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CN-116793409-B - System for operating a physical measurement chain

CN116793409BCN 116793409 BCN116793409 BCN 116793409BCN-116793409-B

Abstract

The invention relates to a system for operating a physical measuring chain having a plurality of physical measuring elements at a measuring location, the physical measuring elements comprising at least one physical sensor, at least one physical transmission device and at least one physical analysis unit, wherein an identification code is detected from each physical measuring element, wherein a data network transmits the detected identification code to a data processing unit remote from the measuring location, wherein the data processing unit has at least one piece of software and measuring element data, wherein the piece of software reads the measuring element data for the transmitted identification code and generates therefrom a digital measuring chain having at least one digital sensor, at least one digital transmission device and at least one digital analysis unit, and wherein the data network transmits the digital measuring chain to a computer unit located at the measuring location.

Inventors

  • T wood hhohman
  • M. Steely
  • J. Henzick

Assignees

  • 基斯特勒控股公司

Dates

Publication Date
20260508
Application Date
20230317
Priority Date
20220321

Claims (15)

  1. 1. A system (100) for operating a physical measuring chain (10), the physical measuring chain (10) being designed to measure a physical measuring variable at a measuring location (1), the physical measuring chain (10) having a plurality of physical measuring elements (11, 12, 13), the physical measuring elements (11, 12, 13) being causally related to one another, the physical measuring elements (11, 12, 13) comprising at least one physical sensor (11), at least one physical transmission device (12) and at least one physical analysis unit (13), wherein each physical measuring element (11, 12, 13) has an identifier (11) ,12 ,13 ) The identifier having an identification code (11 ',12',13 ') stored therein; wherein the system (100) has at least one identification device (110), the identification device (110) being arranged at the measuring location (1) and being designed to detect, from each physical measuring element (11, 12, 13), a data stored in the identifier (11) ,12 ,13 ) Is a combination of the identification codes (11 ',12',13 '); Wherein the system (100) has at least one data processing unit (120), the data processing unit (120) being arranged at a data processing location (2) remote from the measurement location; Wherein the system (100) has a data network (20), and the data network (20) transmits the detected identification code (11 ',12',13 ') to the data processing unit (120); Wherein the data processing unit (120) comprises at least one data processor (121) with at least one software (122) and at least one data memory (123) with measurement element data (124); It is characterized in that the method comprises the steps of, The software (122) is designed to read measurement element data (124) from the data memory (123) for the transmitted identification code (11 ',12',13 ') and to generate a digital measurement chain (310) using the read measurement element data (124); The measurement element data is product specific data of at least one manufacturer of the physical measurement element with respect to the physical measurement element manufactured thereby; The digital measuring chain (310) has a plurality of digital measuring elements (311, 312, 313), the digital measuring elements (311, 312, 313) comprising at least one digital sensor (311), at least one digital transmission device (312) and at least one digital analysis unit (313), and The system (100) has at least one computer unit (130) which is arranged at the measurement location (1) and the data network (20) transmits the digital measurement chain (310) to the computer unit (130).
  2. 2. The system (100) of claim 1, wherein, Each physical measuring element (11, 12, 13) is a TEDS as identifier (11) ,12 ,13 ); Identification means (110) of each physical measuring element (11, 12, 13) automatically detect an identification code (11 ',12',13 ') stored in said TEDS; -the data network (20) automatically transmitting the detected identification code (11 ',12',13 ') to the data processing unit (120); The software (122) is designed to automatically read measurement element data (124) from the data memory (123) for the transmitted TEDS and to automatically generate a digital measurement chain (310) using the read measurement element data (124), and The data network (20) automatically transmits the digital measurement chain (310) to the computer unit (130).
  3. 3. The system (100) according to claim 1 or 2, wherein, The computer unit (130) has at least one computer data processor (131) with at least one computer software (132) and at least one computer input device (135); -at least one operating point (137) is inputtable by means of said computer input means (135); The computer software (132) is designed to automatically extract at least one configuration parameter (139) from the transmitted digital measurement chain (310) for the entered operating point (137).
  4. 4. A system (100) according to claim 3, wherein the operating point (137) comprises at least one of the following data elements: -the operating point (137) is in a range of values between a minimum operating point (137) and a maximum operating point (137); -the frequency range of the operating point (137) between the slowest operating point (137) and the fastest operating point (137); -the operating point (137) is in a temperature range between the coldest operating point (137) and the hottest operating point (137).
  5. 5. The system (100) of claim 4, wherein, The transmitted digital measuring chain (310) comprises measuring element data (124) relating to a measuring range of the physical sensor (11); The computer software (132) is designed to extract, as configuration parameters (139), from the measurement range of the physical sensor (11), an optimal measurement range (1392) of the physical sensor (11) for the entered numerical range of the operation point (137), within which optimal measurement range (1392) the maximum operation point (137) does not exceed the maximum scale reading of the optimal measurement range (1392), and within which optimal measurement range (1392) the physical sensor (11) still measures the minimum operation point (137) with the maximum possible resolution.
