Experimental research on structure-borne noise at pulse-width-modulation excitation

2018 ◽  
Vol 137 ◽  
pp. 33-39 ◽  
Author(s):  
Janez Luznar ◽  
Janko Slavič ◽  
Miha Boltežar
Keyword(s):  
Experimental Research ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Modulation Excitation

scholarly journals Experimental research on the influence of the pulse injector control parameters on its flow rate

2015 ◽  
Vol 163 (4) ◽  
pp. 15-20
Author(s):  
Jacek CZARNIGOWSKI
Keyword(s):  
Experimental Research ◽  
Mass Flow ◽  
Flow Rate ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Control Signal ◽  
Control Parameters ◽  
Pulse Modulation ◽  
Fuel Mass ◽  
The Impact

The paper presents the results of the impact of the control parameters on the fuel mass flow from the injector. The control parameters examined in the paper were: frequency and pulse width modulation of the modulated control signal (the second part of the injector control signal). The analysis covers 6 injector types of different design of the valve element and the coil. The experiments have shown that the frequency of the signal does not affect the injector performance, contrary to pulse modulation affecting the injector performance significantly.

The 1-Bit Instrument

2020 ◽  
Vol 1 (1) ◽  
pp. 44-74
Author(s):  
Blake Troise
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Interleaving Techniques ◽  
Sonic Environment

The 1-bit sonic environment (perhaps most famously musically employed on the ZX Spectrum) is defined by extreme limitation. Yet, belying these restrictions, there is a surprisingly expressive instrumental versatility. This article explores the theory behind the primary, idiosyncratically 1-bit techniques available to the composer-programmer, those that are essential when designing “instruments” in 1-bit environments. These techniques include pulse width modulation for timbral manipulation and means of generating virtual polyphony in software, such as the pin pulse and pulse interleaving techniques. These methodologies are considered in respect to their compositional implications and instrumental applications.

An Equivalent Circuit Model for Vertical Comb Drive MEMS Optical Scanner Controlled by Pulse Width Modulation

2012 ◽  
Vol 132 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Satoshi Maruyama ◽  
Muneki Nakada ◽  
Makoto Mita ◽  
Takuya Takahashi ◽  
Hiroyuki Fujita ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Comb Drive ◽  
Optical Scanner
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