Interferometer System

Heideman R.G., Lambeck P.V., Remote opto-chemical sensing with extreme sensitivity design, fabrication and performance of a pigtailed integrated optical phase-modulated Mach-Zehnder interferometer system, Sens, and Actuat. B 1999 61 1 GO-127. 

Fig 1. Laser Interferometer System (The velocity of the reflecting surface is re ated to the number of fringes observed by the photomultiplier)... 

Worthy of speoial mention is the use of laser for phonon detection, as in Brillouin speotrosoopy which is especially suitable for deteoting surface acoustic waves (SAWs). Generalized SAWs can be used to obtain Brillouin speotra with a 5-pass Fabry-Perot interferometer [29] on the other hand, pseudo-SAWs, which are weaker than the previous ones, require a tandem (3 -r 3)-pass Fabry-Perot interferometer system [30]. 

The overall schematic of the zero creep/laser interferometer system is shown in Figure 2. The system consists of the reactor in which the sample and reference mirrors are located, the interferometer, and the data collection system. The... 

The zero creep/laser interferometer system was evaluated using A1 foils [0.002 cm thick, 1.905 cm long]. No thickness tolerance was furnished by the manufacturer, however, no discernible variations were observed using a micrometer accurate to 0.1 /im. The foils were washed in acetone and isopropyl alcohol before being mounted in the reactor. The reactor was evacuated before the sample was heated to temperature. The operating vacuum was 7 10 atm at temperature. Typical runs were from 3-4 days in length, and data was collected every 5 seconds. 

The first F TIR instruments used three different interferometer systems. Briefly, describ how it has been possiltle to simplify the optical systems in more contemporary instruments. 

Modem displacement measuring interferometer systems (Badami and de Groot 2013) rarely rely on fringe counting. Generally,... 

Several control routines to compensate for uncorrected positioning errors are available. Machine errors are measured with high-precision devices, such as a laser interferometer system. This information is used by the control system to correct known errors. Typical positioning error compensation routines can manage only a limited number of compensation values, which must be... 

That is, in a fixed time an interferometer system will produce a spectrum with a signal-to-noise ratio greater than that of a dispersive system by the square root of the number of spectral elements. 

Using the interference microscope the object contrast does not depend on diffraction by the specimen hut is produced hy a double-heam interferometer system huilt within a double-microscope. The object modifies the phase relationship between the two mutually interfering waves by an amount depending on its optical thickness and refracting index. 

FIGURE 2. Schematic of quadrature interferometer system used to measure the time-dependent electron density. 

Dynamic IR linear dichroism (DIRLD) studies have been made using a rapid-scan interferometer system. For dynamic strain frequencies achievable are between 0.1 Hz and 10 kHz step-scan interferometers are useful. 

Principle of an interferometer system for measuring the elastic after-... 

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