Measuring transducer
A technology for measuring transducers and measuring quantities, which is applied in the field of measuring transducers and can solve the problems of expensive manufacturing of two-chamber shells.
Active Publication Date: 2014-09-10
EHNDRESS KHAUZER GMBKH KO KG
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- Abstract
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AI Technical Summary
Problems solved by technology
However, the production of the two-chamber housing is relatively expensive, since at least one additional housing opening has to be provided with a corresponding housing cover
Method used
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Embodiment Construction
[0023] According to the measuring transducer of the present invention the figure 1 The exemplary embodiment shown is a pressure measuring transducer with a metal electronics housing 1a, which is produced as a casting and is closed with a metal cover 1b. The electronics housing 1 b is placed on a metallic sensor housing 2 , in particular made of stainless steel. The measuring transducer comprises a connection head 3 in the side of the substantially cylindrical electronics housing 1a, wherein supply and signal lines 4 are guided via the connection head 3 into the electronics housing 1a for feeding the measuring transducer It is powered and transmits its measurement signal.
[0024] The supply and signal lines 4 are connected via connections 5 to the so-called main electronics 6 of the measuring transducer, which corresponds to the second electronic circuit defined according to the invention. Main electronics 6 is in turn connected to shielding device 9 by means of connecting l...
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The invention relates to a measuring transducer for providing a measured value for a control system, comprising a sensor (15, 16) having a converter for outputting a primary signal dependent on the measurement variable, a first electronic circuit (14) for processing the primary signal to form an intermediate signal, a second electronic circuit for processing the intermediate signal to form a signal presenting the measured value, wherein the second electronic circuit has a signal output for outputting the signal to connection lines, a housing arrangement having a metallic material, wherein the first electronic circuit has at least one first circuit carrier and the second electronic circuit has at least one second circuit carrier, and wherein the first and second electronic circuits are positioned at a distance from each other in the housing assembly, and an electrically conductive shielding and high-frequency filters for protection from HF interference, which can penetrate the housing arrangement via the connection lines, wherein the electrically conductive shielding and the high-frequency filters are between the first and second circuit carriers.
Description
technical field [0001] The invention relates to a measuring transducer, in particular for providing a control system with a measured value of at least one measured variable, in particular a process parameter of a medium. Common process parameters of the medium are, for example, absolute pressure, relative pressure and differential pressure, filling state, temperature, mass flow or volume flow, density, toughness, pH value or other potentiometric measurements, oxygen content, conductivity, turbidity , a total parameter like the total content of organic carbon. Background technique [0002] A generic measuring transducer for providing a measured value of at least one measured variable to a control system comprises a sensor, a first electronic circuit, a second electronic circuit and a housing arrangement, wherein the sensor has an electrical converter for an output dependent on an initial signal of the current value of the measured quantity; the first electronic circuit is us...
Claims
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IPC IPC(8): G01F15/14G01D11/24G01F15/00
CPCG01F15/00G01F23/00G01F15/14H05K7/1427G01D11/245H05K9/0007H05K7/1462
Inventor 克劳斯·拉夫拉尔夫·斯蒂比
Owner EHNDRESS KHAUZER GMBKH KO KG