WO2011157832A2 - Messumformer mit zwei übertragungskanälen - Google Patents
Messumformer mit zwei übertragungskanälen Download PDFInfo
- Publication number
- WO2011157832A2 WO2011157832A2 PCT/EP2011/060139 EP2011060139W WO2011157832A2 WO 2011157832 A2 WO2011157832 A2 WO 2011157832A2 EP 2011060139 W EP2011060139 W EP 2011060139W WO 2011157832 A2 WO2011157832 A2 WO 2011157832A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- transmission channel
- analog
- measurement
- transmitter according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/02—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for altering or correcting the law of variation
- G01D3/022—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for altering or correcting the law of variation having an ideal characteristic, map or correction data stored in a digital memory
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
- G01K7/20—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
- G01K7/21—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit for modifying the output characteristic, e.g. linearising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2219/00—Thermometers with dedicated analog to digital converters
Definitions
- the invention relates to a transmitter, in particular a transmitter having two transmission channels.
- Transmitters are used in a wide range of applications. Your task is to provide an input signal from a measuring signal generator in a desired output signal
- these transducers are purely analog or purely digital.
- the input measurement signal is converted by an analog-to-digital converter, under
- a linearization is typically carried out here so that non-linearities of the measuring signal generator as well as the analog-to-digital conversion in the output signal are essentially no longer visible.
- This linearization can be done both on well-known physical properties as well as on measured
- Parameters of the measuring signal transmitter and / or the digital transmitter are based.
- the invention proposes a measuring transducer which has a first transmission channel which is an analogue
- Measurement input signal processed in an analogous manner and provides as conditioned measurement signal
- the transmitter has a second transmission channel, which processes the analog measurement input signal and provides it as an influencing signal, wherein the conditioned measurement signal and the
- Influence signal combined as a measurement output signal is provided.
- the second transmission channel prepares the analog measurement input signal in a digital manner.
- the first transmission channel has a modulator and a
- the first transmission channel to a transformer.
- the second transmission channel to an analog-to-digital converter and a digital-to-analog converter.
- the second transmission channel to an analog-to-digital converter and a digital-to-analog converter.
- Transmission channel has an opto-coupler.
- the second transmission channel has an arithmetic processing unit.
- the influencing signal contributes to the measuring output signal less than half, preferably +/- 10 ... 5%.
- the second transmission channel has a feedback of the
- Measuring output signal for comparing the measuring input signal with the measuring output signal.
- the feedback is executed switched off.
- Measurement input signal a temperature measurement input signal.
- a measuring system has a temperature sensor and a
- FIG. 1 shows a
- FIG. 1 shows a transmitter according to the invention. This has a first transmission channel 100 and a second transmission channel 200.
- the first transmission channel 100 prepares an analog measuring input signal I of a measuring signal generator of an analogous manner and makes it available as a conditioned measuring signal.
- the second transmission channel 200 also prepares the analog measurement input signal I, it presents as
- Measurement output signal 0 provided.
- the second transmission channel 200 prepares the analog measurement input signal I of the measurement signal generator in a digital manner.
- Transmission channel can be used for signal processing
- Modulator 100 and a demodulator 200 may be provided. Its task within the first transmission channel 100 is to transform a measuring input signal I of a measuring signal generator into a desired output signal. In this case, by suitably selecting the modulator 100 as well as the demodulator, the desired input ranges of the measurement input signal I and the desired output ranges can be set.
- Transmitter 110 have. By means of the transformer 110, both ratios can be translated and thus the desired input ranges of the measuring input signal I and the desired output ranges can be set further as well as a suitable embodiment, a galvanic isolation of the measurement input signal of subsequent
- the second transmission channel 200 comprises an analog-to-digital converter 210 and a digital-to-analog converter 230. Its task within the first transmission channel 200 is to transform a measurement input signal I of a measurement signal generator into a desired output signal. In this case, it can be achieved by suitably selecting or programming the analog-to-digital converter 210 and / or the digital-to-analog converter 230 that the desired
- the second transmission channel 200 may still have an opto-coupler, whereby a galvanic separation of the measuring input signal of subsequent
- Processing levels can be achieved.
