This paper describes our views on how to detect faults in low testability analog or mixed mode (analog electro-mechanical) system. A new method is developed to identify a minimum number of faulty parameters in the system with ambiguities. From sensitivity analysis of the system, we can extract solution invariant matrix and identify singular cofactors of this matrix. The approach can be extended...

Phase-sensitive demodulation PSD is important for signal conditioning and communication. This paper introduces an approach to teaching PSD for signal conditioning to undergraduate science and engineering students. The goal is to help students understand the principles of PSD for signal conditioning because they can see waveforms at various test points and the effect of the phase angle on the ou...

This paper presents a hardware and software system for adding multiple touch sensitivity to the piano-style keyboard. The traditional keyboard is a discrete interface, defining notes by onset and release. By contrast, our system allows continuous gestural control over multiple dimensions of each note by sensing the position and contact area of up to three touches per key. Each key consists of a...

The field of electronic textiles (etextiles) possesses a variety of applications; one inexpensive and practical application lies in creating unobtrusive pressure sensors. The e-textile pressure sensor is created with a circuit of conductive thread, the voltage and resistance of which is inversely proportional to the pressure applied on the sensor. E-textiles may be used both for recreation and ...

Recent advances in electronic circuit miniaturization and micro-electromechanical systems (MEMS) have led to the creation of small sensor nodes which integrate several kinds of sensors, a central processing unit (CPU), memory and a wireless transceiver. A collection of these sensor nodes forms a sensor network which is easily deployable to provide a high degree of visibility into real-world phy...

One way to understand a neurobiological system is by building a simulacrum that replicates its behavior in real time using similar constraints. Analog very large-scale integrated (VLSI) electronic circuit technology provides such an enabling technology. We here describe a neuromorphic system that is part of a long-term effort to understand the primate oculomotor system. It requires both fast se...

The global increase in energy demand and exponential exhaustion of fossil recourses has favored the development of new systems of electricity production. Photovoltaic solar energy is undoubtedly one that has the highest application in housings, due to its simplicity and easy implementation. In this work, a new prototype of photovoltaic solar tracker with Arduino platform was developed. Feedback...

Vibration sensors are needed in a variety of applications, such as geophysical sensing, machinery vibration and failure prediction, tracking of vehicles, underwater pressure gradient detection, microphones, and in robotic applications. Low noise electronics is critical for creating a highsensitivity vibration sensor, especially in low proof mass MEMS designs. We have designed, fabricated, and t...

Temperature-tracking is becoming of paramount importance in modern electronic design automation tools. In this paper, we present a deterministic thermal placement algorithm for standard cell based layout which can lead to a smooth temperature distribution over the die. It is mainly based on Fiduccia-Mattheyses partition scheme and a former substrate thermal model that can convert the known temp...

Recently, in the development for piezoelectric and ferroelectric devices, the characterization method for nano-scale structure such as a ferroelectric domain and ferroelectric domain boundary (FeDB) has been important. The ultrasonic atomic force microscopy (UAFM) is expected to have the potential of elasticity characterization on the ferroelectric domain with nano-scale spatial resolution. In ...