Archive | February 2018

More rovers on Mars

In 2020 the European Space Agency (ESA) and NASA will send their rovers to Mars. Here’s a comparison of the two machines.

Both rovers are being deployed to Mars in June/July 2020 to looks for signs of life and take soil samples.

Maxon DC motors feature in both the rovers and here we take a look at the difference between the two rovers.

NASA Mars 2020

Mission start: June/July 2020 aboard Rocket Atlas V-541.

There are nine maxon DC brushless motor and drive systems that help collect the soil samples. The EC 32 flat and EC 20 flat motors fitted with planetary gearhead and customised in commission with NASA/ JPL.

ESA ExoMars

Mission start: June/July 2020 aboard Rocket Proton.

More than 50 actuators from maxon assist with the wheel drive, sample distribution and camera movements. There are 17 different configurations of brushed and brushless DC motors including the DCX 10, DCX 22 and EC 40 combined with gearheads, brakes and encoders.

For more information on maxon’s Aerospace capabilities please contact +61 2 9457 7477.

 

Advertisements

Autonomous delivery vehicles …..coming soon!

Swiss start-up company TeleRetail is testing a prototype delivery robot that delivers groceries/ small packages autonomously.

Called “mobile trunks” these autonomous delivery robots are small containers on wheels equipped with sensors, intelligent software and powerful maxon DC motors. Made and designed to travel autonomously, reliably and without obstructing or endangering anyone, these small robots reduce congestion on the roads and are more economic to run than an electric car.

Maxon brushless DC motors, the EC 90 flat, features in the mobile trunks. Developed in conjunction with maxon engineers since 2016 the vehicle is still in it’s infancy. Before these delivery robots can be produced en-masse, laws need to change. Currently these types of delivery robots can only move around with the use of special permits away from the large bustling cities.

For assistance with your application please contact maxon motor tel. +61 2 9457 7477.

New power levels for brushless DC motor and gearhead combination with stable speed

This new combination of motor and gearhead can produce stable speeds over 120rpm with 10Nm applied.

With a very flat speed torque ratio the 40mm 170W brushless DC motor from maxon motor is suitable where minimal speed reduction is required under load. Particularly apt for process machinery or food production equipment where 24/7 continuous use regulated speed control is necessary. The pictured unit features a 2000qc incremental encoder and a 66:1 planetary gearhead. The output shaft is sealed and the unit can operate in small enclosures via conduction cooling. Brushless operation and ceramic components also give durability and robustness to the combination resulting in increased lifespan.

For more information please contact maxon motor Australia tel. +61 2 9457 7477.

Brushless DC motor with temperature sensors

When prototyping with Brushless DC motors information is key to product success.

Pictured here is a highly customised brushless DC motor developed for special aerospace applications. The 200W nominal 30mm diameter has had a special winding wound to suit the unique requirements of the application where the motor needs characteristics for driving and generation. It is a 4 pole topography with a sealed stainless steel body and welded flanges. The application for this brushless DC motor requires operation for very short bursts of power at over 500W. To facilitate testing that gives design engineers absolute confidence the winding will never exceed its thermal limits a platinum thin film temperature sensor has been fitted in contact with each phase. This allows the R&D staff to slowly increase the duty cycle whilst monitoring temperature and develop controller functionalities around the thermal limits. In addition the motor has been assembled with a planetary gearhead that is quite special in itself. The gearhead ratio has been slightly adjusted to allow for smaller planetary gear diameters. The smaller diameters allow for an additional set of gears on the output stage increasing the torque capabilities. A special 2RS rubber sealed bearing has been incorporated along with a customer specified axial threaded bore in the middle of the shaft. At the rear of the motor is a 4,096 quad count encoder facilitating the smooth zero cogging motion control.

Contact maxon motor Australia for a tailor made system solution Ph: +61 2 9457 7477.

Saving the lives of preemie babies.

Paul is a robotically simulated training model of a 27 week old preemie baby. Created by an Austrian paediatrician to help train medical practitioners, maxon motors replicate the breathing movements of the baby.

Meet Paul. The smallest and most advanced high-end patient simulator in the world. Paul is a 27 week old preemie. He is 35cm long and weighs 1kg. He breathes on his own with a consistent heartbeat. His chest gently moves up and down, veins and arteries are visible under his thin skin. Paul needs artificial respiration and will sometimes turn blue.

Born to train medical staff in emergency situations that occur every day in neonatal intensive care units, the creator of Paul is Jens-Christian Schwindt, an ex-paediatrician in the Division of Neonatology of the Vienna General Hospital. In 2015 Schwindt started his company SIMCharacters, that arose from a need where “Critical situations in preterm care have to be trained time and time again, under as realistic conditions as possible, to ensure that everything goes equally smoothly in a real crisis” says Schwindt. With the ability to evoke emotions and cry, the baby looks exceptionally lifelike and is full of high-technology on the inside. His skull hosts a Linux system, he is charged cordlessly by induction using a customary charging pad. Paul can be operated for up to two hours. When he has difficulty breathing or the oxygen saturation drops, his head turns blue. Sophisticated hardware and software fit into a silicone skin.

maxon DC motors, gearheads and sensors ensure that the thorax and abdomen move in accordance with the programmed test scenarios. Three DCX 12mm motors with gearhead and sensors are used – two for Paul’s thorax and one for the abdomen. Another maxon DCX 6mm motor moves a valve in the lung of the simulator, with a total of 40 motors installed. The motors were selected for their torque, density and quiet running. The robust design and the ironless maxon rotor make these motors a perfect fit for this unique application. Maxon’s DCX motors are brushed and available in sizes from Ø 6 – 35 mm. They can be easily configured online and customer can select from graphite and precious metal brushes, sintered and ball bearings, and many other components.

For more information please contact maxon motor Australia tel. +61 2 9457 7477.

New and improved high-resolution encoder from maxon.

Compact and housed in robust casing is the improved ENX 16 Encoder that withstands temperatures from -40 °C to +100 °C.

For exceptional accuracy and position control, maxon’s ENX 16 encoder offers resolution up to 65,536 CPT. It is small, packed in a diminutive 16mm outer diameter size and only 7mm in overall length. The housing is mechanically robust and protected from dust due to its injection-moulded construction. Ideal for accurate positioning and speed control of DC motors, it fits the new brushless EC-i 30 motors and 16mm + dia. brushed DCX motors. maxon’s ENX 16 encoder has several aspects that can be configured online or at the factory, including the resolution, counts per turn, the electrical interface, as well as combined and configured with matching DC motors and drive systems online.

For more information please contact maxon motor Australia tel. +61 2 9457 7477.

%d bloggers like this: