Sensing and Instrumentation Case Study
Properties, Processing and Applications of Capacitance Sensors:
A Case Study of Capacitance Micrometry
Stephen Grant – 01267044
2014
Abstract
This is a case study that looks in detail at the properties, process and application of capacitance micrometers. The fundamentals and designs of capacitance micrometers are analyzed in detail in order to assess their viable use within industry. Suitable comparisons with alternatives to capacitance micrometry measuring techniques are made while looking at the benefits and drawbacks of each with respect to different applications. This case study proves that capacitance sensing is an robust technology to use due both its variety of uses that can be used in a wide range of extreme industrial environments and applications.
Introduction
Many applications within industry require accurate detection and measurement of sub micron/nanometer displacements. For example, in order for accurate control systems to be implemented, it is therefor vital that an accurate sensor be used within that control system. Throughout the years, many different sensors have been developed and used in order to detect movement within many different engineering applications. Alternate sensing technologies to Capacitance Micrometry bring with them some design and cost issues with them; for example issues including size, cost and accuracy. Sensors that make use of Capacitance measurement and detection are
Purpose: To learn about the international system of units (SI), to become familiar with common lab equipment and techniques, to gain proficiency in determining volume, mass, length, and temperature of a variety of items using common laboratory measurement devices, to learn to combine units to determine density and concentration, and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution.
The United States has to reconfigure the measurement of goods due to not using the metric system.
1. Describe the types of instrument(s) you plan to use for your study (e.g., interview protocol, attitudinal survey, achievement test, observation scale, questionnaire, focus group protocol, etc.).
Namely, determining cable types and connectors, designing connection boxes and measuring required wire lengths are some of the major milestones completed during this phase. Determining the best cable type for the application is crucial for the accuracy of the measurement system. Several tests performed at NIST confirms that widely used Teflon cables, retains charge in the Tera-Ohm range resistance measurements. Therefore, for the measurement system developed, polyethylene cables were chosen to connect resistors and equipment. Furthermore, BPO (British Post Office) coaxial cable connectors were chosen as the connection method. Precision of cables and connectors are crucial for the measurement system developed. Therefore, additional testing were done to ensure the accuracy of the cables. Furthermore, the connectors were cleaned using an Ultra Sonic cleaner to remove oil and dirt that could affect the insulation. After cleaning the connectors, insulation between the terminals of the connectors was checked using the Tera-Ohm meter system at
Structure analysis is very important in design of MEMS devices in order to optimize the device performance. In the following step of this paper an analysis of a doubled ended tuning fork in the presence of an axial forced is performed. Then scale factor for this sensor is derived from relationship between natural frequency of the resonator and the applied
For many years, hospital personnel have struggled with maintaining the accuracy of fluid intake/output measurements of patients. Your decision to focus a change project aimed at addressing this issue and making changes to correct the problem is important to maintain the safety of patients during hospitalization.
Change the location of the positive charge to at least six widely different distances from the equipotential sensor. Record the voltage reading and distance at each location.
The profusa biosensor is able to monitor multiple diseases/conditions from tracking chemicals in the body. These include diabetes, Peripheral arterial disease, heart attacks and heart failures. The occurrence of these diseases/conditions, can change the oxygen, glucose levels or blood pressure in the body. The biosensor could potentially result in faster treatment for paramedics when in contact of an unconscious person. The paramedics would be able to look at the patient's’ biomarkers stream and will help them to treat the patient faster, potentially saving their life. In hospitals, it could help aid doctors to better monitor a patient’s health. The profusa biosensor allows the doctor to keep track of the patients’ health even when sent home.
The following expanded annotated bibliography will be look at the topic of electronic monitoring, it will be providing the reader with sufficient information how it could potentially be better for our society, it will also be providing studies and researches conducted on electronic monitoring
Instrumentation is defined as the art and science of measurement and control which is considered as working with instruments used to measure, record, and control process variables (for examples, fluid level and flow, temperature, and pressure). Control and measurement systems are very widely used in the petroleum product (oil and gas) industries, chemical and fertilizer industry, the pulp and paper industry, power generation, food processing and several other complex process. Control systems have attained significant applications in automotive industrial processes for the improved productivity, conserved entry, and reduced pollution. Instrumentation and control systems continue to be an extremely important field of technology with the rapid growth of industrial sector.
Using technology to measure patients overall health is not always an easy concept as the information is not always a finite number. Measurements are broken down into two different categories, direct measurements involving concrete values and indirect measurements that are abstract concepts (Grove, Gray, & Burns, 2015). Direct measurements include, BP, heart rate, respirations, temperature, height and weight. Conversely, indirect measurements are more complex and may need more than one way to measure this concept, for example, pain. Pain is an abstract measurement that Grove, Grey, and Burns (2016) describe well in their graph exploring the concept of pain. In this graph, each circle represents an area of pain to be measured; FACES pain
\paragraph{\textbf{Instrument-based Analysis}} Instrument-based methods measure the body movements using specific instruments (e.g., accelerometers and motion sensors) attached to the infant’s skin.
The risk of measurement influenced by the digital phones and static magnets should be minimum.
Aperture is a hole within a lens, where light travels into its body. Depth of Field is the area of the image that looks clear. The aperture impacts the depth of field directly, the larger the aperture and vice versa, the larger the depth of field. For the picture above, as the aperture gets smaller, the depth of field gets smaller, thus smaller amounts of the picture appears clearer. As for the picture below, as the aperture gets bigger, lesser amounts of light is exposed to the camera, thus the picture gets darker.
The sounding survey was performed using a Schlumberger array. Two measuring tapes were rolled out in opposite directions from a fixed centre point, to ensure accurate measurements of both the voltage and current electrode spacing’s.