Capacitance detection is a universal transduction mechanism used in a wide variety of
sensors and applications. It requires an electronic front-end converting the capacitance …

A sensor interface device is essential for sensor data collection of industrial wireless sensor
networks (WSN) in IoT environments. However, the current connect number, sampling rate …

Healthcare in general refers to services provided for preservation or enhancement of health
through anticipation, finding, treatment, recovery, or healing of disease, illness, injury, or any …

With the development of science and technology, gas sensors have gradually expanded to
many vertical fields. However, each application requires different technical requirements for …

A scalable time-based analog front end in 40-nm CMOS is presented for ECG readout for
ambulatory applications. The main challenge addressed is achieving a large dynamic range …

In this paper, a new, simple and accurate impedance measurement technique (IMT) for wide
range lossy capacitive sensor is proposed. The proposed technique accepts sensors having …

We report the design of a two-degree-of-freedom microelectromechanical systems
nanopositioner for on-chip atomic force microscopy (AFM). The device is fabricated using a …

A compact, low power interface for capacitive sensors, is described. The output signal is a
pulse width modulated (PWM) signal, where the pulse duration is linearly proportional to the …

This paper presents E-Nose, a novel cost-effective, field-deployable portable system that
constitutes a 4-channel signal conditioning circuit and multi-coated piezo-resistive micro …

A novel fully-analog lock-in amplifier for the accurate measurements of low quantities of gas
in sensor applications is here presented. When compared with commercial lock-in and other …