Abstract: A package enclosing at least one microelectronic element (60) such as a sensor die and having electrically conductive connection pads (31) for electric connection of the package to another device is manufactured by providing a sacrificial carrier; applying an electrically conductive pattern (30) to one side of the carrier; bending the carrier in order to create a shape of the carrier in which the carrier has an elevated portion and recessed portions; forming a body member (45) on the carrier at the side where the electrically conductive pattern (30) is present; removing the sacrificial carrier; and placing a microelectronic element (60) in a recess (47) which has been created in the body member (45) at the position where the elevated portion of the carrier has been, and connecting the microelectronic element (60) to the electrically conductive pattern (30). Furthermore, a hole (41) is arranged in the package for providing access to a sensitive surface of the microelectronic element (60).

Abstract: In a method for determining road clearance of a vehicle, the vehicle is moved relative to a measurement configuration with a reference surface. One or more magnets, which are disposed on the vehicle and assigned preferably each to a defined measurement point on the vehicle, is detected by at least one device for magnetic field measurement. With the help of at least one device for separation measurement, the separation between the measurement configuration and the bottom side of the vehicle is determined. In this way, a rapid, reliable, repeatable and flexibly usable method for the determination of the road clearance of a vehicle is provided. A corresponding device is provided for implementing the method.

Abstract: A chassis dynamometer for use with a test vehicle such as a snowmobile is provided. First and second spaced apart rolls support the test vehicle. A belt is arranged around the first and second rolls and rotationally couples the rolls to one another. The belt includes an outer surface on a test side of the belt for supporting the test vehicle. The belt reduces slipping of the track on the dynamometer. The belt receives inputs from the test vehicle. A processor quantifies the inputs from the test vehicle. A platform is arranged between the first and second rolls beneath the belt to maintain engagement of the track with the belt. The platform includes a load cell for detecting a longitudinal load imparted to the platform by the belt.

Abstract: The present invention relates to a system and a method for compensating for predicted meter drift is a positive displacement meter comprising a pulser connected to the meter for generating a pulse stream indicative of a current volume delivered through the meter; and a pulse processor in electronic communication with the pulse generator. The pulse processor adds or subtracts pulses indicative of the inverse of the predicted meter drift to or from the pulse stream to create a corrected pulse stream. The amount of inverse applied is determined by the value of the current cumulative volume passed by the meter.

Abstract: A method for detecting water meter malfunction and calculating the duration thereof, includes measuring the average flow rate for each volume unit detected after the preceding volume unit, comparing this average flow rate with two limit flow rates which are a first flow rate corresponding to the minimal flow rate when the meter is operating normally and a second flow rate corresponding to the minimal flow rate when the meter is operating defectively, calculating, when an average flow rate is found to be higher than the first flow rate, the relation between the sum of recorded volume units between the two flow rates and the sum to which is added the sum of volume units recorded at flow rates higher than the second flow rate, starting a clock when this relation is lower than a defectiveness threshold and stopping it when the relation is once more higher than the said threshold.

Abstract: A measure obtained by a counting circuit (2) is converted by a processing circuit (3) to an indication angle signal at a predetermined conversion cycle. A smoothing circuit (4) comprises a division circuit (11) for calculating the difference between the previous indication angle data .theta..sub.0 and the present indication angle data .theta..sub.1 which is outputted after the conversion cycle T and has changed, and sequentially accumulating the angle data corresponding to T/n (where n is an integer of 2 or more) shorter than the conversion cycle T at a division cycle T/n and a voltage memory (12) for converting and outputting a two-phase driving signal for driving a stepper motor type measuring instrument (6) on the basis of the indication angle data .theta..sub.i outputted from the division circuit (11) every division cycle T/n. A voltage signal is generated through an output circuit (5) for converting the signal to a voltage signal to be applied to a two-phase excitation coil of a stepper motor.

Abstract: In a fluid flow measuring apparatus, a flow of fluid is established through the apparatus at a first known flow rate. For each of two states of the apparatus, electrical drive pulses are applied to transmitting transducers. From the output signals of receiving transducers upcount and downcount values are derived which are indicative of the elapsed times between the drive pulses applied to the transmitting transducers and the zero crossings of the output signals of the receiving transducers, with the values being stored in a form that indicates the frequency of occurrence thereof. At least one test is applied to the stored upcount and downcount values to determine if the values have an acceptable distribution and if so using the stored values to determine a first calibration value for the apparatus. Then a flow of fluid is established through the apparatus at a second known flow rate. Again, for each of two states of the apparatus, electrical drive pulses are applied to transmitting transducers.

Abstract: A test connector for connecting an air brake test device to access ports provided on an air brake control valve device where such access ports are normally closed by check valves is disclosed. In one embodiment, a plurality of stem operators project into the access ports without opening the check valves therein when the test connector is installed in position on the control valve device. A handle is provided to effect rotation of an eccentric shaft on which the stem operators are connected to unseat the check valves and thereby access air at the respective access ports when it is desired to initiate testing following installation of the test connector. In an alternate embodiment, a plurality of test probes pivotally mounted on the test connector body enter the access ports and unseat the check valves in the course of installing the test connector in position on the control valve. In both embodiments, the stem operators/test probes are self-aligning to facilitate installation of the test connector.