This experiment is developed with the aim of designing a temperature-controlled sample holder by using a commonly available power transistor as the heating element. Most temperature-controlled sample holders use commonplace heaters, which are made of high resistance materials like nichrome 80/20 (80% nickel, 20% chromium) wire and similar materials. The fabrication of this temperature-controlled sample holder also leads to the usage of high power electronic components, like power transistors and power resistors which are, otherwise, neglected in most laboratory experiments. Moreover, to develop this system, Arduino Uno Rev3 and resistance temperature detector (RTD) were used for the purposes of data acquisition and temperature measurement, respectively. Arduino is a single board micro-controller and RTD functions as a temperature sensor. This experiment serves as a good example of application and unification of basic concepts of electronics, heat and thermodynamics and offers an insight into data acquisition. The experiment is non-proprietary, and the apparatus is entirely made from off-the-shelf items. Thus, reconstruction and use will be simple and inexpensive. The power transistor, along with the power resistors, generates enough heat to raise the temperature of the sample holder by about 100 K. Also, to exhibit the working of the sample-holder, the energy band gap of the material of a p–n junction diode (silicon) has been determined experimentally using the setup.
With the upswing in healthcare industry and biomedical engineering, biomedical telemetry has enjoyed a rich diversification in research and patents. Implanted Biomedical Devices (IMD) have become immensely popular and these devices play a vital role to monitor the patient with the help of wireless telemetry. While there has been progress and various research works has been carried out in the field of wearable antenna for biomedical purposes, few are convenient and easy to build and fabricate. In our work we will try to find and explore the most convenient and simple process to build a high gain microstrip patch antenna either by using superstrate, metamaterial, FSS or by building a patch of different shape. For building a biomedical antenna, we have to take into account the size, weight, radiation, material of the antenna, and which part of the body it will be mounted on. Taking everything into consideration, our aim is to design a simple, non-complex, convenient high gain patch antenna for biomedical purposes.
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