Single probe microwave power measuring device with display and method thereof

Abstract

The invention provides a single probe microwave power measuring device with a display; the single probe microwave power measuring device comprises a simulation circuit and a digit circuit; the simulation circuit comprises a power sensing circuit, a pre-stage amplification circuit, a rear stage amplification circuit and an analog to digital conversion circuit; the simulation circuit is used for sensing and modulating power signals, and carrying out analog-to-digital conversion; the digit circuit comprises a digit signal processor, a temperature detection circuit, an OLED display circuit, a power source management circuit, and a USB interface circuit; the digit circuit is used for calibrating and compensating power test data, controlling the whole machine, and managing the power source. The USB interface supply is realized, so the measuring device is compact in structure; the single probe can be held by hand, is light in weight, and the shape is similar to a normal power probe matched with a power measuring host; an OLED display is arranged on the housing, and the measuring result can be read through the machine body OLED display under the condition in which only +5 V DC power source is provided.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a microwave power measuring device, and also to a microwave power measuring method. Background technique [0002] At present, the measurement of microwave and millimeter wave continuous wave signal power generally adopts the form of power test host + multi-core cable + power probe. The existing microwave power measurement instrument architecture of host + cable + power probe, because the host needs to realize power conversion, Display, keys, various external interfaces and basic functions of the instrument occupy a large volume (generally: 330mm×220mm×100mm, probe: 40mm×40mm×125mm), and occupy a large cabinet space when building a test system. It requires 220V power supply and program-controlled interfaces such as GPIB, serial port or network port. The connection is cumbersome and generally limited to laboratory use, especially not suitable for on-site debugging, monitoring and p...

AI Technical Summary

Problems solved by technology

[0002] At present, the measurement of microwave and millimeter wave continuous wave signal power generally adopts the form of power test host + multi-core cable + power probe. The existing microwave power measurement instrument architecture of host + cable + power probe, because the host needs to realize power conversion, Display, keys, various external interfaces and basic functions of the instrument occupy a large volume (generally: 330mm×220mm×100mm, probe: 40mm×40mm×125mm), and occupy a large cabinet space when building a test system. It requires 220V power supply and program-controlled interfaces such as GPIB, serial port or network port. The connection is cumbersome and generally limited to laboratory use, especially not suitable for on-site debugging, monitoring and production line use; and when multiple adjacent power ports need to be connected During the test, multiple power meter hosts, cables and power probes need to be used at the same time, which takes up a lot of space, and the program control connection is more cumbersome and the cost is higher

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