Abstract:
An electronic sensing device (2) comprising a housing(4) rotationally symmetric about an axis. A sensing unit is fixed within the housing and is arranged to provide sensor data.The sensing unit comprises at least one accelerometer and/or at least one gyroscope. A wireless communication transceiver is arranged to transmit said sensor data to an external electronic device for processing. The device further comprises amounting arrangement (10, 30) adapted to connect the electronic sensing device (2) to a user-operated peripheral device such that the sensing unit is only in a predefined location and a predefined orientation about the axis relative to the user-operated peripheral device.
Abstract:
A microelectromechanical sensor (MEMS) package includes a gyroscope and an accelerometer. The gyroscope is located within a low-pressure cavity that is sealed from an external pressure. The accelerometer is located within a cavity, and the seal for the accelerometer cavity is entirely within the gyroscope cavity. Under normal operating conditions, the accelerometer seal holds the accelerometer cavity at a higher pressure than the pressure of the enclosing gyroscope cavity. In the event that one of the gyroscope seal or the accelerometer seal is broken, the gyroscope senses the change in pressure and a failure is identified.
Abstract:
Die Erfindung betrifft ein Verfahren zur Herstellung eines Beschleunigungssensors mit einem in seiner Grundform zylinderförmigen oder kubischen Gehäuse (1) mit mindestens einer innenliegenden Abstützung (4) und mit einem darauf angeordneten Sensorelement (2). Erfindungsgemäss wird ein Sensorelement (2) umfassend einen Grundkörper (29) mit Kopfteil (21) und diesem gegenüberliegender Stirnfläche (24) vormontiert, indem das Kopfteil (21) mit mindestens einem piezoelektrischen Messelement (23), einer seismischen Masse (22) und einem Spannring (27) umgeben wird. Anschliessend wird die Stirnfläche (24) berührend an die innere Abstützung (4) des Gehäuses (1) zur Bildung einer Kontaktzone (7) zwischen Stirnfläche (24) und Abstützung (4) positioniert. Schliesslich wird das Sensorelement (2) in dieser Kontaktzone (7) mit dem Gehäuse (1) verschweisst. Die Erfindung betrifft auch einen derart hergestellten Beschleunigungssensor.
Abstract:
A method of making a system-in-package device, and a system-in-package device is disclosed. In the method, at least one first species die with predetermined dimensions, at least one second species die with predetermined dimensions, and at least one further component of the system-in-device is included in the system-in package device. At least one of the first and second species dies is selected for redimensioning, and material is added to at least one side of the selected die such that the added material and the selected die form a redimensioned die structure. A connecting layer is formed on the redimensioned die structure. The redimensioned die structure is dimensioned to allow mounting of the non-selected die and the at least one further component into contact with the redimensioned die structure via the connecting layer.
Abstract:
The present invention relates to a device for mounting a sensor to a curved component surface. The mounting device (170) has a first side at which the sensor (180) is attached and a second side which has a radius of curvature. Further, the mounting device has an aperture that is shaped to receive an insert part (185) of the sensor, and a first sealing element (191) is provided around the aperture, at the first side of the device. According to the invention, the first sealing element is provided on a first recessed surface of the mounting device, which is defined between a first upstanding rim and a second upstanding rim. The first and second rims extend in a circumferential direction of the device and provide a contact surface for an attachment part (183) of the sensor. In addition, the first and second rims retain the first sealing element in both axial directions.
Abstract:
The present invention relates to a sensor apparatus (1) for determining a crank cadence and a bicycle speed. The sensor apparatus (1) comprises a housing (2) with an accelerometer (4) with first and second perpendicular measurement axes (z, y), capable of providing first and second signals dependent on the two measurement axes (z, y), a wireless transmitter (6), and a power source (8). The housing (2) comprises an attachment means (3) for attaching the housing (2) to a wheel of the bicycle. The sensor apparatus (1) further comprises a first means for determining the cadence from the rate at which consecutive changes of polarity occur in the first signal, or from the rate at which consecutive positive and negative extreme values occur in the first signal, and a second means for determining the speed from the rate at which consecutive maximum and minimum extreme values occur in the second signal.
Abstract:
The invention relates to a distance encoder sensor for use in an automobile, having a sensor module, a housing, at least one electrical connection of the sensor module (contact element), characterized in that the at least one contact element of the sensor module creates an electrical connection to a corresponding contact element of the housing with a force or form fit, the sensor module is inserted or placed in the housing, and the sensor module is fixed in or on the housing with a force or form it.