Nano-Resolution Sensors for Environmental ... - Paroscientific, Inc.

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Nano-Resolution withRegression (FIR) Counting(FIR: Finite-Impulse-Response in Digital Signal Processing)Start-Stop MethodRegression Methodn Clock Counts8007006005004003002001000-100-1 0 1 2 3 4 5 6 7 8 9 10 11N Periodsn Clock Counts8007006005004003002001000-100-1 0 1 2 3 4 5 6 7 8 9 10 11N PeriodsStart-stop method: Slope between endpoints determines sensor period.Regression counting: Many sub-samples, slope is least-squares regression fit.Statistical improvement is √(N/6). Nano-resolution (parts-per-billion) is possible.Paroscientific, Inc.
Resolution Improvement with Nano-Counting1.0000Standard Deviation (Pa)0.10000.01000.0010Reciprocal Start-Stop Counting Technique0.0001Nano-Resolution With Advanced Counting Algorithms1.E+0 1.E+1 1.E+2 1.E+3 1.E+4 1.E+5 1.E+6 1.E+7 1.E+8 1.E+9Record Length (seconds)Paroscientific, Inc.Digiquartz ® Pressure Instrumentation
Page 1 and 2: Nano-Resolution Sensors forEnvironm
Page 3 and 4: NSF Instrumentation GoalsThe NSF "S
Page 5 and 6: Application Areas for Quartz Sensor
Page 7 and 8: Advantages of Quartz Resonant Senso
Page 9 and 10: Paroscientific, Inc.Double-Ended Tu
Page 11 and 12: Paroscientific, Inc.Wafer of Temper
Page 13 and 14: Paroscientific, Inc.Digiquartz ® B
Page 15 and 16: Reciprocal Start-Stop CountingPress
Page 17 and 18: Linearization and TemperatureCompen
Page 19: Nano-Resolution Counting Techniques
Page 23 and 24: Ambient Barometric Infrasound Spect
Page 25 and 26: Digiquartz Nano-Barometer Spectral
Page 27 and 28: 642Pa0-2-4-61950 2000 2050 2100 215
Page 29 and 30: Digiquartz Depth Sensor Noise Floor
Page 31 and 32: Tsunami Detection (Earthquake Gener
Page 33 and 34: Ocean Observatory Program Paroscien
Page 35 and 36: Paroscientific, Inc.Digiquartz ® P
Page 37 and 38: GPS MeteorologyGPS Determination of
Page 39 and 40: Atmospheric Noise MitigationLocal a
Page 41 and 42: Paroscientific, Inc.Atmospheric Tid
Page 43 and 44: Year-long Atmospheric Tides at Albu
Page 45 and 46: Paroscientific, Inc.
Page 47 and 48: Resonant Quartz Crystal Acceleromet
Page 49 and 50: Acceleration Sensing ResonatorsQuar
Page 51 and 52: Earthquake Nano-Resolution with3-g

Nano-Resolution Sensors for Environmental ... - Paroscientific, Inc.

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