− The paper presents a stochastic sampling method applied to a measurement of the mean value of the product of two arbitrary signals. This method is especially convenient for measuring electric power, electric energy consumption, as well as root-mean-square of voltage and/or current. The method features a very simple hardware and the possibility of selecting the measurement accuracy by choosing...

A stretchable cm electromagnetic interference (EMI) measurement sheet is developed to enable the measurement of EMI distribution on the surface of electronic devices by wrapping the devices in the sheet. The sheet consists of an 8 8 coil array, a 2 V organic CMOS row decoder and a column selector, 40% stretchable interconnects with carbon nanotubes, and 0.18 m silicon CMOS circuits for electric...

The electric field produced in the brain is the main physical agent of transcranial direct current stimulation (tDCS). Inter-subject variations in the electric fields may help to explain the variability in the effects of tDCS. Here, we use multiple-subject analysis to study the strength and variability of the group-level electric fields in the standard brain space. Personalized anatomically-acc...

In this review, the concept, design, performance, and a functional demonstration of multifunctional complementary metal-oxide-semiconductor (CMOS) image sensors dedicated to on-chip biosensing applications are described. We developed a sensor architecture that allows flexible configuration of a sensing pixel array consisting of optical and electric sensing pixels, and designed multifunctional C...

In this study, we propose a new concept for touch sensors based on the measurement of current generated by electrostatic induction. The proposed sensor can detect the timing of contact between two objects under perfect noncontact condition. When a human body comes in contact with an object, electrostatic charge is generated in the human body due to the tribological interaction. We assume that t...

This paper surveys the instrumentation, calibration procedures, measurement techniques, and standards which can be used to characterize extremely low frequency (ELF) electric and magnetic fields. While the focus of the paper is on power frequency and power frequency harmonic fields, the measurement methods discussed are appropriate in principle for other ELF frequencies.

The amplitude and the transient time constant of the acoustoelectric voltage is measured as a function of temperature to determine the activation energy of deep levels in AI,Ga, -.As/GaAs grown by molecular-beam epitaxy. In comparison to other methods based on monitoring the capacitance transient, this method has several advantages. The technique is nondestructive, and because of the dependence...

Use of electric vehicles (EVs) has been viewed by many as a way to significantly reduce US oil dependence, operate vehicles more efficiently, and reduce carbon emissions. Due to the potential benefits of EVs, the federal and local governments have allocated considerable funding and taken a number of legislative and regulatory steps to promote EV deployment and adoption. With this momentum, it i...