| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324109000 | Electrostatic attraction or piezoelectric | 14 |
| 20080272763 | Antistatic Demonstrator - The present invention relates to a device for demonstrating the antistatic properties of at least one first transparent glass substrate, at least part of one of the main surfaces of which is an antistatic surface, said device comprising a hollow box having an upper surface provided with at least one window to which said first transparent glass substrate is fitted, wherein said box contains elements capable of moving under the action of electrostatic attraction, said elements being chosen from cellular particles of synthetic or natural polymers, individualized fibres of synthetic or natural polymers and their blends. | 11-06-2008 |
| 20100156392 | FOIL-LEAF ELECTROMETER FOR STATIC FIELD DETECTION WITH TRIGGERED INDICATOR - An apparatus for detecting a static field includes two surfaces of conductive material that are: (i) electrically coupled to each other, and (ii) adjacent to each other. The two surfaces repel each other in the presence of a static field. A rupturable indicator bridging and coupled between the two surfaces ruptures upon repulsion of the two surfaces from each other by at least a predetermined distance. | 06-24-2010 |
| 20100164478 | CLOTH FOR ELECTRIC DEVICE - Cloth in which fibers include conductive polymer fibers in order to provide a sensor and an actuator, which use cloth including excellent sensing function and actuation function. | 07-01-2010 |
| 20100231196 | SERVICE LIFE INDICATOR FOR CHEMICAL FILTERS - A method is provided for indicating the useful service life of a gas filtration and purification system comprising steps of embedding two or more mass-responsive electronic sensors (e.g., surface acoustic wave devices) in a sorbent bed of a filtration cartridge, wherein the mass-responsive electronic sensors are coated with a non-conductive absorptive organic polymer; passing a gas containing a volatile chemical of interest through the filtration cartridge and in contact with the two mass-responsive electronic sensors; and measuring a difference in an electronic property between the two mass-responsive electronic sensors. In such a manner, the two mass-responsive electronic sensors act as internal references with respect to each other, thereby eliminating variations in temperature, interferents, pressure, and the like. When the volatile compound is no longer retained by the sorbent bed, a difference electronic properties of the mass-responsive sensors indicates that the filtration cartridge should be replaced. | 09-16-2010 |
| 20110187347 | ELECTROMECHANICAL TRANSDUCER AND A METHOD OF PROVIDING AN ELECTROMECHANICAL TRANSDUCER - The invention relates to an electromechanical transducer ( | 08-04-2011 |
| 20110248700 | DEVICE AND METHOD FOR DETECTING A SUBSTANCE USING A THIN FILM RESONATOR (FBAR) HAVING AN INSULATING LAYER - A device for detecting at least one substance of a fluid, has a piezoacoustic thin film resonator with a piezoelectric layer on which electrode layers are arranged, and an adsorption surface for adsorbing the fluid substance, wherein the piezoelectric and electrode layers and the adsorption surface are designed and arranged on each other such that by electrically activating the electrode layers, an excitation alternating field can be coupled into the piezoelectric layer. The thin film resonator can be excited to a resonance oscillation frequency f | 10-13-2011 |
| 20110316522 | Sensing device - To provide a sensing device that holds a piezoelectric sensor and a channel forming member placed on the sensor in a closely contacted state while maintaining a shape of space of a passage space formed inside the device. In a sensing device | 12-29-2011 |
| 20120013325 | METHOD FOR DETERMINING A NEEDLING CLOSING IN A PIEZOINJECTOR - In a method for determining a needle closing of a valve needle that is driven by a piezoactuator, a signal of a voltage present at the piezoactuator is measured and the needle closing is detected from a curve of the signal. | 01-19-2012 |
| 20120229121 | SYSTEM AND METHOD FOR DETECTING SURFACE PERTURBATIONS - This disclosure provides systems, methods and apparatus for assessing a surface using a piezoelectric element. In one aspect, the method includes applying a device to the surface, wherein the device includes at least one piezoelectric element and at least one EMS device, wherein the EMS device includes a conductive first layer separated from a conductive second layer, and wherein the piezoelectric element is electrically coupled to the EMS device such that a force applied to the piezoelectric element results in a voltage applied across the first and second layers. | 09-13-2012 |
| 20130069630 | SELF-MONITORING COMPOSITE VESSEL FOR HIGH PRESSURE MEDIA - A high pressure media storage vessel including a wall made of at least one layer with barrier and piezoelectric properties. | 03-21-2013 |
| 20140002058 | TRIAXIAL PIEZOELECTRIC SENSOR | 01-02-2014 |
| 20140077793 | PIEZOELECTRIC ELEMENT FEEDER CAPABLE OF MEASURING ELECTRIC CHARACTERISTICS OF PIEZOELECTRIC ELEMENT AND METHOD OF MEASURING ELECTRIC CHARACTERISTICS OF PIEZOELECTRIC ELEMENT - A piezoelectric element feeder for feeding a piezoelectric element, includes a drawing unit that draws a first electrode surface of the piezoelectric element with use of negative pressure and transfers the piezoelectric element onto the actuator attaching part and a probe movably supported with the drawing unit and used to measure electric characteristics of the piezoelectric element. A front end of the probe is brought into contact with the first electrode surface when or just before the drawing unit draws the first electrode surface, to enable a measurement of the electric characteristics of the piezoelectric element. | 03-20-2014 |
| 20140232375 | Piezo Sensor - A piezo sensor having an inner conductor having an inner conductor segment, where the inner conductor segment forms a tubular sidewall having a break, and also having an interior surface and an exterior surface; a plurality of individually polarized piezoelectric members, each having an inner face and an outer face, and each inner face contacting the first conductor exterior surface, each piezoelectric member being adjacent to another on the exterior face of the inner conductor, forming sets of adjacent faces; an outer conductor having an outer conductor segment forming a tubular sidewall having a break, the outer conductor having an interior surface and an exterior surface, where the interior surface contacts the outer face of the piezoelectric members; and where the break of the outer conductor segment is alignable with adjacent faces of two of the plurality of piezoelectric members, and further being alignable with the break of the inner conductor segment. | 08-21-2014 |
| 20140368188 | SYSTEM AND METHOD FOR MEASURING VARYING PARAMETERS USING ADAPTIVE SIGNAL CONDITIONING - A method includes receiving a signal associated with one or more sensors. The method also includes examining one or more parameters of a signal conditioning circuit to determine whether clipping of the signal has occurred. The method further includes, upon a determination that clipping of the signal has occurred, decreasing a gain of the signal conditioning circuit. In addition, the method includes, upon a determination that clipping of the signal has not occurred, determining whether a cut-off frequency of the signal conditioning circuit is within a range of a frequency response of an object measured by the one or more sensors. The method can further include changing the cut-off frequency of the signal conditioning circuit and increasing a resistance or a capacitance of the signal conditioning circuit. | 12-18-2014 |
