Patent ID: 8285520
Filing Date: 2012-10-09
Classification: G01H

Abstract:
1. Data collector and analyser hand held device capable of collecting and analysing AC analog signals obtained by both converting pressure waves in the ultrasonic or in the non-ultrasonic vibration bandwidths into such signals by an AC transducer either internal and comprised in the device or external and connected to said device, comprising: a conditioning circuit comprising a transducer identification circuit arranged for downloading a characteristic of an external transducer and at least a first amplifier, arranged for conditioning an AC analog signal at a desired amplitude, a first analog to digital converter arranged for receiving and sampling the conditioned AC analog signal and connected to the said first amplifier, a digital signal processing unit arranged for processing a digital signal to produce desired digital data, a central processing unit connected to the digital signal processing unit and to the conditioning circuit for controlling their respective operations, a user interface connected to the central processing unit and comprising user input and output means, wherein the first amplifier of the conditioning circuit is a multistage programmable amplifier arranged for enabling the adjustment of its gain between 0 and a predetermined value by the central processing unit