Test fixture for low pass filter

A low-pass filter and test fixture technology, applied in instruments, measuring devices, measuring electrical variables, etc., can solve problems such as inability to easily complete device testing, error-prone testing processes, and inability to complete welding, and achieve convenient and fast loading, unloading and maintenance. , the effect of a wide range of tests and a simple structure

Pending Publication Date: 2017-01-25
GUIZHOU AEROSPACE INST OF MEASURING & TESTING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Passive low-pass filter (such as LFCN-320), its operating frequency is 320MHz, because it is a microwave device, the size is small, the method of directly welding the test line to the device is usually used for testing, and the welding cannot be completed when the size is small and It is especially easy to short-circu

Method used

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  • Test fixture for low pass filter
  • Test fixture for low pass filter
  • Test fixture for low pass filter

Examples

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Embodiment

[0018] Example: such as Figure 1-Figure 4 As shown, a low-pass filter test fixture includes a micrometer slide 2, an adapter seat 3, a circuit board 4, and a pressure spring clamp 5. The upper end surface of the adapter seat 3 is provided with a groove 12, and its lower end surface is fixedly connected On the micrometer slide 2, the micrometer slide 2 is fixed on the base 1 and can adjust the XY direction of the adapter seat 3, and the circuit board 4 and the positioning plate 9 are fixedly placed in the groove 12 from bottom to top, and the circuit The plate 4 is connected to the monitoring equipment through wires, and the pressure spring clamp 5 is fixedly connected to the slide plate 10. The slide plate 10 is connected to the rear side plate 7 through two damping shafts 13 and can move axially along the slide rail 13. The positioning plate 9 is set There is a limit slot 6 for placing the filter under test, and the pressing piece spring clamp 5 faces the limit slot 6 after ...

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PUM

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Abstract

The invention discloses a test fixture for a low pass filter. The test fixture comprises a micrometer sliding table, an adaptive base, a circuit board and a flat spring fixture, wherein a groove is arranged on an upper end face of the adaptive base; a lower end face of the adaptive base is fixedly connected with the micrometer sliding table; the micrometer sliding table is fixed on the base and is capable of adjusting X and Y directions of the adaptive base; the circuit board and a positioning plate are fixedly arranged in the groove from bottom to top; the circuit board is connected with a monitoring device through a wire; the flat spring fixture is fixedly connected with a slide plate; the slide plate is connected with a rear lateral plate through two damping shafts and is capable of moving along the axial direction of a slide rail; a limiting groove for accommodating a detected filter is arranged on the positioning plate; after downward moving, the flat spring fixture is directly faced to the limiting groove. Under the buffering function of the flat spring fixture, the test fixture provided by the invention can prevent the detected component from being damaged by hard pressing. The test fixture can be mounted in the manner of adopting the positioning plate for limiting the position of the detected component and pressing by the flat spring fixture, so that high test efficiency and test result precision can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of electronic component testing devices, and relates to a low-pass filter testing fixture. Background technique [0002] Passive low-pass filter (such as LFCN-320), its operating frequency is 320MHz, because it is a microwave device, the size is small, the method of directly welding the test line to the device is usually used for testing, and the welding cannot be completed when the size is small and It is especially easy to short-circuit. This test method has serious shortcomings. The properties of the device itself are destroyed during the welding process, and it is time-consuming and labor-intensive. The test process is prone to errors, and the device test cannot be easily completed at all. There is no corresponding fixture at present. carry out testing. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a low-pass filter test fixture, which can...

Claims

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Application Information

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IPC IPC(8): G01R1/04
CPCG01R1/0425
Inventor 袁帅
Owner GUIZHOU AEROSPACE INST OF MEASURING & TESTING TECH
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