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Differential test probe

A technology for testing probes and probes, which is applied in the direction of measuring electricity, measuring devices, and measuring electrical variables, etc. It can solve the problems of maintaining test probes, measurement errors, and damage to the equipment under test, so as to achieve the effect of ensuring high-precision measurement

Pending Publication Date: 2018-05-11
ROHDE & SCHWARZ GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the longitudinal axis of each probe tip is parallel to the two axes of rotation, which disadvantageously leads to the fact that for testing the user has to hold the test probe in a disadvantageous manner
Thus, due to the tense hand position, slipping out from the measuring point is caused, which leads to measurement errors or even damage to the device under test due to an accidental short circuit caused by the probe tip

Method used

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Examples

Experimental program
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Embodiment Construction

[0029] refer to figure 1 , shows an embodiment of a differential test probe 100 according to the present invention in a three-dimensional view.

[0030] The differential test probe 100 includes a first probe tip 1a and a second probe tip 1b. Between the first probe tip 1a and the first needle body 2a, a first discrete resistor, preferably a surface mount device (SMD) resistor, is mounted, since this arrangement is partially covered by the first isolation cap 5a, it cannot from figure 1 see the first discrete resistor in .

[0031] In a similar manner, between the second probe tip 1b and the second needle body 2b, a second discrete resistor, preferably an SMD resistor, is mounted, wherein this arrangement is covered by a second isolation cap 5b, resulting in the same inaccessibility from figure 1 See this second discrete resistor in .

[0032] In addition, the differential test probe 100 includes a first probe sleeve 3a supporting the first needle body 2a in a longitudinall...

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PUM

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Abstract

The present invention relates to a differential test probe, in particular to a high bandwidth differential test probe for measuring a device under test. The test probe 100 comprises a first probe tip1a prejudicially arranged at a first coaxial connector 4a relative to a first rotational axis, and a second probe tip 1b prejudicially arranged at a second coaxial connector 4b relative to a second rotational axis. For adjusting the distance between the first probe tip 1a and the second probe tip 1b, the first coaxial connector 4a is rotatable with respect to the first rotational axis and the second coaxial connector 4b is rotatable with respect to the second rotational axis. Additionally, a tilt angle between the first probe tip 1a and a plane comprising both the first and second rotational axes, or a tilt angle between the second probe tip 1b and the plane, is not equal to zero.

Description

technical field [0001] The invention relates to a differential test probe, in particular to a high-bandwidth differential test probe for detecting a device under test. Background technique [0002] Typically, during a period when the number of devices including RF parts is increasing, there is an increasing demand for high bandwidth differential test probes because not only are RF parts difficult to access for testing, but these RF parts provide differential signals with very high bandwidth. demand, this high bandwidth differential test probe allows high precision and the most comfortable measurements even at difficult to access test points. [0003] WO 2013 / 124002 A1 discloses an adapter for a differential signal measuring scanning head, which adapter consists of two electrically conductive measuring contact elements, each for detecting a partial signal of a differential signal, the two electrically conductive measuring contact elements Each of is arranged eccentrically wi...

Claims

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Application Information

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IPC IPC(8): G01R1/073
CPCG01R1/07364G01R1/06722G01R1/06772
Inventor 亚历山大·库恩泽斯蒂芬·克泽尔
Owner ROHDE & SCHWARZ GMBH & CO KG