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Measuring instrument with phase sequence test function

A measuring instrument and phase sequence detection technology, applied in the field of measuring instruments, can solve problems such as inconvenience in testing, and achieve the effects of convenient testing, simple testing process, and easy operation.

Pending Publication Date: 2019-12-20
东莞市华博精测仪表科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This application provides a measuring instrument with phase sequence testing function, aiming to solve the problem of inconvenient testing in traditional three-phase power supply phase sequence measuring instruments

Method used

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  • Measuring instrument with phase sequence test function
  • Measuring instrument with phase sequence test function
  • Measuring instrument with phase sequence test function

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Embodiment Construction

[0023] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0024] see figure 1 and figure 2 , the embodiment of the present application provides a measuring instrument with a phase sequence testing function, and the instrument may be a multimeter or a clamp meter. The measuring instrument includes a host 100 and a contact detection probe 200 connected to the host 100. The host 100 includes a housing 110, a display screen 120 installed on the surface of the housing 110, a key module 130 for inputting operation instructions, and a button module 130 arranged on the housing. The control circuit board 140 in 110 is provided with a p...

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Abstract

The invention discloses a measuring instrument with a phase sequence test function. According to the measuring instrument, only one contact detection probe is needed to detect a three-phase power source sequentially to obtain detection signals, a phase sequence detection circuit processes the detection signals to obtain waveforms containing phase sequence information of all phases and inputs the waveforms into a main control chip, the main control chip integrates the three detected waveforms, and then a phase sequence of the three-phase power source can be obtained. The detection process is simple, three detection heads are used for detecting the three-phase power source simultaneously, more convenience is brought to operation by use of one detection head, and testing is convenient.

Description

technical field [0001] The application belongs to the field of measuring instruments, in particular to a measuring instrument with a phase sequence testing function. Background technique [0002] For the three-phase power measuring instruments currently on the market, it is more complicated to detect the phase sequence of the three-phase power supply. For example, the first type is that the three-phase power line corresponding to the clips must be three, and the second type is that the three test leads must be in contact with each other. When it comes to the three-phase power line, the third traditional multimeter test method is more complicated. Therefore, the traditional three-phase power phase sequence measuring instrument has the problem of inconvenient testing. Contents of the invention [0003] The application provides a measuring instrument with a phase sequence testing function, which aims to solve the problem of inconvenient testing in the traditional three-phase ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/18G01R1/04G01R1/30
CPCG01R29/18G01R1/0416G01R1/30
Inventor 杨晓峰李发友
Owner 东莞市华博精测仪表科技有限公司