impedance meter

impedance meter

[im′pēd·əns ‚mēd·ər]
References in periodicals archive ?
The Bode 100 is not only a state-of-the-art vector network analyzer--it also works as a frequency response analyzer, impedance meter, gain and phase meter, and sine-wave generator.
STs new power amplifiers combine superior audio quality and increased energy efficiency, as well as the unique real-time measurement of speaker impedance via the new Digital Impedance Meter (FDA801B), which represents a quantum leap in automotive diagnostics compared to any other audio amplifier.
115dB Signal to Noise Ratio (SNR); 110dB dynamic range, Simplified digital input eliminates external DAC (Digital to Analog Converter) and external decoupling capacitor, thereby avoiding potential DC-offset problems, More than 40% power saving compared to standard class-D amplifiers, Digital Impedance Meter (DIM, in FDA801B) automatically recognizes magnitude and phase of the connected speaker and communicates it by digital bus (I2C), Internal 24-bit DAC conversion and very low noise in line-driver and amplifier modes ensure superior audio performance, On-demand advanced diagnostics allows each channel to independently perform AC or DC diagnostics with configurable parameters, Ability to drive loads down to 1 ohm gives designers complete flexibility to specify preferred speakers.
Bruel & Kjaer's Impedance Meter System provides aerospace engineers with a user-friendly system, suitable for carrying out research and production quality control impedance measurements, up to 150 dB SPL on engine nacelle liners.
The Portable Impedance Meter system lends itself well to the measurement of acoustic properties of aircraft interiors and trim materials.
In his office, he uses a bioelectrical impedance meter to measure skeletal muscle versus fat tissue mass, from which calculations can be made for the number of calories per day required to reduce weight in a certain period of time.
Such equipment includes a lab-quality digital RCL bridge, vector impedance meter, network analyzer, etc.
Also, an AC impedance meter can be affected by high-frequency noise.