June 15, 1997
June 15, 1997
June 18, 1997
2.240.1 - 2.240.5
Instrumentation of ASTM Tools
Eric Tisdale Ball State University
Abstract This paper will focus on a laboratory experience using a chip level pressure sensor that will be presented as both a force gauge and a level meter. The goal is to present sensors to the students with enough information to allow them to see how sensors can be adapted to collect different data parameters
Background Laboratory experiments often seem disconnected from the “real world”. Examples of instrumentation used in commercial enterprise are used to stimulate conversation and confidence that the material presented is current. Programmable controllers, CNC simulators, computer interface boards, relays, operational amplifiers, and chip level sensors are components that are used in laboratory experiments to show students both how the systems may be interfaced and to allow them to create the interface. Sensors cover a broad range of measurement needs and can be used for many types of data collection. They are application specific so must be used in multiple experiences to show diversity and how the same device can be structured to take different measurements.
This laboratory experiment will use the Motorola MPX5010D pressure sensor to measure water level. The class project will include building a PID controller to regulate the level of a water tank. The 5010 will be the level measurement device. Preparation for this experiment requires that sensors be discussed and during that discussion the 5010 will be presented as it was used in a medical research application. During the case history discussion the student is to consider how to collect the desired information. History of the project will assist the student in understanding how the final device was conceived. A discussion of the problems that were solved and those that were not are given to broaden the scope of the sensor experience.
The Application and Case History A technique called ASTM (Augmented Soft Tissue Mobilization) has been developed and is under study at Ball Memorial Hospital(1). It has been known that mobilization (rubbing tissue in the direction of the muscle or across the muscle) of soft tissue can stimulate the body’s normal healing response(2). Such problems as chronic tendinitis, carpal tunnel syndrome, and adhesions within the soft tissue can be broken down and restored to full function. The populace has always known that if it hurts, you rub it. Massage therapists have use these techniques for years to make their patients feel better. Physical therapists attempt to assist the body in the healing process. Sometimes the body is so damaged that there is nothing that can be done to assist the patient while still outside the skin. In these cases, surgery may be indicated. The purpose of the ASTM technique is to reduce the requirement for surgery and to return patents to the work force(3).
Tisdale, E. W. (1997, June), Instrumentation Of Astm Tools Paper presented at 1997 Annual Conference, Milwaukee, Wisconsin. https://peer.asee.org/6623
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