摘要:
Drucksensor, insbesondere zur Erfassung des Verbrennungsdrucks oder des Verteilerpumpendrucks für Brennkraftmaschinen, wobei das druckempfindliche Element, üblicherweise ein Dickschichtwiderstand, am Boden eines Trägers angeordnet ist, der mit seinem unteren Teil die Druckgefäßwandung vollständig durchsetzt und bei Druckeinwirkung eine elastische Verformung erfährt, die sich auf das von einem gesonderten Halteteil auf den Boden des im Träger gebildeten Sacklochs gepreßten druckempfindlichen Elements auswirkt, wodurch dieses seine elektrischen Eigenschaften zur Signalauswertung ändert.
摘要:
A detector is provided by coating a fluid conductive material on a flat portion of a diaphragm. The detector includes: a resistor element (3); resistor element electrodes (4), which are overlapped and connected with mutually opposed parts of the resistor element (3); and a linear conductor connected with the resistor element electrodes (4). The resistor element electrodes (4) each include: a linear portion (40S) having a linear inner side facing an inner side of paired one of the resistor element electrodes (4); and peripheral portions (40E) defined at both ends of the linear portion (40S), at least one of the peripheral portions (40E) being connected with the linear conductor. All of the linear portions (40S) are arranged so that inner sides (40L) are arranged mutually in parallel. The resistor element (3) is connected with the linear portion (40S). The peripheral portions (40E) are exposed without being connected with the resistor element (3).
摘要:
A wind turbine blade instrumentation structure (1105) and method is provided for fluid dynamic polymer-based contact sensors (1105) measuring ambient pressure (103) based on the resistivity changes across the sensor. The pressure sensors may applied in predetermined patterns to airfoil structures, such as wind turbine blades (1110), without impacting the blade structure and fluid dynamic characteristics. The pressure sensors measure blade performance with high fidelity. The pressure measurements are transmitted to a processor (1150) to determine blade characteristics and environment including flow separation, stagnation point, angle of attack, lift and drag and wind speed. Further processing of the pressure distribution may identify wind shear, up-flow and yaw error.
摘要:
A fluid dynamic polymer-based contact sensor (100) measures ambient pressure (103) based on the resistivity changes across the sensor under different ambient pressures. The sensor (100) may applied to airfoil structures such as wind turbine blades (110) without impacting the blade structure and fluid dynamic characteristics. The sensor (100) may also be applied to fluid measurements. A pressure-sensing element (105) may be disposed between a base plate (115) at a first end (106) of the pressure-sensing element and a pressure-sensitive diaphragm (125) at a second end (107). The pressure-sensitive element (105) may be formed from conductive composite material formed of a polymer and a conductive filler. In another embodiment of the sensor, the pressure-sensitive element (105) may be formed of a piezoelectric material or an element with a piezo-electric coating layer on top, in the middle or at the bottom of it.
摘要:
A wind turbine blade instrumentation structure (1105) and method is provided for fluid dynamic polymer-based contact sensors (1105) measuring ambient pressure (103) based on the resistivity changes across the sensor. The pressure sensors may applied in predetermined patterns to airfoil structures, such as wind turbine blades (1110), without impacting the blade structure and fluid dynamic characteristics. The pressure sensors measure blade performance with high fidelity. The pressure measurements are transmitted to a processor (1150) to determine blade characteristics and environment including flow separation, stagnation point, angle of attack, lift and drag and wind speed. Further processing of the pressure distribution may identify wind shear, up-flow and yaw error.
摘要:
A fluid dynamic polymer-based contact sensor (100) measures ambient pressure (103) based on the resistivity changes across the sensor under different ambient pressures. The sensor (100) may applied to airfoil structures such as wind turbine blades (110) without impacting the blade structure and fluid dynamic characteristics. The sensor (100) may also be applied to fluid measurements. A pressure-sensing element (105) may be disposed between a base plate (115) at a first end (106) of the pressure-sensing element and a pressure-sensitive diaphragm (125) at a second end (107). The pressure-sensitive element (105) may be formed from conductive composite material formed of a polymer and a conductive filler. In another embodiment of the sensor, the pressure-sensitive element (105) may be formed of a piezoelectric material or an element with a piezo-electric coating layer on top, in the middle or at the bottom of it.
摘要:
Le système de détection décrit comprend un dispositif détecteur (1) pourvu de composants électriques coopérant (40, 41) qui se déplacent les uns par rapport aux autres en réponse à un paramètre environnemental détecté pour produire un signal de réactance, lequel est transmis à un processeur situé à distance comportant un oscillateur destiné à recevoir le signal transmis et à produire un signal induit par transduction dont la valeur correspond à la valeur du paramètre environnemental.
摘要:
Drucksensor, insbesondere zur Erfassung des Verbren nungsdrucks oder des Verteilerpumpendrucks für Brenn kraftmaschinen, wobei das druckempfindliche Element, übli cherweise ein Dickschichtwiderstand, am Boden eines Trä gers angeordnet ist, der mit seinem unteren Teil die Druckgefäßwandung vollständig durchsetzt und bei Druckeinwirkung eine elastische Verformung erfährt, die sich auf das von einem gesonderten Halteteil auf den Boden des im Träger gebildeten Sacklochs gepreßten druckempfindli chen Elements auswirkt, wodurch dieses seine elektrischen Eigenschaften zur Signalauswertung ändert.