Developed example applications to demonstrate course topics. Mobile devices interfaced with Bluetooth Low Energy BLE environmental sensor platforms.

Evaluated wireless sensors for wearable applications according to ease-of-use, cost, reliability and physical size.

CAD design of 3D-printed enclosures.

Supervised 80 students enrolled in the third-year Team Design Project course, acting as a scrum master for small teams learning the agile process.

• More info: Concordia University - Department of Electrical and Computer Engineering

Design and testing of all system wiring and electrical power and control cabinets including:

Protection of three-phase loads. Automation with Actuator Sensor Interface (AS-i) fieldbus protocol and PLC.

Configuration of variable frequency drives (VFD), temperature controllers, pressure and flow sensors.

Troubleshooting of 24 V dc industrial sensors and analog 4-20 mA loops.

• More info: Terragon Environmental Technologies

Sorting system for four types of object: white or black plastic, aluminum or steel.

As it moves down the conveyor, a part is detected in front of a reflective photo-sensor by a separate photo-transistor. The relative surface reflectivity of the part is measured and used to classify it. A container rotated by stepper motor is positioned to catch the object as it leaves the conveyor.

Implemented interrupts handling ADC results and inputs from optical and Hall Effect sensors.

Linked queue stores known objects: enqueue when part is classified and dequeue as part leaves the belt. LEDs display a count of measured and sorted parts.

Surmounted physical constraints of hardware: Increased speed of parts bin rotation (system bottleneck) by dynamically adjusting delay between motor coil energizations.

Solved switch bouncing in software by sampling a bit stream to detect transition edge.

• More info: C Code on GitHub

To facilitate design of implantable sensors for electromyography (EMG). Targeted sensors could provide better inputs for prosthetic device control.

Modelling magnetic properties of solenoid coils to quickly determine lumped circuit equivalents for use in wireless inductive power design.

Use of finite element software to obtain rapid results for combinations of many variables including relative coil orientations and presence of magnetic core materials.

• More info: Thesis at University of Victoria Library DSpace Repository

Revised analog circuits, PCB layouts, schematic and assembly drawings for Active Shaft Grounding systems for international naval customers.

Managed contracts adhering to military MIL-STD and IEC standards.

Created test procedures, supervised production tests and first article qualification testing.

• More info: Davis-Eng.com