Investigating linearity of a high voltage capacitance bridge

2014 ◽  
Author(s):  
E.-P. Suomalainen ◽  
J. Hallstrom
Keyword(s):  
High Voltage ◽  
Capacitance Bridge

scholarly journals Uncertainty Analysis in Potential Transformer Calibration Using a High Voltage Capacitance Bridge

2007 ◽  
Vol 2 (3) ◽  
pp. 401-407
Author(s):  
Jae-Kap Jung ◽  
Sang-Hwa Lee ◽  
Jeon-Hong Kang ◽  
Sung-Won Kwon ◽  
Myung-Soo Kim
Keyword(s):  
Uncertainty Analysis ◽  
High Voltage ◽  
Capacitance Bridge

Implementation of a high-voltage primary standard method using a capacitance bridge

2014 ◽  
Author(s):  
Vladimir Rodrigues de Lima ◽  
Mohamed Agazar ◽  
Isabelle Blanc ◽  
Pierre Jean Janin ◽  
Patricia Cals de Oliveira Vitorio ◽  
...  
Keyword(s):  
High Voltage ◽  
Standard Method ◽  
Primary Standard ◽  
Capacitance Bridge

High Voltage Electron Microscopy of Ion-Milled Dental Enamel

1974 ◽  
Vol 32 ◽  
pp. 60-61
Author(s):  
L. D. Ackerman ◽  
S. H. Y. Wei
Keyword(s):  
Electron Microscopy ◽  
High Voltage ◽  
Third Molar ◽  
Polarized Light ◽  
Dental Enamel ◽  
Longitudinal Section ◽  
Ion Milling ◽  
High Voltage Electron Microscopy ◽  
Voltage Electron ◽  
High Voltage Electron

Mature human dental enamel has presented investigators with several difficulties in ultramicrotomy of specimens for electron microscopy due to its high degree of mineralization. This study explores the possibility of combining ion-milling and high voltage electron microscopy as a means of circumventing the problems of ultramicrotomy.A longitudinal section of an extracted human third molar was ground to a thickness of about 30 um and polarized light micrographs were taken. The specimen was attached to a single hole grid and thinned by argon-ion bombardment at 15° incidence while rotating at 15 rpm. The beam current in each of two guns was 50 μA with an accelerating voltage of 4 kV. A 20 nm carbon coating was evaporated onto the specimen to prevent an electron charge from building up during electron microscopy.

Three-Dimensional Visualization of the T-System of Frog Muscle Using High Voltage Electron Microscopy and a Lanthanum Stain

1977 ◽  
Vol 35 ◽  
pp. 570-571 ◽  
Author(s):  
Lee D. Peachey ◽  
Clara Franzini-Armstrong
Keyword(s):  
Electron Microscopy ◽  
High Voltage ◽  
Three Dimensional ◽  
Biological Tissues ◽  
High Voltage Electron Microscopy ◽  
Transverse Tubular System ◽  
Peroxidase Reaction ◽  
Voltage Electron ◽  
High Voltage Electron ◽  
T System

The effective study of biological tissues in thick slices of embedded material by high voltage electron microscopy (HVEM) requires highly selective staining of those structures to be visualized so that they are not hidden or obscured by other structures in the image. A tilt pair of micrographs with subsequent stereoscopic viewing can be an important aid in three-dimensional visualization of these images, once an appropriate stain has been found. The peroxidase reaction has been used for this purpose in visualizing the T-system (transverse tubular system) of frog skeletal muscle by HVEM (1). We have found infiltration with lanthanum hydroxide to be particularly useful for three-dimensional visualization of certain aspects of the structure of the T- system in skeletal muscles of the frog. Specifically, lanthanum more completely fills the lumen of the tubules and is denser than the peroxidase reaction product.

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