Haier Group Corporation is a Chinese multinational company that designs, develops, manufactures and sells home appliances and consumer electronics: from refrigerators and microwave ovens to mobile phones and computers.
Haier Group transports the products and parts over long distances. This is the reason why the company needs to test the goods for Sine and Random vibrations to ensure they will not be damaged during shipment.
The company has been struggling to find a system with a stable control line that would manage the tests at very low frequencies (0.1 - 1 Hz).
Haier Group mainly uses Sine and Random test to ensure that the product survives the shipping conditions.
RULA controllers have a wide dynamic range, powerful anti-noise filters, and a built-in synchronous detector function in Sine test — the combination of features that ensures the stability of tests at low frequencies.
High frequency resolution — from 0.1 up to 52,500 Hz — allows the company to easily setup Random test in the desired frequency range.