Electrical Calibration of Spring-Mass MEMS Capacitive Accelerometers

2013 ◽  
Author(s):  
Lingfei Deng ◽  
Vinay Kundur ◽  
Naveen Sai Jangala Naga ◽  
Muhlis Kenan Ozel ◽  
Ender Yilmaz ◽  
...  
Keyword(s):  
Electrical Calibration

A Strain Gauge Plethysmograph with Electrical Calibration

1970 ◽  
Vol 25 (4) ◽  
pp. 413-418 ◽  
Author(s):  
T. Hallböök ◽  
B. Mansson ◽  
R. Nilsén
Keyword(s):  
Strain Gauge ◽  
Electrical Calibration

Test bench development dedicated to microbarometers run-in

2020 ◽  
Author(s):  
Emeline Guilbert ◽  
Anthony Hue
Keyword(s):  
Design Methodology ◽  
Test Bench ◽  
Assessment Methods ◽  
Noise Measurement ◽  
Testing Conditions ◽  
Sensitivity Assessment ◽  
Electrical Calibration ◽  
Quality Approach

<p>Seismo Wave Company is ongoing improving metrological processes and quality surveys to guarantee the best Infrasound sensors technology. In accordance with our quality approach, a running-in step for infrasound sensors has been investigated and implemented. Once the metrology process is completed (acoustical and electrical calibration, self-noise measurement), objective is to keep monitoring on sensitivity of MB3a sensors during several days, using the in-situ electrical calibration capability. For this purpose, a new bench has been designed and characterized in our laboratory. Different sensitivity assessment methods have been compared. Testing conditions, bench design, methodology and results are laid out in this poster.</p>

Thermochemical Determination of Glucose in Serum, Plasma, and Whole Blood without Prior Deproteinization

1975 ◽  
Vol 21 (6) ◽  
pp. 741-745 ◽  
Author(s):  
C David McGlothlin ◽  
Joseph Jordan
Keyword(s):  
Dynamic Range ◽  
Direct Injection ◽  
Sample Pretreatment ◽  
Linear Dynamic Range ◽  
Linear Dynamic ◽  
Dewar Vessel ◽  
Quantitation Method ◽  
Electrical Calibration

Abstract Glucose can be determined by phosphorylatlon in the presence of hexokinase (EC 2.7.1.1) by using Mg2+/ (ATP)2- as the phosphorylating agent. A novel instrumental quantitation method is described, direct injection enthalpimetry, whereby the heat of the enzymatically catalyzed reaction was measured. The reaction was allowed to proceed to virtual completion (99.5+%) in an adiabatic Dewar vessel at 25.00 ± 0.01 °C (range). Samples were sequentially injected into a reaction mixture consisting of hexokinase, ATP, Mg2+, and a tris(hydroxymethyl)aminomethane buffer (pH 8). Single analyses required <2 min for 0-3 g/liter samples. The linear dynamic range was 0.3-10 g/liter, with zero intercept and a precision and accuracy of 2%. Electrical calibration in situ obviated the need for chemical standards, and because protein and color do not interfere, no sample pretreatment was necessary before analysis.

Frequency response of electromagnetic flowmeters

1964 ◽  
Vol 19 (6) ◽  
pp. 1209-1211 ◽  
Author(s):  
Urs Gessner ◽  
Derek H. Bergel
Keyword(s):  
Frequency Response ◽  
Electromagnetic Flowmeter ◽  
Sine Wave ◽  
Phase Lag ◽  
Simple Method ◽  
Electrical Circuits ◽  
Square Wave ◽  
Significant Difference ◽  
Electrical Calibration

A comparison was made between hydraulic and electrical determination of the frequency response of two types of electromagnetic flowmeter. The output of the square-wave meter tested was reduced in amplitude by 10% at 7 cycles/sec; it lagged behind the input by approximately 4.5°/cycle per second. The output of the gated sine-wave meter was reduced by 10% at 24 cycles/sec and the phase lag was approximately 2.2°/cycle per second. No significant difference was detected between the results of either method of calibration. The frequency response of these instruments is determined by the characteristics of their electrical circuits. It is recommended that each user calibrate his own instrument; a simple method of electrical calibration is described. Since the frequency response of either meter is relatively poor, flow records obtained with them must be appropriately corrected. methods of calibration Submitted on March 9, 1964

Electrical calibration method for cascade impactors

1999 ◽  
Vol 30 (1) ◽  
pp. 111-116 ◽  
Author(s):  
Jorma Keskinen ◽  
Marko Marjamäki ◽  
Annele Virtanen ◽  
Timo Mäkelä ◽  
Risto Hillamo
Keyword(s):  
Calibration Method ◽  
Cascade Impactors ◽  
Electrical Calibration

AN ADIABATIC METHOD FOR THE PRECISE ELECTRICAL CALIBRATION OF THERMOMETERS

1932 ◽  
Vol 54 (10) ◽  
pp. 3785-3799
Author(s):  
Frederick Barry ◽  
Harold W. Webb ◽  
Alfred Kay Smith
Keyword(s):  
Electrical Calibration
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