The multichannel analyzer (MCA) is an important laboratory instrument which can measure distributions of input signals consisting of pulses. It operates in two different modes: pulse height analyzer (PHA) mode, and multichannel scaler (MCS) mode. In PHA mode, the input pulses are sorted into bins (channels) according to their amplitude, while in MCS mode they are sorted according to the time wh...

Signals in the terahertz range are mainly wireless, waveguide-bound or on-chip signals. To measure their spectral power, linewidth and harmonics, usually spectrum analyzers used. Here we present a photonic analyzer for signals frequency from 450 GHz to 1.05 THz with possibility extend its operation Therefore, photonically generated local oscillator is used downconvert signal under test within p...

Electrical measuring instruments related to spectrum analyzers allow you quickly obtain information about the distribution of energy electrical and electromagnetic signals in a certain frequency band. The range signal frequencies that can be measured by depends on specific instrument model. Extending analyzer increases its cost. But depending processing algorithm, with same also vary significan...

A method to identify and mitigate radio frequency interference (RFI) in microwave radiometry based on the use of a spectrum analyzer has been developed. This method has been tested with CAROLS L-band airborne radiometer data that are strongly corrupted by RFI. RFI is a major limiting factor in passive microwave remote sensing interpretation. Although the 1.400-1.427 GHz bandwidth is protected, ...

In a previous paper we described details of the construction of stabilized 670-nm diode lasers for use in undergraduate physics laboratories. We report here a series of experiments that can be performed using the 670-nm diode laser, a homemade scanning Fabry-Perot cavity, a helium-neon laser, a simple photodiode, and a few pieces of electronics hardware. The experiments include: 1) an introduct...

A method of measuring gamma-ray relative intensities was developed which used a germanium .bent-crystal spectrometer as a monochromator. The response function of a Nai detector to the essentially monoenergetic gamma rays, obtained from the diffracted beam of the spectrometer, was recorded in a multichannel analyzer. The composite spectrum due to all the gamma rays was then recorded in the analy...

Fast band power measurement technique used for measuring in wireless fidelity (Wi-Fi) devices. The difficulty during testing the is burst mode transmission takes longer time to measure. A test jig or specialized tool required costly, which allows continuous of measurement. delivered average by a Wi-Fi device depends upon data rate can also vary time. procedure proposed hereby developed using sp...

purpose: to compare intraocular pressure (iop) readings measured by the ocular response analyzer (ora) with those measured by the goldmann applanation tonometer (gat) in keratoconic eyes following penetrating keratoplasty (pkp) and to evaluate the influence of anatomical and biomechanical properties of the grafts on iop measurements. methods: this cross-sectional study was conducted on 45 kerat...

With the recent advancement of gigabit fiber communication and the photonic distribution of microwave signals, there is a growing need to characterize the high-speed optical signals found in such systems. This task is typically accomplished with a high-speed photodetector followed by an instrument such as a sampling oscilloscope, a radio frequency (RF) spectrum analyzer, or a vector network ana...