Results 211 to 220 of about 50,210 (255)
Some of the next articles are maybe not open access.
Composite sensor and acceleration sensor
The Journal of the Acoustical Society of America, 2010In an acceleration sensor, a first vibrator is arranged on a surface of a substrate such that the vibrator can vibrate in an X-axis direction. An angular-velocity-detecting vibrator is arranged inside the first vibrator such that the vibrator can be displaced in a Y-axis direction.
openaire +1 more source
Acceleration and deceleration sensor
The Journal of the Acoustical Society of America, 1987An acceleration and deceleration sensor for use with safety devices in motor vehicles includes a reed switch and a movably mounted permanent magnet system which closes the switch during a collision. The permanent magnet system is provided by a pair of magnets having like poles which face each other, so that the magnets repel each other.
openaire +1 more source
Semiconductor acceleration sensor
The Journal of the Acoustical Society of America, 1998A semiconductor acceleration sensor including a trench provided in a main surface of a semiconductor substrate, the trench having a first inner wall, a second inner wall opposite to the first inner wall, and a third inner wall joining the first and second inner walls.
openaire +1 more source
The Journal of the Acoustical Society of America, 2009
An acceleration sensor, including: an oscillator unit for outputting an oscillator signal, the oscillator unit including a first piezoelectric vibrating reed having a vibrating arm that performs bending vibration, as well as an oscillator circuit for oscillating the first piezoelectric vibrating reed; a phase shifting unit for shifting and outputting a
openaire +1 more source
An acceleration sensor, including: an oscillator unit for outputting an oscillator signal, the oscillator unit including a first piezoelectric vibrating reed having a vibrating arm that performs bending vibration, as well as an oscillator circuit for oscillating the first piezoelectric vibrating reed; a phase shifting unit for shifting and outputting a
openaire +1 more source
Multicomponent acceleration sensor
The Journal of the Acoustical Society of America, 1995A multicomponent acceleration sensor in which the inertial force of a seismic mass effects a variation in an electromagnetic quantity of a plurality of individual transducers. During acceleration, the seismic mass acts in each individual transducer a magnetoelastic measuring layer, the permeability μr of which influences the inductance of a sensor coil.
openaire +1 more source
Surface Micromachined Acceleration Sensors
2020Micromechatronic sensors have many applications in measuring linear acceleration along one or several axes. For example, accelerometers are widely applied in cars for detecting crashes and for triggering the release of airbags. In mobile devices, they switch the display between landscape and portrait format.
Stephanus Büttgenbach +3 more
openaire +1 more source
Microwave ferrite acceleration sensors
IEEE Transactions on Electron Devices, 1969This paper presents a new and potentially simple method of producing a frequency shift proportional to sensed acceleration in a passive microwave device. Magnetostriction effects in microwave ferrite rods are employed to convert an applied stress (acceleration) to a shift in resonant frequency.
E.F. Nitka, T.K. Ishii
openaire +1 more source
Piezoelectric angular acceleration sensor
IEEE Symposium on Ultrasonics, 2003, 2004This paper deals with a piezoelectric angular acceleration sensor, which might be proposed by us, first, as a new concept of the sensor to detect a rotational motion only. In the first part of this paper are dealt with some concrete constructions of this new concept of angular acceleration sensor, composed of piezoelectric transducers.
Y. Tomikawa, S. Okada
openaire +1 more source
The Journal of the Acoustical Society of America, 1993
Kazuo Yoshimura +2 more
openaire +2 more sources
Kazuo Yoshimura +2 more
openaire +2 more sources
Micromachined rate and acceleration sensor
The Journal of the Acoustical Society of America, 1996A sensor (10) is disclosed for measuring the specific force and angular rotation rate of a moving body and is micromachined from a silicon substrate (16). First and second accelerometers (32a and b) are micromachined from the silicon substrate (16), each having a force sensing axis (38) and producing an output signal of the acceleration of the moving ...
openaire +1 more source