Thin film strain gauge sensors for ion thrust measurement

Abstract

In order to measure the thrust produced by a Stationary Plasma Thruster, a measurement system has been developed using a thrust balance with thin Jilm strain gauge sensors. For this purpose, strain gauges were designed and deposited on the columns of the thrust balance fabricated and necessary signal conditioning circuit has been used. Performance of the system developed was studied, in a vacuum chamber under space simulated conditions, by activating the thruster. Insitu calibration was done using Lami's principle. For discharge powers varying @om 210-275 Watts, the measured values of thrust were found to be in the range of 11-16 mN with an accuracy off. ImN and resolution of 0.12 mN. Specijk impulse and eflciency were also estimated.

Investigations on the photoconductivity studies of ZnSe, ZnS and PbS thin films

“…Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License The use of thin films in manufacture active and passive electronic components made it possible to produce very large-scale integrated and microcomputer. Studies on thin films have been responsible for the development of active and passive components, different types of sensors, solar energy conversion, magnetic memory devices, superconducting films, optical image storing devices, electromechanical devices like strain gauge, gas detecting transducers, interference filters and reflection and antireflection coatings (Joachim et al, 2002;Kalyanasundaram and Graetzel, 2010;Cavaco et al, 2007;Lita et al, 2005;Shinya et al, 2000;Stephen et al, 2004;Pierre, 2002;Koc et al, 2005). In addition to major role to a diversity of new technologies, the thin film studies have many new areas of research in solid state physics and chemistry and will continue to pave the way for a variety of problems of basic and technological importance.…”

Comparative Performance Study of Strain Gauge Sensors for Ion Thrust Measurement

“…In addition, it also offers the advantage of adequate temperature compensation (10) . The details of the preparation and deposition of thin film strain gauges are provided in our earlier publication (6) .…”

“…Of the various kinds of applications, thrust measurement plays an important role in space applications where electric propulsion thrusters are mounted on the satellites and activated for reasons such as orbit maintenance, re-positioning and attitude control (1)- (4) . In our earlier papers, we have reported the use of conventional foil type of strain gauges (5) and thin film strain gauge sensors (6) for the measurement of thrust produced by Hall thrusters such as Stationary Plasma Thruster (SPT).…”

Self-Localized Packet Forwarding in Wireless Sensor Networks

“…Wireless Sensor Networks (WSNs) consist of spatially distributed, autonomous sensors that have been fabricated using thin film technology for monitoring physical or environmental conditions, such as moisture, temperature, sound, pressure, light, volatile organic compounds, and many other phenomenon of interest over large sequential scales [1,2,3]. Sensor nodes in the network are outfitted with memory, a radio frequency transceiver, and a power source.…”