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Measuring system including accessories with internal calibration signal

A signal and compensation signal technology, applied in the field of electronic test and measurement instruments and their accessories, can solve problems such as calibration or compensation output signal specifications and capacity limitations

Active Publication Date: 2019-12-10
TEKTRONIX INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Furthermore, the ability to accurately and reliably calibrate or compensate the accessories used in the measurement system is limited by the specification and ability to calibrate or compensate the output signal

Method used

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  • Measuring system including accessories with internal calibration signal
  • Measuring system including accessories with internal calibration signal
  • Measuring system including accessories with internal calibration signal

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Embodiment Construction

[0010] In the drawings, which are not necessarily to scale, like or corresponding elements of the disclosed systems and methods are labeled with the same reference numerals.

[0011] There are times when accessories attached to the DUT cannot be easily removed in order to calibrate or compensate the accessories. For example, an accessory may be permanently mounted in a test fixture, soldered to the DUT, mounted in a difficult to access or remote location, in an environmental chamber, or in a hazardous location, such as a location with high voltages. Thus, in situations such as these, it is important to be able to calibrate or compensate the subassembly without removing the subassembly from the DUT.

[0012] Embodiments of the disclosed technology include a test and measurement system that includes a host computer 100 , such as a test and measurement instrument, a controller 102 , an accessory head 104 , and a DUT 106 . An example of such a system is in figure 1 shown in . ...

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PUM

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Abstract

An accessory (104) for use with a test and measurement instrument (100). The accessory includes an input (114, 116) to receive a signal from a device under test (106), a calibration unit (108) configured to apply a calibration or compensation signal internal to the accessory, and an output (120) to output the signal from the device under test or the calibration or compensation signal to a test and measurement instrument.

Description

technical field [0001] The present disclosure relates to the field of electronic test and measurement instruments and their accessories. The disclosed technique specifically addresses the problem of calibrating accessories for electronic instruments. Background technique [0002] Traditionally, calibrating or compensating an accessory (eg, a probe) in a test and measurement system involves removing the accessory from the device under test (DUT) and connecting the accessory to a calibration or compensation stimulus. Conventionally, a test and measurement system includes a host computer, a controller, and a device under test. The accessory is attached to the device under test and measures the signal from the device under test and sends it back to the host. However, in order to calibrate an accessory, the accessory has to be removed from the device under test and attached to a calibration / compensation stimulus, typically from the host. That is, the calibration or compensatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D3/00G01D18/00
CPCG01R31/3191G01R35/005
Inventor M.J.门德R.A.布曼
Owner TEKTRONIX INC