SensorsThis letter reports on the development of a low-cost intensity variation-based pressure sensor using polymer optical fibers (POFs) with high flexibility fabricated through the light polymerization spinnin
Although bioreceptors are very powerful recognition elements due to the high affinity they inherently display for their target, their limited stability and relatively high-cost synthesis procedure have resulted in an increased research focus on the development of synthetic alternatives. A kin to enzymes...
Integrating these materials of unique EM properties in the microwave/RF circuits helps realizing compact miniaturized systems of low cost, higher efficiency and sensitivity for non-invasive BGL monitoring. In particular, microwave sensors would significantly improve their sensitivity for characterizing the ...
Here, we report on a visual, high-contrast and low-cost optical hydrogen sensor comprising a thin Pd film on an elastic polydimethylsiloxane (PDMS) substrate, which is called a Pd-capped elastomer (PCE). The optical response of the PCEs to hydrogen gas is monitored by recording the reflecti...
A fiber Bragg grating (FBG) pressure sensor with high sensitivity and resolution has been designed and demonstrated. The sensor is configured by firmly fix
To reduce costs, the researchers used low-cost sensors from Raspberry Pi cameras that were modified to enhance UV sensitivity. The team then constructed a UV-transmissive optical system and mounted it to the sensor. The instrument ultimately uses a sensor that is similar to smartphone camera ...
In this paper we demonstrate the design of a low-cost optical current sensor. The sensor principle is the Faraday rotation of a light beam through a magneto-optical material, SF2, when a magnetic field is present. The prototype has a high sensitivity and a high linearity for currents ranging...
When carefully designed, analog systems are hard to beat for simplicity, low cost, and low power consumption. This architecture performs most of the signal processing in the analog domain. Sensor Excitation Sensors, which are ubiquitous, are used to measure temperature, light, sound, and a ...
MEMS based sensors discussed earlier are fabricated using a customized microfabrication process which requires high fabrication cost and long device development cycle [33]. One of the requirements of tactile sensor for robotic surgery is disposability of the sensor, because tactile sensor cannot be ...
We propose an ultra-low-cost at-home blood pressure monitor that leverages a plastic clip with a spring-loaded mechanism to enable a smartphone with a flash LED and camera to measure blood pressure. Our system, called BPClip, is based on the scientific premise of measuring oscillometry at the...