- both the analog-to-digital converter 210 and the digital-to-analog converter 230 may have an arithmetic processing unit. With this arithmetic
- Arithmetic unit may e.g. a range conversion as well as a linearization are performed.
- the output signal of the first transmission channel 100 and the output signal of the second transmission channel 200 which is referred to as an influencing signal, become a
- the degree with which the signals each flow into the combined measurement output signal 0 can be configured differently. Due to the design of the first transmission channel 100 as an analog transmission channel and the second
- Transmission channel 200 as a digital transmission channel, the respective advantage of both types of processing can be used.
- the analog transmission channel allows fast response time while over the digital
- Measuring signal encoder and the transmitter can be made in total.
- the proportion of the second transmission channel is low, that is, the
- Influence signal contributes to the measurement output less than half, preferably +/- 10 ... 5%, at.
- the transmitter may include an output stage 300 for amplifying the combined signal obtained by the combining unit 140.
- the second transmission channel 200 may be a feedback 410 of the actual measurement output signal 0 for comparing the measurement input signal I with the actual one
- Measuring output 0 have.
- Output signal 0 is not correlated in the desired mass to the measurement input signal I, it can be controlled by means of a switching connection 420, a switching stage 400 in the output branch of the transmitter, so that the
- Output signal is set in a safe state.
- This state can be predetermined, for example, by SIL.
- the switching stage 400 may, for example, be configured as a transistor, wherein the switching connection 420 controls the gate or the base or the like.
- the feedback 410 and the switching line 420 can be switched off.
- the output stage 300 by means of
- a comparison that the actual output signal O is not correlated in the desired mass to the measurement input signal I, can be carried out both analog and digital.
- the measurement input signal I is already digital behind the analog-to-digital converter 210 so that a comparison can now be made at a suitable location. This comparison can
- arithmetic arithmetic unit to form a functional unit. It is also conceivable that the analog-to-digital converter 210 and the digital-to-analog converter 230 form a functional unit. Furthermore, the switching stage 400 and the output stage 300 may form a functional unit. As already described, transmitter in
- Measurement input signal a temperature measurement input signal. Therefore, there is further provided both a measuring system with a temperature sensor, e.g. to provide a Pt100 sensor and a transmitter according to the invention. In such a measuring system can by parametrization on
- Single calibration can be performed in the test field, so that the entire system can be used for safety applications.
- Analog-to-digital converter 210 Analog-to-digital converter 210
- Analog-to-digital converter 230 Analog-to-digital converter 230
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Technology Law (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR112012031961A BR112012031961A2 (pt) | 2010-06-18 | 2011-06-17 | transdutor de medição com dois canais de transmissão |
| US13/805,316 US9506810B2 (en) | 2010-06-18 | 2011-06-17 | Measuring transducer having two transmission channels |
| EP11741135.5A EP2583070B1 (de) | 2010-06-18 | 2011-06-17 | Messumformer mit zwei übertragungskanälen |
| CN201180030171.3A CN102947684B (zh) | 2010-06-18 | 2011-06-17 | 具有两个传输通道的测量传感器 |
