Ward M.C.L. – TechConnect Briefs

Design of a Wireless Passive Microsensor for Injection into the Human Brain

Spratley J.P.F., Hall P.S., Ward M.C.L., University of Birmingham, UK

The design of a sensor for injection into the human brain to aid sufferers of spinal injuries and neurological dissorders is outlined. It is powered and communicates by induction from an external coil, and incorporates [...]

Electromechanical Model for a Single Port Nano-Mechancial Beam Resonator

Kemp T., Docker P.T., Ward M.C.L., Jones I.P., The University of Birmingham, UK

A simple electromechanical model for a nano-mechanical, magneto-motively driven beam resonator is derived. The model is developed in order to determine the dynamic electrical properties of the resonator. This enables the pickoff and drive electronics [...]

The Optimisation of a Resonant Gas Sensor by Using Nano-Tectured Surfaces

Docker P.T., Kinnell P.K., Ward M.C.L., University of Birmingham, UK

This paper describes the potential for optimising a resonant gas sensor by using nano-textured surfaces. Initial modelling proved that a device with a nano-textured active layer could have its surface area increased by an order [...]

NEMS Mass Sensor by Focused Ion Beam Fabrication

Boonliang B., Prewett P.D., Ward M.C.L., Docker P.T., Birmingham University, UK

Due to rising industrial demands (food, biology, control), there is a drive to develop smaller, more sensitive sensor-devices with real-time capability. The objective of this work is to utilise Focused Ion Beam (FIB) fabrication technology [...]

A Novel Microrheometer for Measuring Rheological Properties of Microquantities of Fluids

Lo C.S., Prewett P.D., Ward M.C.L., Docker P.T., University of Birmingham, UK

This paper describes a novel micromachined microrheometer, designed to measure the rheological properties of micro quantities of fluids. Measurements are achieved by monitoring the movement of superparamagnetic microbeads whilst in suspension in fluid when placed [...]

The Manufacture and Preliminary Testing of a Novel Bio-MEMS Filtration Chip

Docker P.T., Prince M., Kinnell P.K., Ward M.C.L., Ma X., Birmingham University, UK

In the clinical/microbiological laboratory there are currently several ways of separating specific cells from a fluid suspension. Conventionally cells can be separated based on size, density, electrical charge, light-scattering properties, and antigenic surface properties. Separating [...]

Development of a Resonant Magnetometer

Izham Z., Ward M.C.L., Brunson K.M., Stevens P.C., Microsystems Mechanical Engineering, UK

A new design and analysis of a resonant magnetometer is presented. Preliminary analysis shows a sensitivity of 3.9mV/microT. BESOI manufacturing techniques promises easy incorporation to present gyroscope and accelerometer designs promising a complete navigational control [...]