The amplitude of an object with high velocity of 20 kHz or higher frequency, such as an ultrasonic tipping machine and a bonding machine, can be measured. Based on the amplitude value and frequency analysis, the tipping quality and the equipment maintenance time can be determined.

As LV-1800 Laser Doppler Vibrometer has high spatial resolution, it can detect the amplitude of electronic components mounted on substrates in pin point when vibration testing. For example, you can see the status of parts in a case when overload is applied to the target with larger amplitude more than the specified acceleration owing to the variety of each part mass and substrate vibration mode.

The LV-1800 is the most suitable for measurement of thin film velocity. It can measure the velocity of thin films such as diaphragm of cell phone’s microphone, a corn paper of receiver and speaker, and a transparent film like a liquid crystal display film.

The LV-1800 does not detect transparent objects not located at the focal position. Using this characteristic, it can detect the vibration of an object inside a vacuum chamber or a constant temperature bath by irradiating laser through a glass or quarts.

The standard laser spot diameter of the LV-1800 is approx. φ20µm, and the micro spot diameter of approx. φ3µm can be achieved by mounting an objective lens. With this high spatial resolution, microstructures represented by MEMS, the behavior of small insects, and other objects that could not be detected with the conventional vibration detectors can now be detected.