  6. 6. The system (100) of claim 5, wherein, The transmitted digital measuring chain (310) comprises measuring element data (124) of the physical sensor (11) for measuring the sensitivity of the physical measuring variable in different measuring ranges, and The computer software (132) is designed to extract from the sensitivity of the physical sensor (11) an optimal sensitivity (1398) of the physical sensor (11) within the optimal measurement range (1392) as a configuration parameter (139).
  7. 7. The system (100) of claim 5, wherein, The physical sensor (11) is a piezoelectric sensor; The transmitted digital measuring chain (310) comprises measuring element data (124) relating to the value of the preload of the piezoelectric sensor, and The computer software (132) is designed to extract, for the entered range of values of the operating point (137), an optimal value of the pretension of the piezo sensor from the measurement element data (124) on the value of the pretension of the piezo sensor, the sum of the optimal value of the pretension and the maximum operating point (137) being substantially equal to the maximum scale reading of the optimal measurement range (1392).
  8. 8. The system (100) of claim 7, wherein, The transmitted digital measuring chain (310) comprises measuring element data (124) of the physical sensor (11) for measuring the sensitivity of the physical measuring variable at different values of the pretension, and The computer software (132) is designed to extract an optimal sensitivity (1399) from the sensitivity of the physical sensor (11) as a configuration parameter (139) for an optimal value of the pretension of the physical sensor (11).
  9. 9. The system (100) of claim 5, wherein, The transmitted digital measuring chain (310) comprises measuring element data (124) of minimum measuring errors occurring in different measuring ranges of the physical sensor (11) and minimum measuring errors occurring by the physical analysis unit (13) for different physical measuring variables, and The computer software (132) is designed to extract an optimal minimum measurement error (1394) of the physical sensor (11) for the optimal measurement range (1392) and an optimal minimum measurement error (1400) of the physical analysis unit (13) for the operating point (137) as configuration parameters (139) from the minimum measurement errors of the physical sensor (11) present in different measurement ranges and the minimum measurement errors of the physical analysis unit (13) present for different physical measurement variables.
  10. 10. The system (100) of claim 4, wherein, The physical sensor (11) is a piezoelectric sensor; The transmitted digital measurement chain (310) comprises measurement element data (124) of a temperature coefficient related to the sensitivity of the piezoelectric sensor; the temperature coefficient of the sensitivity is a mathematical series expansion, and The computer software (132) is designed to extract, as configuration parameters (139), an optimal temperature coefficient (1395) of sensitivity of the piezoelectric sensor for a temperature range of an operating point (137) of the mathematical progression expansion entered, the optimal temperature coefficient (1395) of sensitivity being valid within the temperature range of the operating point (137).
  11. 11. The system (100) of claim 4, wherein, The transmitted digital measuring chain (310) comprises measuring element data (124) relating to the value of the hysteresis-containing linear error of the physical sensor (11), and The computer software (132) is designed to extract, for the entered range of values of the operating point (137), from the hysteresis-containing linear error values of the physical sensor (11), an optimum hysteresis-containing linear error value (1393) of the physical sensor (11), which optimum hysteresis-containing linear error value (1393) is located within the range of values of the operating point (137) for the highest possible resolution.
  12. 12. The system (100) of claim 4, wherein, The physical sensor (11) is a piezoelectric sensor; the physical analysis unit (13) has a charge amplifier in the piezoelectric sensor; The transmitted digital measurement chain (310) comprises measurement element data (124) relating to the time constant of the charge amplifier, and The computer software (132) is designed to extract, for the frequency range of the operating point (137) entered, from the time constants of the charge amplifier, as a configuration parameter (139), an optimal time constant of the charge amplifier, which forms a minimum charge drift for this frequency range of the operating point (137).
  13. 13. The system (100) of claim 4, wherein, The physical sensor (11) is a piezoelectric sensor; the physical analysis unit (13) has a charge amplifier in the piezoelectric sensor; The transmitted digital measurement chain (310) comprises measurement element data (124) relating to the time constant of the charge amplifier, and The computer software (132) is designed to extract, for the frequency range of the operating point (137) entered, an optimal time constant of the charge amplifier from the time constants of the charge amplifier as a configuration parameter (139), which optimal time constant does not form a lower cut-off frequency in this frequency range of the operating point (137).
  14. 14. The system (100) of claim 4, wherein, The physical sensor (11) is a piezoelectric sensor; the physical analysis unit (13) has a charge amplifier in the piezoelectric sensor; The physical transmission device (12) is a signal cable; The transmitted digital measurement chain (310) comprises measurement element data (124) concerning the value of the current supply to the charge amplifier via the signal cable, and The computer software (132) is designed to extract, for the frequency range of the operating point (137) entered, from the current supply value to the charge amplifier via the signal cable, an optimum value for the current supply to the charge amplifier via the signal cable, which optimum value does not form an upper cut-off frequency for the cable capacitance of the signal cable in the frequency range of the operating point (137), as a configuration parameter (139).
  15. 15. The system (100) according to any one of claims 3 to 14, wherein the computer software (132) is designed to automatically configure the physical measurement chain (10) with the configuration parameters (139).

