About Theresa Shafer

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So far Theresa Shafer has created 244 blog entries.

Finding some “sense” in 2018

In 2018, sensors will continue to be a driving force for innovation. Low-cost sensors are revolutionizing medical, home health and wearable devices, as well as other Internet of things gadgets. These smart devices benefit from the ongoing development and fusion of low-cost, high-volume sensors.  Whether it is temperature, pressure, vibration, acceleration, flow, sound or vision, [...]

January 6th, 2018|Categories: Sensors, V2018|

Production Hell: Unpredictable Field Failures Solved by Voler

There’s nothing worse than production stopping for design issues. A recent client asked us to help solve an intermittent design problem causing unpredictable field failures and costly product returns in a product designed by another firm. We quickly determined the root of the problem and provided a way for the device to power down fully [...]

January 4th, 2018|Categories: News, V2018|

Wake-Up Circuits

Accelerometers are widely used in electronic products such as phones, gaming controllers and cars. Since they are cheap and ultra-low power, in many products they are part of the wake-up circuit. When they sense movement, they turn on the rest of the systems. However, if they are deployed incorrectly, they will cause intermittent problems with [...]

December 5th, 2017|Categories: Motion Control, News, Sensors, V2017|

Volume 2017, Issue 4 Newsletter

In This Issue: User Interface for Chemical Analysis Voler Systems developed an instrument that measures turbidity (cloudiness) of water for industrial water processing. It uses the refractive index of the fluid to measure the volume of minute particles in the water. The user interface provided control for operational, diagnostic, and calibration functions. We provided a [...]

November 2nd, 2017|Categories: News, Newsletters, V2017|

Advice for new engineering managers

If you recently stepped into the role from a developer position, here is some of our most popular resources that others have found helpful. Are you a boss or a leader? Team building: forming - storming - norming - performing The engineering manager’s journey for engineering excellence 10 questions to ask your electrical design engineer

November 2nd, 2017|Categories: Management, V2017|

Inexpensive Low Data Rate Links for the Internet of Things

by Larry Burgess In the last few years, the smaller size and lower cost of radios has created opportunities for passing more and more information from place to place faster and cheaper.  Low data rate scenarios like soil monitoring and crop quality on farms, detection and instant notification of leaks on pipelines, availability of parking [...]

November 2nd, 2017|Categories: IoT, Ultra Low Power, V2017, Wearable Devices, Wireless|

Overview of Wearable Device Sensors Slides 2017

Wearable fitness devices are influencing today’s medical devices that target clinical and everyday applications. Some of the innovation involves new modalities of measurement: for example an iPhone that analyzes your eyeball to determine blood pressure. But fundamentally the challenge has shifted from determining how to make accurate and precise measurements to how to enable a compact [...]

October 30th, 2017|Categories: News, Sensors, V2017, Wearable Devices|

2017 Mentor at Stanford’s Health++

We are excited to be mentor at Stanford University's Health Hackathan. We will assess their technical feasibility and help provide guidance on product development.    

October 23rd, 2017|Categories: Medical Devices, News, V2017|

User Interface for Chemical Analysis

Voler Systems developed an instrument that measures turbidity (cloudiness) of water for industrial water processing.  It uses the refractive index of the fluid to measure the volume of minute particles in the water.  The user interface provided control for operational, diagnostic, and calibration functions. We provided a clear and intuitive user interface for the instrument [...]

October 16th, 2017|Categories: Embedded Systems, Medical Devices, Recent Projects, Software and Firmware, V2017|

Star and Mesh Networks

The most common configurations for connecting multiple devices are the star and mesh networks. Star Network In its simplest form, a star network consists of one central hub which acts as a conduit to transmit messages. In a star topology, every device is connected to a central hub. Advantages If one node or its connection [...]

October 13th, 2017|Categories: Wireless|