On low cost inclination sensors made from selectively metallized polymer

Benz, David; Botzelmann, T.; Heinz, Kuehn; Warkentin, D.

doi:10.1016/j.sna.2005.03.044

Cited by 37 publications

(18 citation statements)

References 1 publication

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“…It is very complicated to calculate numerical equation of (1). In this study, the relationship of self-inductance and nip angle is obtained by experiment.…”

Section: Working Principlementioning

confidence: 99%

“…Most studies have dealt with inclination sensor, whose common principle is the action of gravity. D. Benza (1) reports an innovative low cost concept for the fabrication of micromechanical capacitive inclination sensors. O.Baltag (2) develops a tilt sensor based on magnetic fluid whose liquid property causes the fluid surface keep horizontal and correspond to a change of output.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Multifunctional Angular Position Sensor with Magnetic Fluid

Quan

Shida

2007

IEEJ Trans. SM

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The achievement of inclination angle and inclined direction simultaneously is highly recommended in many application fields. But many researchers are concerning on measuring only one angular parameter which has a limited application. Based on the principle of inclinometer, the paper proposes a sphere-shape angular position sensor for testing two angular parameters based on multifunctional sensing technique. The proposed sensor is mainly characterized in the following respects. First, inclination angle and inclined direction are measured simultaneously with a single structure. Second, a full-range measurement is achieved, which indicates the inclination angle ranges from 0• to 180• and the inclined direction ranges from 0 • to 360• . Its compact and single structure permits widely applications on automobile, robotic system, health science and so on. We herein discuss the configuration of the sensor and its geometrical analysis. A prototype is built, the evaluated results of which examine the feasibility of the sensor. Two angular parameters are successfully evaluated by analyzing the sample points using 2-D cubic spline interpolation.Sphere-shape container is selected instead of utilizing the common cylinder shape because of its uniform to every direction. Magnetic fluid is selected as the inertial element of sensor attributable to its liquidity and electromagnetism character. The liquidity of magnetic fluid causes the flowing to the position with the lowest gravity center and its electromagnetism character permits it to be taken as the core of a coil for amplifying the self-inductance, whose value is only related to the nip angle of coil section and fluid surface.The configuration of the prototype is shown as Fig. 1 Analytic geometry is utilized for analyzing the relationship between three nip angles and angle parameters. Three inductances can be expressed by θ and φ as its variables.where α1, α2 and α3 are the nip angles of three coil sections and the horizontal.In order to prove the feasibility of the sensor and compose the database for data processing, three inductances are measured at some sample points. Fig. 2 shows the surface composed by points with L1, L2 and L3 as their coordinates. A block surface can be obtained, each point on which indicates a unique direction of the whole space. The two center points of the surface are the positions that θ = 0• and θ = 180• .Each contour line displayed represents the inclined direction and the radial distance from the center represents the inclination angle. 2-D cubic spline interpolation is chosen as data processing method due to its smooth peculiarity and high accuracy. The evaluated results prove the feasibility of the proposed sensor. MemberA sphere-shape angular position sensor for measurement inclination angle and inclined direction simultaneously based on multifunctional sensing approach is proposed, which is characterized in the following respects, such as the measurement of two angles, a full-range measurement, and has a compact and single structure. Three...

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“…It is very complicated to calculate numerical equation of (1). In this study, the relationship of self-inductance and nip angle is obtained by experiment.…”

Section: Working Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Multifunctional Angular Position Sensor with Magnetic Fluid

Quan

Shida

2007

IEEJ Trans. SM

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“…Different approaches have been used to develop MEMS based tilt sensors like capacitive [9,12,13], electrolyte [21,14,15], resistive [10], thermal [11], optical [16,17] and inductive [18].…”

Section: Introductionmentioning

confidence: 99%

Triboelectric Nanogenerator Based Self-Powered Tilt Sensor

et al. 2018

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This work focuses on the fabrication and evaluation of triboelectric nanogenerator (TENG) based self-powered tilt sensor. The proposed fabricated structure is composed of polydimethylsiloxane (PDMS), steel ball, gold (Au) as electrode and circular ring housing. A specific configuration of electrodes was used to measure the tilt at different angles. FEM simulations were used to verify the electric potential at the electrodes at different angles. The outputs of the fabricated sensor were measured at different angles from 0 to 360°. A sensitivity of 254 mV/rad is obtained in single axis. The TENG based tilt sensor generates an open circuit voltage of 450 mV at 10 MΩ.

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“…Most conventional tilt sensors are of an electronic type, transforming the inclination into electronic signals through a magnetic effect [1][2][3][4] or a capacitive effect [5]. Comparing with those tilt sensors above, optical fiber tilt sensors [6][7][8][9][10][11][12][13] have important advantages of electrically passive operation and immunity to electromagnetic interference, and most of the sensors are based on fiber Bragg gratings (FBGs).…”

Section: Introductionmentioning

confidence: 99%

Tilt sensor based on intermodal photonic crystal fiber interferometer

Zhang

Chen

et al. 2014

Photonic Sens

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A tilt sensor based on an intermodal photonic crystal fiber (PCF) interferometer is demonstrated. The sensor consists of a tubular filled with NaCl aqueous solutions and an intermodal PCF interferometer, which is formed by using a short PCF with two single-mode fibers (SMFs) spliced at both ends, and the air-holes in the splice regions are fully collapsed. The intermodal PCF interferometer is fixed in a rigid glass tubular with a slant orientation, and a half of the PCF is immersed in the NaCl aqueous solutions, while the other half is exposed in air. When tilting the tubular, the length of the PCF immersed changes so that the transmission spectrum moves. Therefore, by monitoring the wavelength shift, the tilt angle can be achieved. In the experiment, a 0.8-cm-length intermodal PCF interferometer was adopted. The sensitivity of the proposed sensor was obtained from -1.5461 nm/° to -30.1244 nm/° when measuring from -35.1° to 37.05°.

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On low cost inclination sensors made from selectively metallized polymer

Cited by 37 publications

References 1 publication

A Novel Multifunctional Angular Position Sensor with Magnetic Fluid

A Novel Multifunctional Angular Position Sensor with Magnetic Fluid

Triboelectric Nanogenerator Based Self-Powered Tilt Sensor

Tilt sensor based on intermodal photonic crystal fiber interferometer

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