Portescap in Motion

Understanding Speed-Torque Characteristics of Miniature DC Motors (Part 2 of 3)

Posted by Sandeep Gandre   May 23, 2016   0 Comments

Read: Part I  |  Part III

[continued...]

Now we shall consider the motor speed against an application. We need a motor such that higher limit of its permissible speed should be higher than the operating point of the application. Maximum permissible limit corresponds to upper limit of operating range diagram. This speed limit can be found in our catalogue.

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Topics: Medical & Diagnostics, Automation, Others

Understanding Speed-Torque Characteristics of Miniature DC Motors (Part 1 of 3)

Posted by Sandeep Gandre   May 17, 2016   0 Comments

Read: Part II  |  Part III

 

Portescap offers miniature motor technologies to solve the motion needs of end markets. Our typical markets can range from motors for medical devices to various industrial applications. We serve our customers through innovative product technologies encompassing brushless miniature DC motors, brush DC & can stack motors, disc magnet motors and stepper linear actuators, to optimize their application performance.

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Topics: Medical & Diagnostics, Automation, Others

Miniature Disc Magnet Motors for Textile Applications

Posted by Norbert Veignat   Mar 14, 2016   0 Comments

 

In the 80’s, Portescap was mainly involved in the watch industry providing small stepper motors to be used in watches and clocks. Using rare earth magnets, we then designed the first micro motor with a multipolar structure. Such a design avoids additional pole shoes on the rotor to create fewer steps per revolution. Later, Portescap expanded its expertise to include bigger motors for industrial applications [< 100 W].

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Topics: Automation, Others

Miniature Motors for Biopsy Systems and Radiation Treatment

Posted by Portescap   Feb 15, 2016   0 Comments

Miniature Motors for Biopsy Systems and Radiation Treatment

Precision electric motors are spinning the way to improved developments in cancer management.

“Oncology” is the field of study and treatment of tumors. By advancing treatments in biopsy, imaging, and radiation, miniature electric motors are helping to improve the detection and treatment of cancer. As oncology techniques continue to become less invasive, more accurate and effective, the use of miniature electric motors by medical OEMs will remain a driving force in evolution of cancer management.

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Topics: Medical & Diagnostics, Others

Miniature Motors for Valve Actuation

Posted by Anant Bhalerao   Jan 27, 2016   0 Comments

An expansion valve is a flow-restricting device present in a refrigeration system that causes a pressure drop of the working fluid. The valve needle remains open during steady-state of operation. The size of the opening or the position of the needle is related to pressure and temperature of the evaporator. When set and controlled properly, an expansion valve will keep the evaporator active throughout its operation.  There are two types of electric expansion valve technologies popular in the market place - pulse width modulated valves, and stepper motor driven valves.

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Topics: Aerospace & Defense, Instrumentation, Others

Miniature Motors for Medical Devices and Dispensing Systems

Posted by Portescap   Jan 11, 2016   0 Comments

 

Health care safety is now a top priority and concern among health care practitioners and consumers. In today’s medical devices marketplace, the demand for reliable and safe medical devices and equipment comes not only from the clinical end user, but also from informed patient consumers.

For those involved in the development and manufacture of medical devices and equipment, the demand for safety and quality brings with it new and exciting challenges. How does one build equipment and devices that meet the hundreds of stringent needs of the clinical end user and health care consumer? How does one decide with whom to partner in this far-reaching world of device and equipment manufacturing?

Care givers constantly need products that assist them in achieving the best possible clinical outcomes for their patients. Where do we get motion control solutions, i.e. motors for medical OEMs capable of navigating the demands of the health care industry?

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Topics: Medical & Diagnostics, Instrumentation, Automation

Portescap Introduces New P532 Motor Series for Best-in-class Power Rate and Acceleration

Posted by Dave Beckstoffer   Dec 21, 2015   1 Comments

Portescap has recently introduced the P532 Series Disc Magnet Step Motor with encoder to deliver best-in-class motor acceleration and power rate and thus outperform the standard Brushless DC motor in a wide range of applications.

Stepper motors typically run at 2,000 RPM or less in an open loop, while brushless motors that can run at much higher speeds are typically used in closed loop applications. In the last few years, trend is to use a stepper motor in closed loop with a torque higher than a brushless motor system, because of its higher pole count. What we are typically looking at is the middle range of revolutions per minute [RPM] as a sweet spot for disc magnet motors. The sweet spot opens up in applications in the few thousand RPM range, where a closed loop disc magnet motor system can be more cost-effective than a brushless solution.

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Topics: Medical & Diagnostics, Instrumentation, Automation

Miniature Motors for Medical Ventilation

Posted by Loic Lachenal   Nov 25, 2015   0 Comments

 

The medical sector today mandates mechanical ventilation in cases where a patient's spontaneous ventilation is inadequate to maintain life. This is done to prevent an imminent collapse of other physiological functions, or ineffective gas exchange in the lungs. Mechanical ventilation therapies in hospitals and in the field have contributed to dramatic improvement in life expectancy of patients during and after surgeries, or patients suffering from accidental disruption of lungs, or even patients suffering from acute chronic pulmonary diseases. More recently, home care applications previously considered as luxury or comfort therapies are showing an interest in race to extend people’s life. For instance, low end mechanical ventilators devices known as CPAP are used at night to treat sleep apnea, a disorder once considered to be a simple discomfort and which is now recognized as a source of major medical complications such as increased blood pressure, diabetes, etc.

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Topics: Medical & Diagnostics

Stepper Linear Actuators Simplified

Posted by Portescap   Oct 27, 2015   0 Comments

What is a “linear actuator”? It is actually a simple stepper motor with a built-in leadscrew to directly convert rotary motion in form of discrete steps, into linear motion. Achieving linear motion internal to the motor eliminates the cost of designing a separate transmission mechanism in the system.

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Topics: Security & Surveillance, Medical & Diagnostics, Instrumentation, Automation, Others

Miniature Motor Driveline Solutions for Aerospace Applications

Posted by Jigar Fulia   Oct 15, 2015   0 Comments

The technology world is rapidly adapting to miniaturization, with terms like “Micro”, “Nano” and even “Pico” increasingly in vogue. This has created an immense need for anything that can provide packaged products in smallest possible sizes, and miniature motor solutions play a critical role in addressing this need. With a growing number of applications, these motors now need a wide range of capabilities, from working in a simple office to functioning in extremely hazardous environments. An application demand from Aerospace & Defense (A & D) industry falls in the latter category. Stepper motors play an important role for any A&D application need that requires some precise positioning.

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Topics: Aerospace & Defense