Waterschap Scheldestromen has a measurement device named Multiflexmeter. It uses the LoRaWAN technology to send the measurement data to the gateway. But sometimes, the Multiflexmeter can not connect to the gateway to send data because the line of sight is blocked. So the company is seeking a design of …

Water Authority Zuiderzeeland measures many parameters for the WFD objectives, including electrical conductivity (EC). The EC is measured using various measuring devices, through field measurements (manual), telemetry and since 2019 with relatively inexpensive Internet of Things (IoT)sensors. It is not …

The purpose of this report is to assess the relevance of the measurement of the spectrally resolved distribution of radiation in tokamak boundary plasmas. This assessment is important and urgent in view of the recent ambition to design and construct a multi-camera configuration for hyper imaging spectroscopy1 …

This project helps to reach the end goal of doing long distance measurements. Long distance measurements depends on the refractive index of air. The refractive index depends on temperature, pressure, humidity and gas mixture. The biggest uncertainty of calculating the refractive index is the temperature, …

A new gravitation wave observatory is being built in Japan. This facility is a big Michelson interferometer where the mirrors and sensors will be made cryogenic down to 4 K. The problem is that: the heat cannot be transported out of the mirror by its surroundings because the whole system is in an ultra-high …

Single Fiber Reflectance spectroscopy (SFR) can be used to determine tissue optical properties such as scattering and absorption. The SFR technique employs a semi-empirical modal, which contains a parameter that is dependent on the fiber numerical aperture, NA . However, the NA is a wavelength dependent …