A highly sensitive humidity sensor with low-temperature sensitivity is proposed and
demonstrated using a polyvinyl alcohol (PVA) coating tapered fiber. The taper fiber is highly …

A wireless, passive embedded sensor was applied for real-time monitoring of water content
in civil engineering materials such as sands, subgrade soils, and concrete materials. The …

Colorimetric measurement is a versatile, low-cost method for bio-/chemical sensing and that
has importance in biomedical applications. General carbon dioxide (CO 2) sensors based …

Real-time monitoring of breath can provide clinically relevant information about apnea
syndrome and other important aspects of human physiology. Here, we introduce a flexible …

In this paper we present the design and fabrication of a humidity sensor on ultra thin (8μm)
flexible polyimide substrate. The ultra thin flexible substrate can be preserved also when a …

The incidence of several respiratory viral infections has been shown to be related to climate.
Because humans spend most of their time indoors, measures of indoor climate, rather than …

Various conjugated polymer materials have been successfully applied in humidity sensors,
but their response/recovery time are not satisfactory for breath humidity monitoring. In this …

This paper proposes and analyses a direct interface circuit for capacitive humidity sensors.
Such a circuit relies on directly connecting the sensor to a microcontroller without using …

The development of simple gas sensing concepts is still of great interest for science and
technology. The demands on an ideal device would be a single-step fabrication method …

Measuring or monitoring air humidity is an increasing demands in the various fields. In this
work, a simple and convenient method was utilized to prepare a melamine aerogel (MA) …