Vibration analyzers perform spectral analysis on materials, machines or products, obtaining information such as frequency, speed and phase angle to determine an object’s failure modes. Vibration analyzers use contact transducers, or accelerometers, to retrieve data for analysis. Vibrometers, or laser doppler vibrometers (LDV), provide similar data to vibration analyzers, and are instrumental in determining the failure modes of large structures. A non-contact laser vibrometer may be preferred in areas where the test unit is lightweight and the accelerometer from a vibration analyzer adds mass that influences the results of the test. Vibration analyzers and vibrometers are ideal tools for measuring vibration characteristics and obtaining spectral data in applications like machinery maintenance, building construction, product quality, production or haptic analysis.