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   4 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

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