Why Dynostar uses Zemic load cells for their dynamometer

Fatbikes are extremely popular, especially among young people. Fatbikes are electric bicycles with oversized tires. Unfortunately they can also be a danger on the road. Enhancing the bicycles makes it possible to cycle faster than 25km/ph, and a helmet is not mandatory in the Netherlands. This can cause an increase in serious traffic accidents.

Dynostar is a Dutch company that specializes in the development and production of a range of innovative and approved power dynamometers. A dynamometer is a device on which a vehicle while stationary rotates its wheels on rollers instead of while moving on the road. This device is used by the police to determine the maximum speed that a vehicle can reach. Dynostar has been supplying roller test benches to the Dutch police for about 20 years. Now they have developed a new roller bench on which the speed of e-bikes and speed pedelecs can also be measured, in addition to that of mopeds and scooters.

These new devices were recently put into use by the Dutch police. They are very satisfied with the operation and all police units in the Netherlands now have a Dynostar roller bench. News spreads fast as this development reached international and intercontinental interest!

The dynamometer must meet the highest requirements to ensure reliable measurements. Partnering with Zemic Europe, experts in load cell technology, allows Dynostar to integrate high-quality weighing components into their products. This partnership ensures reliability, safety and precision in their dynamometer systems. At Zemic we are happy that we can contribute to improved road safety with our load cells in the new dynamometer.

Zemic Europe & Dynostar

• Expertise in the development and production of innovative and approved power dynamometers
• Dynamometer for e-bikes that meets the highest requirements
• Expertise in weighing and force measurement solutions
• High quality custom made load cells
• Contribution to improved road safety

How Zemic Europe advised Dynostar

Dynostar and Zemic Europe work closely to address the challenges of measuring within dynamometers for modern vehicle testing. By combining their expertise, they develop solutions that provide precise speed measurements and are made to the needs of law enforcement agencies and other clients.

Dynostar explained the exact needs regarding the weighing function of the dynamometer. Zemic supplied a sensor with a specific cable length, which met the customer’s specifications.

To measure the speed accurately, someone must be sitting on the bicycle. The pressure exerted influences the speed to be measured. This can be measured very accurately with Zemic load cells.

Which Zemic load cell is most suitable?

Our S-type load cell H3 was the most suitable for this application. Dynostar preferred a shorter cable, so we developed a custom version of the H3. This load cell is integrated into Dynostar's dynamometer. The shortened cable improved the ease of installation on the Dynamometer.

This load cell has the following characteristics:

• Nickel plated alloy steel IP67 “S” type load cell
• Tension and compression applications
• Suitable for hanging, hopper and other weighing devices
• Also available in imperial capacities and dimensions
• The capacities 100kg - 2,5t have an OIML approval
• Zemic has a specially equipped sensor department, for the design, sampling and production of custom made load cells and strain gauges. Our 325 engineers are continuously working on special custom made force sensors and strain gauge solutions. We enjoy the challenge to develop the best weighing solution for each project.

You can find more information about our load cells; like the different types and characteristics, here:

More about the Dynamometer for roadside testing of e-bikes, pedelecs and mopeds

As a supplier of dynamometers to law enforcement agencies since 2005, Dynostar is committed to delivering quality products. They prioritize continuous improvement and sustainability in their designs, with a focus on eco-friendly materials and energy efficiency. Through partnerships with companies like Zemic Europe, Dynostar remains dedicated to innovation and ensuring safer roads for all.

The Dynamometer SSD-1 is specifically designed for Governments who want to perform roadside testing of e-bikes, pedelecs and mopeds. It has the following features:

• Mobile and light-weight design 
• Full color, high resolution display
• Build-in compressor with pressure sensor for checking and correcting tyre pressure automatically. 
• Synchronized drive between front- and rear wheel for accurate road simulation.
• Energy consumption is minimal; it works all day on a small battery.
• Sustainable design; at least fifty percent of the dynamometer can be recycled. 
• Advance electronics and software 
• Fully approved by NMi (Dutch notified body) and in use by the Dutch Police.

Your weighing expert is ready to help you

For all your questions about the integration of (custom-made) load cells, strain gauges, force sensors or miniature sensors, please feel free to contact one of our weighing experts:

• https://www.zemiceurope.com/en/contacts