scholarly journals OPTIMIZATION OF SEMICONDUCTOR PRESSURE TRANSDUCER WITH SENSITIVE ELEMENT BASED ON “SILICON ON SAPPHIRE” STRUCTURE

2018 ◽  
Vol 15 (30) ◽  
pp. 678-686
Author(s):  
S. S. GAVRYUSHIN ◽  
P. A. SKVORTSOV ◽  
A. A. SKVORTSOV
Keyword(s):  
Strain Gauge ◽  
Sensitive Element ◽  
Quality Criteria ◽  
Quality Parameters ◽  
Elastic Membrane ◽  
Control Parameters ◽  
Optimization Calculation ◽  
Strain Gauge Transducer ◽  
Membrane Type ◽  
Semiconductor Strain

The paper is devoted to the study of the process of optimizing the semiconductor strain-gauge transducer on the structure of the SOS. As an object of the study, an elastic membrane-type element with a semiconductor strain-gauge in the form of a silicon-on-sapphire structure was used. To study the surface of sapphire, the optical photolithography method was used. In the framework of this task, the control parameters and the quality parameters of the serially-manufactured strain gauge were determined. The paper describes the methodology for multicriteria optimization, and also an optimization calculation for the strain-gauge on the SOS. The main result is the obtaining of Pareto-optimal design variants that exceed the basic variant by all quality criteria.

Precision Transducer for High Pressure Infrared Measurements

1969 ◽  
Vol 23 (2) ◽  
pp. 157-159 ◽  
Author(s):  
J. V. Fox ◽  
H. W. Prengle
Keyword(s):  
High Pressure ◽  
High Precision ◽  
Strain Gauge ◽  
Freezing Point ◽  
Mathematical Function ◽  
Ir Absorption ◽  
Infrared Measurements ◽  
Strain Gauge Transducer ◽  
Pvt Measurements ◽  
Semiconductor Strain

An externally mounted high pressure semiconductor strain gauge transducer of high precision is described which was used in connection with liquid ir absorption and PVT measurements up to 10 000 atm pressure. The transducer is nonlinear, but can be calibrated by a three point procedure, one point of which is the freezing point of mercury at 0°C, and fit to a derived mathematical function. The precision of the device is approximately 0.8 atm, with a repeatability of 5.5 parts in 10 000, at a level of 10 000 atm.

scholarly journals Quality Control of Wild Berries Honey Syrup

2013 ◽  
Vol 70 (2) ◽  
pp. 114
Author(s):  
Laura Stan ◽  
Alina Maria Hangan ◽  
Sevastiata Muste
Keyword(s):  
Quality Control ◽  
Quality Criteria ◽  
Quality Parameters ◽  
Control Parameters ◽  
Total Sugars ◽  
Long Period ◽  
Quality Control Parameters ◽  
Valuable Method ◽  
Basic Quality ◽  
Wild Berries

This paper presents the quality control parameters of wild berries honey syrup . The product was created in laboratory (wild berries: honey, 1:4 w/w) and there were no changes recorded in overall quality over 6 months preservation at 1-2°C. Basic quality parameters of the product were evaluated: humidity, pH, acidity, hydroxymethylfurfural, diastase, total sugars and ascorbic acid. Methods developed by Internantional Honey Commission and Romanian Food Quality Standards were applied during this study. The product presented qood quality criteria and it was highly appreciated by consumers who tasted it. This study presents a valuable method to preserve fresh widberries in honey over a long period of time. The economical value of this experiment resides in making these fruits available outside the harvesting season.

The Need for Quality Assessment of mHealth Interventions

2021 ◽  
pp. 89-113
Keyword(s):  
Quality Assessment ◽  
Medication Management ◽  
Quality Criteria ◽  
Information Provision ◽  
Quality Parameters ◽  
Mobile App ◽  
Target Drug ◽  
Need To Evaluate ◽  
Mhealth Apps

With growing numbers of mHealth interventions, there is a need to evaluate the quality of existing apps based on quality assessment criteria that are grounded in published literature and health behavior research. These criteria can help identify the quality of mHealth apps from the perspectives of reliability, feature usefulness and feature convenience. This chapter will discuss the various quality criteria that are relevant for mHealth apps that target drug-related problems, as well as for medication management, through the development of two quality assessment tools. In addition to reliability, usability and privacy criteria, other feature criteria related to tele-monitoring, interaction checkers, dose calculators, medication information provision, medication records, as well as tele-support, tele-collaboration and personalization/contextualization, will be discussed. This chapter aims to provide guidance to mobile app developers, clinicians and patients on the types of quality parameters to consider in apps that are designed for pharmaceutical care and medication management.

Strain-Gauge Transducer for Fluctuating Pressure Study

1967 ◽  
Vol 35 (5) ◽  
pp. 415-418
Author(s):  
B. S. Gill ◽  
V. J. Modi ◽  
K. L. Tong
Keyword(s):  
Strain Gauge ◽  
Fluctuating Pressure ◽  
Strain Gauge Transducer
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