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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 94 for “"Strain Gauge"”.
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Strain Gauge Utilization for Aerial Vehicle Dynamic Load Measurement
The strain gauge is a commonly used tool for dynamic load and strain measurement of a system. The work presented in this thesis describes the development and evaluation of strain gauges applied to both an aerodynamic decelerator system and an unmanned aerial vehicle. This thesis has three main …
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Highly sensitive strain gauge based entirely on elastomers via molding process
… is mainly about the research on highly sensitive strain gauges based entirely on elastomers and partially about the molding process which is used to fabricate the strain gauge and pattern poly-dimethylsiloxane (PDMS). In this thesis, I demonstrate the design, fabrication and characterization of …
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Venous Blood Pressure Measurements During Exercise by the Strain Gauge and Pressure Amplifier Method
Made available in DSpace on 2014-12-04T21:57:04Z (GMT). No. of bitstreams: 1 0006005.pdf: 9369845 bytes, checksum: e062345a91a08a36c0adabc931532819 (MD5) Previous issue date: 1953
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A new electric strain gauge and its application to structural models subjected to static loads.
Massachusetts Institute of Technology. Dept. of Civil Engineering. Thesis. 1945. Sc.D.
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Post-Processing Method for Determining Peaks in Noisy Strain Gauge Data with a Low Sampling Frequency
… driver safety. One of these studies installed strain gauges on the front and rear brake levers of motorcycles to record the frequency and magnitude of brake presses. The recorded data was sampled at 10 hertz and had a significant amount of noise introduced from temperature and electromagnetic …
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The Measurement of Maximal Bite Force in Human Beings
… comfort. The transducers used were a traditional strain-gauge transducer with and without covering with ethylene vinyl acetate (EVA) sheets, and a newly-developed pressure transducer. Methods: Five separate studies were performed in this project. The experiments were carried out on human volunteer …
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Construction of an optical fiber strian gauge
… focused on the construction of an optical fiber strain gauge that is based on a strain gauge described by Butter and Hocker. Our gauge is designed to generate an interference pattern from the signals carried on two bare single-mode fibers that are fastened to an aluminum cantilever. When the …
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The Fabrication of Integrated Strain Sensors for “Smart” Implants using a Direct Write Additive Manufacturing Approach
… this PhD research is to fabricate an integrated strain gauge that is able to monitor implant strain for diagnosis of the bone healing process. The research work presents a method of fabricating electrical resistance strain gauge sensors using rapid and mask-less process by experimental …
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Strain sensor array using printed single crystalline silicon on plastic substrate
… concentration, introduces a newly developed strain gauge using single crystalline silicon on plastic substrate, and describes the Colpitts oscillator that has the potential of wireless data transmission between sensor and data acquisition unit. In general, a metal strain gauge has high …
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Manufacturing Strain Sensor Via Printed Electronics Onto 3D Printed Substrates
… with 3D printing technology and fabricate a strain gauge sensor. We use various additive manufacturing (AM) techniques including 3D fused filament fabrication (FFF) printing, extrusion printing, and inkjet printing. We used silver nanoparticle ink and studied different conditions to maximize …
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Design and characterization of a low cost dual differential proving ring force sensor utilizing Hall-effect sensors
… has been designed, manufactured, and tested. Strain gauge based force sensors are among the most common methods of measuring static and dynamic forces, yet they suffer from a wide array of negative attributes including: high cost due to signal amplification instrumentation, high temperature …
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Validation of the deck behaviour due to post-tension loading of Ashton arch bridge
… tests. The output parameter, which is the strain and displacement response of the structure, was verified by measuring the elastic deck shortening and the strain gauge readings. Lower tendon extensions were encountered during tensioning. This required calibration of the friction …
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Thermal vacancies in HCP helium-4
… as a function of molar volume. A sensitive strain gauge was used to measure the temperature dependence of the pressure in twenty crystals between 18.17 and 20.9 cm$\sp3$/mole. Absolute lattice parameters at low temperatures were measured for many of these crystals. The temperature dependence …
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Design and fabrication of a MEMS-array pressure sensor system for passive underwater navigation inspired by the lateral line
… silicon and HF-etched Pyrex wafers. A novel strain-gauge resistor design is discussed, and standard CMOS/MEMS fabrication techniques were used to build sensors based on the strain-gauge resistors and thin silicon diphragms. Measurements of the diaphragm deflection and strain-gauge resistance …
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Fluid flow measurement using electrical and optical fibre strain gauges.
… the fluid flow on the sensors are measured using strain gauges. Multidirectional fluid flow measurement has been made possible by vectorial addition of the orthogonal flow components. The fluid speed and direction are generated irrespective of each other. Electrical resistance strain gauges are …
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Ulterius Corrosion Health Monitoring (UCHM) using wireless sensor technologies.
… of µ-Linear Polarisation Resistance (LPR) and µ-strain gauge sensors have been investigated to monitor the development of residual stresses and corrosion reaction beneath the coating. The measurements from µ-strain gauge sensor in response to small temperature gradients can provide instant …
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An automated monitoring system for the production and measurement of metal fatigue
… a "U"-core electromagnet. A small, piezoceramic strain gauge provides a method of picking up the vibrations. To maintain resonance, the signal is used in a positive feedback loop, which incorporates an analogue multiplier to provide AGC. This also keeps the amplitude constant at any desired …
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Aspect ratio effects on wings at low Reynolds numbers
… was used to validate the data obtained by the strain gauge method and there was adequate agreement between the values found through the two methods. From the measurements of pressure done around the airfoil contour one could determine both the location of the laminar separation bubble and the …
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An experimental study of the relationship between forces and moments and vortex breakdown on a pitching delta wing
… were obtained from a six-component internal strain-gauge balance. In addition, smoke flow visualization was conducted to study the development, and breakdown of the leading-edge vortices under static, dynamic, and ramp conditions. The visualization experiment was performed at a Reynolds …
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Effects of Inflow Parameters and Operating Conditions on the Structural Response and Power Production of a Commercial Wind Turbine
… tower has been instrumented with an optical strain gauge array measuring longitudinal deformation at multiple elevations. Wind conditions have been classified into two major profile types on the basis of two key inflow parameters: vertical wind shear and horizontal turbulence intensity. The …
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