A High-Precision Marine Ambient Noise Sound Pressure Monitoring System

2013 ◽  
Vol 321-324 ◽  
pp. 724-727
Author(s):  
Lei Li ◽  
Jun Li Liu ◽  
Cheng Xing Lv
Keyword(s):  
Monitoring System ◽  
High Precision ◽  
Ambient Noise ◽  
Sound Pressure ◽  
Measurement Accuracy ◽  
Dynamic Range ◽  
Low Frequency ◽  
Signal Modulation ◽  
Pressure Monitoring ◽  
Wide Dynamic Range

A high-precision marine ambient noise sound pressure monitoring system is developed based on the Michelson interference, a method of improving the measurement accuracy is presented by signal modulation and compensation. Experiments show that the monitoring system has a wide dynamic range and high accuracy especially in low-frequency.

A Low Frequency and High-Precision Microbarograph Monitoring System

2012 ◽  
Vol 605-607 ◽  
pp. 873-877
Author(s):  
Lei Li ◽  
Zhong Hai Zhou ◽  
Cheng Xing Lv ◽  
Bo Liu ◽  
He Chao Zang ◽  
...  
Keyword(s):  
Monitoring System ◽  
High Precision ◽  
Measurement Accuracy ◽  
Dynamic Range ◽  
Low Frequency ◽  
Type A ◽  
High Accuracy ◽  
Signal Modulation ◽  
Frequency Signal ◽  
Wide Dynamic Range

A low frequency and high-precision microbarograph monitoring system is developed based on the Michelson interference of unequal-arm type, a method of signal modulation and compensation is presented, it improves the system’s anti-jamming capability and measurement accuracy. Experiments show that the monitoring system has a high accuracy and a wide dynamic range, especially for monitoring low-frequency signal.

scholarly journals Novel Electrochemiluminescent Assays for Drug Discovery

2000 ◽  
Vol 5 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Maura C. Kibbey ◽  
David MacAllan ◽  
James W. Karaszkiewicz
Keyword(s):  
Drug Discovery ◽  
High Precision ◽  
High Throughput ◽  
High Performance ◽  
Dynamic Range ◽  
Wide Dynamic Range ◽  
Receptor Ligand ◽  
Enzymatic Assays ◽  
Detection Systems ◽  
Protein Assays

IGEN's ORIGEN® technology, which is based on electrochemiluminescence, has been adopted by a number of research and bioanalytical laboratories who have recognized its exquisite sensitivity, high precision, wide dynamic range, and flexibility in formatting a wide variety of applications. IGEN's M-SERIES™ marks the introduction of the second generation of detection systems employing the ORIGEN technology specifically repackaged to address the needs of the high throughput laboratories involved in drug discovery. Assays are formatted without wash steps. Users realize the high performance of a heterogeneous technology with the convenience of a homogeneous format. The M-SERIES platform can address enzymatic assays (kinases, proteases, helicases, etc.), receptor-ligand or protein-protein assays, immunoassays, quantitation of nucleic acids, as well as other applications. Recent assay formats will be explored in detail.

scholarly journals A precision low-frequency Analog-to-Digital converter for advanced systems of technical diagnostics and nondestructive testing

2020 ◽  
pp. 6-16
Author(s):  
N. A. Lukin ◽  
◽  
L. S. Rubin ◽  
Keyword(s):  
Dynamic Range ◽  
Low Frequency ◽  
High Sensitivity ◽  
Technical Diagnostics ◽  
Digital Conversion ◽  
Wide Dynamic Range ◽  
Voltage Level ◽  
Analog To Digital ◽  
Analog To Digital Conversion ◽  
Nonlinear Analog

The main results of the development of a precision low-current meter based on a nonlinear ADC are presented. It is shown that the application of the method of nonlinear analog-to-digital conversion and a controlled voltage level at the non-inverting input of an integrating operational amplifier allows both high sensitivity and a wide dynamic range with a small spread of output codes. The use of the laboratory sample of the meter for cyclic tensile testing of steel specimens is described.

Low Frequency Electrochemical Accelerometer with Low Noise Based on MEMS

2012 ◽  
Vol 503 ◽  
pp. 75-80 ◽  
Author(s):  
Wen Tao He ◽  
De Yong Chen ◽  
Guang Bei Li ◽  
Jun Bo Wang
Keyword(s):  
Early Warning ◽  
Dynamic Range ◽  
Low Frequency ◽  
Inertial Mass ◽  
Low Noise ◽  
Fabrication Process ◽  
Frequency Range ◽  
Wide Dynamic Range ◽  
Geological Disaster ◽  
Excellent Property

Petroleum prospecting and early warning of some geological disaster increasingly depend on the accelerometers which can detect vibrate of frequency below 1Hz, but it’s embarrassing that accelerometers based on Si or SiO2 structure make an awful performance in this frequency range. Electrochemical accelerometers were developed in 1990s. With fluidics to be inertial mass, electrochemical accelerometer not only show an excellent property in low frequency, but also has a wide dynamic range. However, traditional fabrication process of electrochemical accelerometer is rather complex and can’t eliminate the noise due to the inconsistency and asymmetry of electrodes. To solve these problems, a scheme based on MEMS is proposed here, including design, fabrication and package. Properties of electrochemical accelerometer (EAM) are tested in two conditions at last.

Compact and high-precision range finder with wide dynamic range and its application

1992 ◽  
Vol 41 (1) ◽  
pp. 40-44 ◽  
Author(s):  
S. Shinohara ◽  
H. Yoshida ◽  
H. Ikeda ◽  
K. Nishide ◽  
M. Sumi
Keyword(s):  
High Precision ◽  
Dynamic Range ◽  
Range Finder ◽  
Wide Dynamic Range
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