Description

System for operating a physical measurement chain Technical Field The invention relates to a system for operating a physical measurement chain. Background WO2019105693A1 relates to a physical measuring chain for measuring a physical measuring variable. The physical measurement parameters may be force, weight, temperature, etc. The physical measuring chain comprises a plurality of physical measuring elements, such as physical sensors, physical transmission means and physical analysis units. For the purpose of illustrating the working principle of a physical measuring chain, a temperature measurement at the measuring location is described as an example. For this purpose, a physical sensor embodied as a thermocouple is arranged at the measuring location and the temperature is measured as a voltage. The voltage is transmitted as a measurement signal to the physical analysis unit by means of a physical transmission device embodied as a signal cable. The physical analysis unit electrically amplifies the measurement signal and shows it as a measured value on a display. The directly adjacent physical measuring elements of the physical measuring chain have a causal relationship with each other for the measurement of the physical measuring variable. Before measuring the physical measurement quantity, the physical measurement chain must be configured. The term "configuration" means a technical adaptation between physical measurement elements. Configuration parameters are used for this purpose. In this example, in order to continue the temperature measurement at the measurement location, the temperature is measured here with various types of thermocouples with different sensitivities. The measured voltages are different depending on the sensitivity. The signal cables may also have different lengths, which may result in different voltage drops of the measurement signal in the signal cable. Finally, the amplification of the measurement signal in the physical analysis unit must also be adapted to the sensitivity of the thermocouple used. The physical measuring chain is able to measure the physical measuring variables precisely only if the various configuration parameters of the physical measuring chain are technically matched to one another correctly. However, this technical correct configuration of the physical measurement chain involves time and material costs for the user of the physical measurement chain. This is because the user often stores technical files of the configuration parameters required for the individual physical measuring elements in a decentralized manner and is difficult to find. Furthermore, the user in many cases cannot understand the causal relationship between the physical measurement elements correctly, and therefore the influence of the configuration parameters. Finally, the configuration parameters must be read by the configuration software. If the user for this purpose manually enters configuration parameters via a keyboard, there is a risk of typing in errors. In summary, any erroneous configuration of the physical measurement chain will result in erroneous measurements of the physical measurement quantities. Disclosure of Invention The object of the invention is to assist a user of a physical measuring chain in the correct configuration of the physical measuring chain, so that the user can achieve the correct technical configuration of the physical measuring chain in little time and material costs, and the user does not have to take on the risk of incorrect configuration of the physical measuring chain. The aim of the application is achieved by the technical scheme of the application. The invention relates to a system for operating a physical measuring chain, which is designed to measure a physical measuring variable at a measuring location, said physical measuring chain having a plurality of physical measuring elements which are in causal relationship with one another, said physical measuring elements comprising at least one physical sensor, at least one physical transmission device and at least one physical analysis unit, wherein each physical measuring element has an identifier in which an identification code is stored, wherein the system has at least one identification device which is arranged at the measuring location and is designed to detect the identification code stored in the identifier from each physical measuring element, wherein the system has at least one data processing unit which is arranged at a data processing location remote from the measuring location, wherein the system has a data network which transmits the detected identification code to the data processing unit, wherein the data processing unit has at least one data processor with at least one software and at least one data memory with measuring element data, wherein the software is designed to read out the identification code for transmission from the data memory and to the measuring element with at least one digital