摘要:
An electronic scale having a measuring sensor (1 . . . 16), a digital signal processing unit (18), a digital display (19) and an inclinometer (40). The inclinometer derives a signal for the tilt of the scale from the difference of at least two signals. The digital signal processing unit (18) is provided with an additional circuit component or program routine that adds the two signals and, by way of this cumulative signal, corrects the vibration-distorted signal of the measuring sensor (1 . . . 16). A plurality of inclinometers enables the simultaneous detection of momentary gravitational acceleration. For example, in an electric bubble level, the gas bubble moves out of place when tilted and the diameter of the gas bubble changes when the gravitational acceleration changes. The scale thus provides an additional signal for correcting the influence of disturbances with minimum complexity.
摘要:
The invention relates to a filtration system and method for carrying out a process for the filtration of fluids, comprising at least one filtration device with at least one filtration element comprising readable data and a check and/or test apparatus to which the filtration device may be connected, by means of data and testing means lines. The check and/or testing device is connected to a process controller, by data exchange means, for regulation and control of the filtration process and the process controller is connected to a filtration databank, by means of data exchange means, which comprises data sets for at least one filter element and/or for each filtration device and/or for the filtration process. The invention further relates to a computer program product for carrying out a filtration process on fluids whereby program components may be called up from a program memory which support the carrying out of the filtration process.
摘要:
A weighing instrument that incorporates a formula parsing engine and keys for entering a formula. One key is assigned for entering the current mass reading into the formula, based on which a calculated result is obtained and displayed. This result changes according to the entered formula for each weight that is placed on the weighing pan.
摘要:
The invention is relative to a method of statically (non-multiplexed) actuating a liquid crystal display which comprises several segments and a common back electrode, using a microprocessor which serially outputs the data to be displayed, and using a serial/parallel converter which statically makes the data to be displayed available for each segment of the liquid crystal display. The invention has the task of achieving recognition of functional error as follows: The data to be displayed is outputted approximately every 0.1 second by the microprocessor and the data for the individual segments and for the back electrode is inverted at every second data output. The failure of components then results in a blinking of the particular segment and is conspicuously indicated in this manner. In the case of alternating voltage actuation of the liquid crystal display, it is advantageous if the clock pulse of the alternating voltage actuation is also inverted at every second data output.
摘要:
A balance having a setting means with which the relative precision of the weighing result is to be determined can be set by the user. The balance then adapts automatically to the set relative precision. This adaptation can occur, e.g., in the number of positions displayed, in the step width in the last particular position, in the selection of the integration time, in the filtering of the measured values in the digital signal processing unit, in the frequency of the taking over of the measured value into the display and/or at the time of the emission of the standstill signal or of the measured value release signal.
摘要:
An electronic device, and associated method, provided with a circuit board (10) with a set of input contacts (IN/COM), a set of output contacts (OUT/COM) and an electrical circuit (18) connected between the input contacts (IN/COM) and the output contacts (OUT/COM), and a controller. The controller carries out a real-time test of the circuit board using a test signal introduced into the electrical circuit, the electrical circuit (18) being designed as a passive network having a characteristic transfer function and provided with at least one inductive element, which is formed by a conductor wire (201) wound into a coil around a break (202) in the circuit board (10), which in the assembled condition, is penetrated by a ferromagnetic bar or fixing pin (203), such that the inductance of the inductive element in the assembled state differs from the inductance thereof in the disassembled state.
摘要:
An electronic device, and associated method, provided with a circuit board (10), with a set of input contacts (IN/COM), a set of output contacts (OUT/COM) and an electrical circuit (18) connected between the input contacts (IN/COM) and the output contacts (OUT/COM) and a controller. The controller carries out a real-time test of the circuit board using a test signal introduced into the electrical circuit, the electrical circuit (18) being designed as a passive network having a characteristic transfer function and provided with at least one capacitive element, wherein the capacitive element is a conductor surface (221) forming a capacitor in the assembled state with a corresponding, device-side conductor surface (222″), which is connected to the electrical circuit (18) via a contact element in the assembled state, whereby the capacitive value of the capacitive element in the assembled state differs from the capacitive value of the capacitive element in the disassembled state.
摘要:
A device for dosing a number of constituents according to a given formula with a scale (1) containing a formula memory. The scale (1) is equipped with a transponder read unit (2), the given formula is storable in a transponder (4) and transmittable to the formula memory with the transponder read unit (2) and the transponder read unit (2) additionally monitors the dosed constituents during the dosing process. The storage containers (6) for the individual constituents are each provided with transponders (7), so that the individual constituents can be identified by the transponder read unit (2). This enables a simple and reliable transmission of the formula data to the formula memory of the scale and monitoring of the dosing process. Furthermore, the scale can be operated in a generally contact-free manner.
摘要:
The invention relates to a device for carrying out integrity tests on filter elements by means of test gases, comprising a device housing (3), with an electronic controller (4), arranged therein for regulation and control of the progress of a test programme for filter elements, a filter housing (6), for housing a filter element (2) under test, a pneumatic unit (5), connected to the controller (4) and the filter housing (6), in particular for the generation and measurement of gas pressures, an electronic memory unit (10), which may be connected to the filter element (2) under test and a communication unit (13′), connected to the controller (4), for the exchange of data between the controller (4) and the electronic memory element (10). The communication unit (13′) is preferably embodied as an antenna (14′) and the electronic memory element (10) as a transponder (11). In addition to the device a method for carrying out integrity tests and a computer programme product are also disclosed.
摘要:
A measurement system having an analyzer unit (2; 102) and at least one replaceable sensor (1; 101). Each sensor has a transponder (13) in which sensor-specific data is stored. The analyzer unit has an antenna (21) for wireless readout of the data stored in the transponder and for wireless transmission of the power required to operate the transponder. The transponder (13) and the antenna of the analyzer unit (2) are further configured to additionally transmit and receive the measurement signal of the sensor (1) wirelessly. The sensor may be accommodated in a connecting unit (32, 52, 62, 72, 112) configured to be secured to a corresponding mating component (41, 56, 66, 76, 116).