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Measuring device

A measuring device and a technology for measuring signals, applied in measuring devices, measuring electrical variables, measuring current/voltage, etc., can solve problems such as time-consuming, labor-intensive, costly, and expensive

Pending Publication Date: 2021-06-04
PHOENIX CONTACT GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the provision of said corresponding physical variables can be time-consuming, laborious and costly

Method used

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Examples

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Embodiment Construction

[0075] figure 1 Measuring device 100 is shown. Measuring device 100 has a measuring input 101 . In the disclosed embodiment, measurement input 101 includes six connections. In other embodiments, the measurement input 101 includes one or other number of connections. Through the six connections of the measuring input 101, three lines can be connected, each with current and voltage. In this way, the measuring device 100 can measure the three-phase power line, and the measuring device 100 can display the power of each phase of the three-phase line. A connector may include multiple sockets. In particular, the power connection for enabling current measurement may comprise two sockets.

[0076] The measurement device 100 is a measurement device for measuring electrical power and other values ​​derivable from measurement data, such as electrical energy. Physical values ​​(such as voltage) can also be displayed directly. In another exemplary embodiment, the measuring device 100 ...

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Abstract

The invention relates to a measuring device (100) for measuring a physical variable. The measuring device (100) has a converter (102), which is designed to convert an input variable present at a measurement input (101), into a measurement signal and to provide the same as an output variable. The measuring device (100) comprises a processing unit (104), which is designed to process the output variable of the converter (102); and a signal generator (107), which is designed to generate a test signal on the basis of a specification, which test signal corresponds to an output variable which corresponds to an input variable of the converter (102) corresponding to the specification. The processing unit (104) can be connected via a switching element (105) either to an output (103) of the converter (102) or to an output (109) of the signal generator (107). The invention further relates to a method for testing a measuring device (100).

Description

technical field [0001] The invention relates to a measuring device for measuring physical variables and a testing method for the measuring device. Background technique [0002] Measuring devices can be used to measure physical variables. For example, a measuring device may be used to measure power in a system such as a polyphase line system. [0003] Such measuring devices can output error messages when the measured physical variable meets predetermined conditions. For example, the measuring device can indicate when the voltage or current has dropped significantly or the frequency of the electrical signal has changed abnormally. [0004] When testing such measuring devices, sources are usually used which supply the corresponding physical variables. For example, when testing a measuring device capable of measuring current or voltage, a power supply source that provides both current and voltage is used. [0005] However, the provision of the corresponding physical variable...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/06G01R19/25G01R35/00G01R35/04
CPCG01R19/2509G01R19/2513G01R21/06G01R35/00G01R35/04G01R1/206G01R19/2516G01R19/252
Inventor 马丁·扬科夫斯基
Owner PHOENIX CONTACT GMBH & CO KG