Results 311 to 320 of about 229,107 (335)
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2015 28th IEEE International Conference on Micro Electro Mechanical Systems (MEMS), 2015
This work presents an SU-8 clamped graphene nano-electro-mechanical-system (GNEMS) accelerometer. A suspended graphene membrane is circularly clamped by SU-8, with an additional proof mass made of either SU-8 or gold, located at the center of the membrane. This GNEMS accelerometer is approximately three orders of magnitude smaller than state of the art
Adam Hurst +3 more
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This work presents an SU-8 clamped graphene nano-electro-mechanical-system (GNEMS) accelerometer. A suspended graphene membrane is circularly clamped by SU-8, with an additional proof mass made of either SU-8 or gold, located at the center of the membrane. This GNEMS accelerometer is approximately three orders of magnitude smaller than state of the art
Adam Hurst +3 more
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The Pendulous Accelerometer [PDF]
, 1993 The pendulous accelerometer, one with an unconstrained single degree of freedom pendulum operated closed-loop, may well be the most common navigation accelerometer. In this chapter we will consider three types of pendulous accelerometer: 1. a generic pendulous instrument, 2. the Sundstrand “Q-Flex” design, and 3.
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Accelerometer to accelerometer calibration using particle swarm optimization [PDF]
2017 2nd IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT), 2017 Accelerometer is one of the integral parts of a navigation system which helps in estimating motion parameters of the vehicle to which it is mounted upon. With wide usage of MEMS based sensors in commercial applications such as gaming industry and mobile robotics, these sensors are required to be calibrated appropriately and in as easy manner as ...
Elizabeth Rufus +3 more
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IEEE Instrumentation & Measurement Magazine, 2008
This paper presents the design, manufacture, and testing of a battery-free, wireless threshold accelerometer based on a fully compliant bistable mechanism (FCBM). The FCBM stores threshold acceleration measurements mechanically, eliminating the need for electrical power. The sensorpsilas state can be read wirelessly via a passive RFID tag.
Aaron R. Hawkins +4 more
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This paper presents the design, manufacture, and testing of a battery-free, wireless threshold accelerometer based on a fully compliant bistable mechanism (FCBM). The FCBM stores threshold acceleration measurements mechanically, eliminating the need for electrical power. The sensorpsilas state can be read wirelessly via a passive RFID tag.
Aaron R. Hawkins +4 more
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IEEE Transactions on Power Apparatus and Systems, 1963
A direct measurement of shaft angular acceleration may be made with a conventional drag cup tachometer operated as an accelerometer. In this operating mode the tachometer is supplied with direct current and provides a direct voltage proportional to acceleration.
J. Law, D. W. Novotny
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A direct measurement of shaft angular acceleration may be made with a conventional drag cup tachometer operated as an accelerometer. In this operating mode the tachometer is supplied with direct current and provides a direct voltage proportional to acceleration.
J. Law, D. W. Novotny
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The Monthly Microscopical Journal, 1870
SUMMARYDue to the strong distance dependence of tunnelling current on electrode spacing, tunnelling can be used to measure sub‐ångström‐scale displacements. The sensitivity and relative simplicity of this technique make it well suited for applications in highly sensitive accelerometers.
A. A. Baski, T. R. Albrecht, C. F. Quate
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SUMMARYDue to the strong distance dependence of tunnelling current on electrode spacing, tunnelling can be used to measure sub‐ångström‐scale displacements. The sensitivity and relative simplicity of this technique make it well suited for applications in highly sensitive accelerometers.
A. A. Baski, T. R. Albrecht, C. F. Quate
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In-fiber integrated accelerometer
Optics Letters, 2011A compact in-fiber integrated fiber-optic Michelson interferometer based accelerometer is proposed and investigated. In the system, the sensing element consists of a twin-core fiber acting as a bending simple supported beam. By demodulating the optical phase shift, we obtain that the acceleration is proportional to the force applied on the central ...
Wu Bing +6 more
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Advances in Space Research, 2003
Abstract In the frame of investigating the fundamental nature of gravity, the Laser Interferometer Space Antenna (LISA) mission could open the way to a new kind of observations unreachable from ground. The experiment, based on a V-formation of six drag-free spacecraft, uses the cubic proof masses of inertial sensors to reflect the laser light, acting
Pierre Touboul, M. Rodrigues
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Abstract In the frame of investigating the fundamental nature of gravity, the Laser Interferometer Space Antenna (LISA) mission could open the way to a new kind of observations unreachable from ground. The experiment, based on a V-formation of six drag-free spacecraft, uses the cubic proof masses of inertial sensors to reflect the laser light, acting
Pierre Touboul, M. Rodrigues
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The development of accelerometers
Electronics and Power, 1965Increased interest in accelerometers has been one of the by-products of inertial-guidance studies. This survey of the accelerometer field sketches the basic theory on which the instruments are based, and explains the different categories into which they are divided.
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Journal of Dynamic Systems, Measurement, and Control, 1973
This paper describes a unique single-axis, analog flueric accelerometer which has undergone laboratory evaluation over a range of 0–130 g’s. The device contains essentially no moving parts since the solid proof mass has been eliminated. The accelerometer consists of a hollow, porous cylinder with porous endwalls, and encapsulated within the cylinder is
Albertus E. Schmidlin +2 more
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This paper describes a unique single-axis, analog flueric accelerometer which has undergone laboratory evaluation over a range of 0–130 g’s. The device contains essentially no moving parts since the solid proof mass has been eliminated. The accelerometer consists of a hollow, porous cylinder with porous endwalls, and encapsulated within the cylinder is
Albertus E. Schmidlin +2 more
openaire +3 more sources