The Horiba iHR550 is a spectrometer capable of being used as both a monochromator and a spectrograph, i.e. it can be used both for selecting wavelength bands (narrow) or taking an overall spectrum measurement. Its design is of the Czerny-Turner type, which consists of a collimating mirror in front of the entrance slit that collimates […]
With the passage of time the need of being independent from the outside market has significantly increased and physics lab is approaching this goal by developing specific expertise and manufacturing skills in the lab. Moreover, making complex circuit on Vero board was time consuming and prone to error. Previously PCB manufacturing was done from Hall […]
Dielectric Measurements are a basic means of evaluating electronic components and materials. Every material has a unique set of electrical characteristics that are dependent on its dielectric or insulation properties. Accurate measurements of these properties can provide valuable information to ensure an intended application. The dielectric cell is successfully designed and constructed for measuring frequency […]
The Physlab has recently acquired a CNC machine (CNC Lathe Smart 32-T8, manufactured in Taiwan). This will boost the manufacturing capabilities of the Laboratory, making possible the fabrication of high precision components and equipment for scientific research. This is the latest addition to the Physics Lab Workshop. The machine is equipped with Fanuc control.
The Physlab has assembled a low cost energy dispersive X-ray fluorescence (XRF) system to carry out the elemental analysis of different materials. The assembly to place the samples is constructed in the physlab workshop and analysis of different materials is carried out using this XRF system. The XRF system will ease the analysis of materials […]
With the help of the four probe technique, it is possible to eliminate voltage drops in measurement leads allowing accurate determination of low and medium range resistivities. At the physlab, we have developed sample holders with four needles in the collinear and van der Pauw configurations, for the measurement of electrical resistivities. Equipped with a […]
The Physlab is equipped with a low-temperature, closed cycled helium cryostat, compressor, vacuum unit and water chiller / re-circulator. The cryostat is fitted with quartz optical windows, a Cernox temperature sensor and a 25 W heater. The cryostat can achieve temperatures in the vicinity of 7 K when subject to a vacuum of 1 mtorr. […]
The 5-1/2 digit Model 6485 Picoammeter combines Keithley’s expertise in sensitive current measurement instrumentation with enhanced speed and a robust design. With eight current measurement ranges and high speed autoranging, this cost-effective instrument can measure currents from 20fA to 20mA, taking measurements at speeds up to 1000 readings per second.