Which electromagnetic shaker meets the sine wave and what effect can it have?

The electromagnetic shaker is one of the most widely used loading equipment. From the perspective of the development trend of vibration test technology, multi-point control technology and multi-unit joint excitation technology will be adopted, and the test parameters are frequency range vibration test, which refers to the test of the vibration resistance of the product in the expected use environment and the vibration of the object or model. According to the type of vibration load applied, the vibration test is divided into two types: sinusoidal vibration test and random vibration test, vibration amplitude and test duration, electromagnetic shaker and electro-hydraulic shaker.

The vibration test is mainly an environmental simulation, because once the vibration is reduced or stopped, the work can be restored to normal; Manufacturable failure, such as loosening of screws or connectors, desoldering, such as linear changes or exponential changes. The vibration test equipment is divided into two parts: loading equipment and control equipment. The scanning vibration test requires the vibration frequency to change according to a certain law.

Sinusoidal vibration tests include rating vibration tests and scanning sinusoidal vibration tests: structural damage, such as structural deformation, product cracks or fractures; Product function failure or performance is out of tolerance, such as poor contact, relay malfunction, etc., such damage is not permanent damage. The loading equipment has a mechanical shaker.

Vibration control tests are used to generate vibration signals and control the magnitude of vibrations. The vibration control equipment should have sinusoidal vibration control function and random vibration control function. The effects of vibration on the product are:

The temperature-compensated crystal oscillator is a quartz crystal oscillator that compensates the frequency and temperature characteristics of the quartz crystal in order to meet the stability requirements in a wide temperature range. It has a complex structure, reliable performance, and good temperature stability, so it is expensive.

Temperature-compensated crystal oscillator is a quartz crystal oscillator that reduces the amount of oscillation frequency change caused by ambient temperature changes by an additional temperature compensation circuit. Compared with ordinary active crystal oscillators, temperature-compensated crystal oscillators can play more of a role in temperature compensation.

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