! Today is “Speak Like a Pirate Day”. We are quoting Elizabeth here (Pirates of the Caribbean): There will come a time when you have a chance to do the right thing. Such as arranging a date to meet with us for some no-obligation advice – info@truedyne.com
Leonhard Euler *18.09.1783greg

Leonhard Euler *18.09.1783greg

Today would have been Leonhard Euler’s birthday. We find his theories the “maximum”.

Sensors that might interest you

Applications that might interest you

Monitoring of fuel concentrations
From volume (l) to mass (kg)
Monitoring of welding gas mixtures
Monitoring of gas mixtures for food packaging

Other articles that might interest you

Article: In-line measurements of the physical and thermodynamic properties of single and multicomponent liquids

Article: In-line measurements of the physical and thermodynamic properties of single and multicomponent liquids

Microfluidic devices are becoming increasingly important in various fields of pharmacy, flow chemistry and healthcare. In the embedded microchannel, the flow rates, the dynamic viscosity of the transported liquids and the fluid dynamic properties play an important role. Various functional auxiliary components of microfluidic devices such as flow restrictors, valves and flow meters need to be characterised with liquids used in several microfluidic applications.

read more
Article: Multiparameter Gas-Monitoring System

Article: Multiparameter Gas-Monitoring System

The aim of the study is to develop a compact, robust and maintenance free gas concentration and humidity monitoring system for industrial use in the field of inert process gases. Our multiparameter gas-monitoring system prototype allows the simultaneous measurement of the fluid physical properties (density, viscosity) and water vapor content (at ppm level) under varying process conditions.

read more

John Dalton *06.09.1766

John Dalton *06.09.1766

Today would have been John Dalton’ birthday. Without doubt this post is (will be) of interest to those who are interested in this post.

Sensors that might interest you

Applications that might interest you

Monitoring of fuel concentrations
From volume (l) to mass (kg)
Monitoring of welding gas mixtures
Monitoring of gas mixtures for food packaging

Other articles that might interest you

Article: In-line measurements of the physical and thermodynamic properties of single and multicomponent liquids

Article: In-line measurements of the physical and thermodynamic properties of single and multicomponent liquids

Microfluidic devices are becoming increasingly important in various fields of pharmacy, flow chemistry and healthcare. In the embedded microchannel, the flow rates, the dynamic viscosity of the transported liquids and the fluid dynamic properties play an important role. Various functional auxiliary components of microfluidic devices such as flow restrictors, valves and flow meters need to be characterised with liquids used in several microfluidic applications.

read more
Article: Multiparameter Gas-Monitoring System

Article: Multiparameter Gas-Monitoring System

The aim of the study is to develop a compact, robust and maintenance free gas concentration and humidity monitoring system for industrial use in the field of inert process gases. Our multiparameter gas-monitoring system prototype allows the simultaneous measurement of the fluid physical properties (density, viscosity) and water vapor content (at ppm level) under varying process conditions.

read more

Cooperation with Testo Industrial Services

Cooperation with Testo Industrial Services

Cooperation

Manufacturer & service provider:
Exchange of experience in density
measurement technology

«„Our measuring systems systems meet the highest standards of accuracy. With our partner and calibration expert, Testo lndustrial Services GmbH, we can continuously test and prove this quality requirement.
The measure­ ment results also help us to standardize our products for future calibration processes.“
»

Josua Ritter

Managing Director, TrueDyne Sensors AG

A close cooperation for reliable measurement results of density sensors

Over the last few years, TrueDyne Sensors AG has acquired a great deal of expertise and know-how in the field of micro sensor technology and vibrating systems. The density module from TrueDyne Sensors AG is a flexural resonator measuring system in the MEMS technology with a measuring channel in sub-millimeter size. Measuring systems like these enable numerous companies to expand and improve their products and production sequences within the process. The high accuracy, the extremely compact design and the real-time measurement play a central role in these density modules.

Testo lndustrial Services GmbH support the manufacturer of density sensors in ensuring these quality criteria. Because detailed measurements in an independent calibration laboratory ensure safety for the customer. The two companies – manufacturer and service provider, specialized in the field of flow, introduced a close cooperation project in 2018.

The goal – Cooperation
Testo & TrueDyne

The goal of the cooperation project was to have the DLO-M1 density sensor from TrueDyne Sensors AG verified, under laboratory conditions, by a manufacturer-independent calibration service provider. Above all, the main issue was to test the sensor‘s „suitability for everyday use“. This serves as the basis for recommending the density sensor to users of calibration systems.

Services provided by Testo Industrial Services GmbH

  • Provision of laboratory space and calibration test benches
  • Many years of know-how in the field of calibration technology
  • Definition of test procedures and measurement methods
  • Derivation of argumentation approaches based on the results

The procedure – Performance
of density measurements

Equipment used for the measurements:

  • Liquid calibration stand – Testo KKF80 MU ± 0.08 % F.S.
  • Temperature sensor 1/10 DIN
  • Pressure sensor ± 0.04 % F.S.
  • DLO-M1 density sensor – TrueDyne Sensors AG
  • VDI Heat Atlas 10th edition 2006, Dba14 Table 12. Kinematic viscosity of water
  • Density table according to NIST

The challenges
Factors to consider during density measurements

  • Measurement errors due to the smallest of temperature differences
  • Consideration of reference systems, e.g. density table for water, mineral content, compressibility of the medium
  • Reproducibility of the measurements for the comparison of measurement results

The result
Long-term use of measurement results

The cooperation project resulted in the successful verification of the DLO-M1 density sensor by the manufacturer-independent calibration laboratory Testo Industrial Services GmbH.

The following results can be derived:

  • The measurement results were very convincing. The density deviation was well clearly below ± 0.2 kg/m3, which leads to a measurement uncertainty of < 0.02 % of the measured value.
  • The measured values could be tested in a reproducible manner at various pressure levels.
  • The suitability of the DLO-M1 density sensor from TrueDyne Sensors AG is ensured for calibration systems.
Liquid calibrator for small flow rates of 0.8 ml/min – 40 l/min

Testo Industrial Services GmbH

Calibration service provider for more than 300 accredited calibration procedures

Testo Industrial Services GmbH is one of the leading calibration service providers in Germany. The calibration laboratory for flow meters performs manufacturer- and media-independent calibrations for liquids and gases. As the field of calibration is extremely diverse, a wide range of test benches and calibrators are required. Testo uses self-developed test benches. These enable the calibration of different flow rates with very low measurement uncertainties.

TrueDyne Sensors AG

Manufacturer of density and viscosity sensors in sub-millimeter sizes

TrueDyne Sensors AG is a subsidiary of Endress+Hauser. With the company foundation in 2015, the main focus of competence was set on the development of smallest sensor technology. The heart of the technology is the OMEGA-chip, whose function is based on the flexural resonator measuring principle. The chip in the MEMS technology consists of a measuring channel in sub­ millimeter size and an integrated platinum temperature sensor for real-time on-board temperature measurement.
The measuring channel is hardly thicker than a hair and thus opens up new prospects for density measurement technology directly in the process.

Density sensor DLO-M1  – TrueDyne Sensors AG

Link zu Testo

Testo
Industrial Services GmbH
Gewerbestrasse 3
D-79199 Kirchzarten
Germany

 

Link to the DLO-M2

More information about the DLO-M2 density sensor for liquids

Link to the Data sheet

Download DLO-M2 Liquid Density Sensor Data sheet (PDF)

Link to the Factsheet

Download factsheet of DLO-M2 density sensor for liquids (PDF)

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