Edit |Circumferential instruments
Regarding the requirements of vibration test, there are many reference standards at home and abroad, and high-frequency electrodynamic shaker is needed in vibration test. In particular, some sinusoidal vibration or random vibration tests, for example, there are several standards for vibration tests in China
gb/t 2423.10-2019 Environmental Test Part 2: Test Method Test FC: Vibration (sinusoidal).
gb/t 2423.48-2018 Environmental Tests Part 2: Test Methods Test FF: Vibration Time History and Sinusoidal Beat Method.
gb/t 2423.58-2008 Environmental Test for Electrical and Electronic Products Part 2-80: Test Method Test Fi: Vibration Mixed Mode.
Let's take a brief look at the vibration test method.
Vibration Test Method:
Test Equipment:Circumferential instrument High-frequency electrodynamic vibrating table.
Test content:Sinusoidal vibration test.
Reference Standards:gb/t 2423.10-2019
Frequency Requirements:
The lower frequency is .
The online frequency is:
Test Requirements:
Endurance tests are performed with one of the following two frequencies:
a) the hazard frequency derived from the given vibration response check, using one of the following methods:
1) Fixed frequency.
Center resonance frequency.
The applied frequency should always be kept at the actual hazard frequency.
2) Approximately fixed frequency.
Scan in a limited frequency range.
If the actual danger frequency is not very clear, such as when there is flutter or when multiple independent samples are tested at the same time, it is more convenient to use the danger frequency of 08 times to 1Sweep in 2x frequency range. This method can also be used in the case of nonlinear resonance.
b) the predetermined frequency specified in the relevant specification.
The test should be carried out according to the amplitude and duration provided by the relevant specifications.
In the specific test, the high-frequency electrodynamic shaker needs to be determined according to the test standards of different products, and the specific content can refer to the test methods of related products, such as productsVibration test test questionsYesVisit the official website of "Huanyi Instrument"., consult the relevant technical staff.