| RU2012153372/28A RU2552594C2 (ru) | 2010-06-18 | 2011-06-17 | Измерительный преобразователь с двумя каналами передачи |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010017465A DE102010017465A1 (de) | 2010-06-18 | 2010-06-18 | Messumformer mit zwei Übertragungskanälen |
| DE102010017465.3 | 2010-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2011157832A2 true WO2011157832A2 (de) | 2011-12-22 |
| WO2011157832A3 WO2011157832A3 (de) | 2012-08-23 |
Family
ID=44629876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2011/060139 Ceased WO2011157832A2 (de) | 2010-06-18 | 2011-06-17 | Messumformer mit zwei übertragungskanälen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9506810B2 (de) |
| EP (1) | EP2583070B1 (de) |
| CN (1) | CN102947684B (de) |
| DE (1) | DE102010017465A1 (de) |
| RU (1) | RU2552594C2 (de) |
| WO (1) | WO2011157832A2 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013014876B3 (de) * | 2013-09-06 | 2014-12-11 | Hottinger Baldwin Messtechnik Gmbh | Messverstärker mit Hintergrundjustierung und Verfahren dafür |
| CN103487631B (zh) * | 2013-10-10 | 2016-05-11 | 重庆邮电大学 | 一种调制解调型电流传感器 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1316498A (en) | 1970-05-26 | 1973-05-09 | Ultra Electronics Ltd | Temperature compensation arrangements |
| SU522407A1 (ru) * | 1975-04-07 | 1976-07-25 | Предприятие П/Я Г-4725 | Ультразвуковой резонансный толщиномер |
| US5390153A (en) * | 1977-12-05 | 1995-02-14 | Scherbatskoy; Serge A. | Measuring while drilling employing cascaded transmission systems |
| AT380340B (de) | 1979-09-07 | 1986-05-12 | Goerz Electro Gmbh | Linearisierungsschaltung |
| SU1366978A1 (ru) | 1986-07-01 | 1988-01-15 | Смоленское Специальное Конструкторско-Технологическое Бюро Систем Программного Управления | Устройство дл автоматизированного контрол источников питани |
| DE9211664U1 (de) | 1991-11-18 | 1992-12-10 | Gepa GmbH, 8000 München | Analoger Thermoelement-Meßverstärker mit digitaler Linearisierung |
| US5705978A (en) * | 1995-09-29 | 1998-01-06 | Rosemount Inc. | Process control transmitter |
| DE19652988C2 (de) * | 1996-12-19 | 1999-09-09 | Helag Electronic Gmbh | Winkelsensor |
| DE10216379A1 (de) | 2002-04-12 | 2003-10-30 | Conducta Endress & Hauser | Messeinrichtung für die Flüssigkeits-und/oder Gasanalyse |
| DE10223767B4 (de) | 2002-05-28 | 2004-10-21 | Infineon Technologies Ag | Schaltungsanordnung zum Verarbeiten eines Signals eines Sensors |
| DE102004026271B3 (de) | 2004-05-28 | 2005-12-01 | Holimed Privatinstitut für holistische Medizinsysteme GmbH | Kleinstsignalverstärkereinrichtung |
| JP5274551B2 (ja) | 2008-05-09 | 2013-08-28 | 株式会社アドバンテスト | デジタル変調信号の試験装置および試験方法 |
-
2010
- 2010-06-18 DE DE102010017465A patent/DE102010017465A1/de not_active Withdrawn
-
2011
- 2011-06-17 CN CN201180030171.3A patent/CN102947684B/zh not_active Expired - Fee Related
- 2011-06-17 EP EP11741135.5A patent/EP2583070B1/de not_active Not-in-force
- 2011-06-17 US US13/805,316 patent/US9506810B2/en not_active Expired - Fee Related
- 2011-06-17 RU RU2012153372/28A patent/RU2552594C2/ru active
- 2011-06-17 WO PCT/EP2011/060139 patent/WO2011157832A2/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| None |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102947684A (zh) | 2013-02-27 |
| EP2583070A2 (de) | 2013-04-24 |
| WO2011157832A3 (de) | 2012-08-23 |
| EP2583070B1 (de) | 2016-01-20 |
| US20140222365A1 (en) | 2014-08-07 |
| CN102947684B (zh) | 2015-07-22 |
| RU2552594C2 (ru) | 2015-06-10 |
| US9506810B2 (en) | 2016-11-29 |
| RU2012153372A (ru) | 2014-06-20 |
| DE102010017465A1 (de) | 2011-12-22 |
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