Measuring transducer having two transmission channels

A technology for measuring sensors and transmission channels, which is applied in the field of measuring sensors and can solve problems such as expensive, difficult to achieve linearization, and short response time

Active Publication Date: 2013-02-27
PHOENIX CONTACT GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In an analog configuration, the response time to a step on the input side is usually much shorter; however, linearization is much more difficult and expensive to achieve in an analog configuration

Method used

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  • Measuring transducer having two transmission channels

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Embodiment Construction

[0022] figure 1 A measuring sensor according to the invention is shown. The measuring sensor has a first transmission channel 100 and a second transmission channel 200 .

[0023] The first transmission channel 100 processes the analog measurement input signal I from the analog signal generator in an analog manner and outputs it as a processed measurement signal.

[0024] Similarly, the second transmission channel 200 processes the analog measurement input signal I and outputs it as an influencing signal.

[0025] The processed measurement signal and influence signal are synthesized and output as the measurement output signal O.

[0026] In contrast to the first transmission channel 100 , in which the analog measurement input signal I from the measurement signal generator is processed in analog, the second transmission channel 200 digitally processes the analog measurement input signal I from the measurement signal generator.

[0027] In the analog branch of the measuring se...

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Abstract

The invention proposes a measuring transducer, having a first transmission channel (100) which conditions an analogue measurement input signal (I) in an analogue manner and makes it available as a conditioned measurement signal. In addition, the measuring transducer has a second transmission channel (200) which conditions the analogue measurement input signal (I) and makes it available as an influencing signal, wherein the conditioned measurement signal and the influencing signal are combined and made available as a measurement output signal (O). In a further embodiment of the invention, a measuring system has a temperature sensor and a measuring transducer according to the invention.

Description

technical field [0001] The invention relates to a measuring sensor, in particular to a measuring sensor with two transmission channels. Background technique [0002] Measurement sensors are used in a very wide variety of applications. Their purpose is to convert the input signal from the measurement signal generator into the desired output signal. This is necessary whenever the generated measurement signal is not compatible with the subsequent processing unit. [0003] Usually, these measuring sensors are designed as only analog or only digital. [0004] In digital configurations, the incoming measurement signal is converted by an analog-to-digital converter, post-processed in some cases by a microcontroller, and converted back to an analog signal by a digital-to-analog converter. [0005] Typically, linearization is performed in post-processing such that both the non-linearity of the measurement signal generator and the non-linearity of the analog data conversion are sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K7/21G01D3/02
CPCG01K1/00G01K2219/00G01D3/022G01K7/21
Inventor 海因茨-W.·迈尔·迈尔法比安·青克
Owner PHOENIX CONTACT GMBH & CO KG
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