Hall effect Lab Report Example | Topics and Well Written Essays - 1000 words

Hall effect - Lab Report Example These devices are most commonly used in industries either to calculate the revolutions of a wheel or to evaluate the respective timing of the revolutions. On the other hand, displacement is also encountered with these types of sensors due to their high credibility. The construction of the sensor may differ depending on the applications these devices are used in (New robust hall effect rotary sensor, 2006). When the magnetic field of lines deflects the straight beam of highly charged particles, the bean is deflected due to the magnetic field. In this manner the straight path of the charged particles does not remain straight. In general, a Hall plate has a fixed flow of electrons from the plate in the form of electron beam. However, in the respective magnetic field the beamsn gets deflected due to the magnetic flux and less current flows through the plate. The voltages appear over the positive and negative terminals of the plate are Hall voltages (Zheng and Zhang, 2014). 1. Make the Hall Effect Sensor board by fixing the Hall Effect sensor to the board. After fixing the Hall Effect sensor, mark the board with scaled numeric values with the help of marker and scale. The marking should be as 0 mm at null position, (where the head of the Hall Effect sensor is there) and with the intervals of 20 mm. The highest marked number should be 160mm. Carefully select the scale and mark appropriately and clearly. 3. Connect the probe of the Hall Effect Sensor to the Signal processing unit. Connect the probes of the Digital DC voltmeter to the output measurement of signal processing unit. Use 0 to 1 volt setting at the Signal Processing unit to calculate output. Use the 100mT setting. Turn the zero dial all the way to the left before you begin. In the experiment, it is quite clear that as the magnetic field goes away from the Hall Effect Sensor, the voltage signal gains strength. However, a little difference is evaluated as the magnetic field crosses 160mm on

MIDDLE RANGE NURSING THEORY Research Paper Example | Topics and Well Written Essays - 1250 words

MIDDLE RANGE NURSING THEORY - Research Paper Example In the same way, it is necessary for nurses to understand the different concepts of nursing strategies and various psychological and philosophical aspects of quality nursing care. Theoretical frameworks including middle range theories clearly define the nursing standards for the modern world. This paper will provide an overview of the concept and evolution of Middle Range Theories of Nursing and their applicability in today’s healthcare scenario. Concepts: Origin and Development Middle range theories are precise and moderate, and possess limited number of variables; hence, they effectively define nursing care standards. To be specific, middle range theories can be effectively applied in the field of nursing research and practice as their practicality can be directly tested. To define, â€Å"mid-range theories stand midway between the all encompassing global grand theories that address the entire discipline and hypotheses and theories that are very specific to a particular phe nomenon or population† (Lenz, 2006, n.p). As compared to grand theories, Middle range theories are more concrete and narrow. To illustrate, they are written relatively at specific level with limited number of propositions and ideas. Theory of Human Caring (Watson), Theory of Interpersonal Relations (Peplau), and Theory of the Deliberative Nursing Process (Orlando) are some of the well known middle range nursing theories. With regard to the progress of middle range theories, they are based on the results derived from practice and research that can provide clear direction for casual practice and intellectual practice in the discipline further. The past century witnessed a notable level of progress in the middle range theories. Except a few, most of the middle-range theories have come directly from clinicians’ experience. The middle-range theory helps to mark certain condition of the related signs and future approach for symptom management in caring patients. The theory al so emphasis on the result of various expressions or conditions with regard to the patient’s performance, and encourages the clear evaluation of patient’s working outcomes. Lieher and Smith (1999), has listed â€Å"the relationship between the intellectual process and the source of content related to the development of middle-range theories†; they include â€Å"Inductive theory-building theory through practice, Deductive theory. Building from grand nursing theories, Combining existing nursing and non-nursing theories, and Developing theories from clinical practice guidelines â€Å" (Source: Approaches for generating middle range theory. Para. 1. As cited Peterson & Bredow, 2009, in p. 31). Middle range theories are of mainly three types; Middle-range descriptive theories, Middle-range predictive theories, and Middle-range explanatory theories. These variations could be analyzed on the basis of their characteristics and with most relevant examples. Among these, Middle-range descriptive theories usually encompass only a single main concept to classify a phenomenon. While doing so, it simply lists the generalities observed in individuals and groups, and these theories are normally tested by means of descriptive research. The interpersonal Relations (Peplau, 1952) is an example of a middle-range descriptive theory. Peplau’s theory focused on the therapeutic relationship between the nurse and the patient, which is termed as the Nurse-Client Relationship. In contrast, Middle-range expl