Meridian is an integrated motion controller and digital servo drive that is capable of controlling servos, linear motors, and steppers. Benefits include:
Reduce machine vibration and increase throughput with g-Stop™ anti-resonance
Use the Accelerated Prototyping System™ to diagnose machine performance, reduce development time, and get your machine to market faster
Improve stepper motor smoothness and increase power output with Meridian's vector sinewave commutation
Meridian's "sFoundation" is a source code library that provides the majority of the motion functions you'll need to get your system up and running quickly
Spring applied power-off (or fail-safe) brakes are used in applications that require the axis to stay in position, even if the machine loses power or is turned off (this is common for vertical applications or when additional safety measures are required).
Front mount compatible with any NEMA 23 or NEMA 34 motor frames
24VDC input for easy actuation
NEMA 23 pricing starting at $219 and NEMA 34 at $296
The Amazon™ Intelligent Power Center (IPC) is designed and built specifically for motion control applications.
High output capacitance and built-in regen control system prevents over-voltage shutdowns and the need for external regeneration control and load resistor
High peak power drastically reduces power supply droop during motor acceleration
Teknic continues to advance the state-of-the-art in servo motion control. As a result, new products are engineered to provide greater performance, reliability, and value. Products that are eventually displaced by the introduction of new technology are not simply discontinued—the components continue to be manufactured and supported for as long as parts are reasonably available.
When products are forced into end of life, Teknic's factory engineers work with customers who desire to extend the life of their legacy machines with newer servo components. Some of Teknic's legacy products were available for nearly 30 years before they moved to end of life status.
Teknic, Inc. > An Open-Source Ventilator Prototype for COVID-19 Patients
An Open-Source Ventilator Prototype for COVID-19 Patients
Overview
As we have all heard by now, our hospital systems are facing the burden of a global health pandemic and a shortage of critical medical supplies. Teknic was recently contacted by the Medical Devices Center at the University of Minnesota to assist with the development of their design for an automated bag valve mask (BVM) ventilator. This device would automatically actuate a BVM, which otherwise would require the full attention and labor of a nurse/tech. The goals for this device are:
Open source
Easy to build
Reliable
Cheap
Able to ramp up production quickly
Adjustable speed of ventilation
Adjustable compression
Day 1: Prototype
Day 2: First Prototype is Running
University of Minnesota (functional testing)
Updated and Revised Design, FDA EUA
Resources
Because of the generous outpouring of offers to help (both from Reddit and other online media), the University of Minnesota has setup a website to record and manage the contact information and capabilities of all of the people and organizations looking to help. If you think you or your organization can help this effort in any way—design, production, packaging, logistics, funding, FDA approval (Emergency Use Authorization), public awareness, or any other way—please visit this website https://med.umn.edu/covid19Ventilator and enter your contact information.
Applying the IMT (green trace) eliminates overshoot (pink trace) due to high integrator gain.
The Eclipse drive's torque response is extremely fast and virtually constant regardless of motor speed. The desired instantaneous torque can be delivered immediately upon demand.
Shown here, even a "high-tech" sinewave drive has difficulty producing torque as quickly as necessary for optimal performance, especially when running at speed.
This scope shot shows the commanded velocity (top: 3000RPM/div), tracking accuracy (center: 2 degrees/div) and the actual torque used (bottom: 25% of max torque/div) without the RAS engaged. Notice that the torque required during this move has significant "chatter". With 200ms of dwell between moves, reciprocating this move required 95% of the motor’s RMS capability.
The effect of the RAS on the same move’s tracking accuracy and torque usage is dramatic. Notice the freedom from "torque chatter" when the RAS is engaged—this is one reason why the RAS makes motion so quiet. Also, the RMS load on the motor was reduced by 37%!
Here’s a typical way you might use the Event Strip Charts. Let’s say you have an axis that has been working well, but suddenly develops a large tracking error. A sudden spike in tracking error can be confusing. But a glance at the Event Strip Charts shows that the spike starts shortly after the drive goes into voltage saturation. This points to a power supply problem.
Sample Torque/Speed curve generated by Teknic's proprietary simulation tools.
APS software is a convenient tool for system configuration, operation and troubleshooting.
The APS Script Development Interface provides a simple interface for programming sophisticated motion sequences.
Here’s a typical way you might use the Event Strip Charts. Let’s say you have an axis that has been working well, but suddenly develops a large tracking error. A sudden spike in tracking error can be confusing. But a glance at the Event Strip Charts shows that the spike starts shortly after the drive goes into voltage saturation. This points to a power supply problem.
The IEX-808 component provides 8-in/8-out I/O expansion for only $6 per I/O point.
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