TWO-PARAMETER MEASUREMENTS AND SIGNAL CONDITIONING IN DOUBLE-CURRENT SUPPLY FOUR-TERMINAL RESISTANCE CIRCUITS
Journal Title: Metrology and Measurement Systems - Year 2006, Vol 13, Issue 1
Abstract
A new type of the four-terminal (4T) bridge circuit unconventionally supplied by current sources connected in parallel to opposite arms, named double current bridge (2J) is presented. It has two different outputs from both diagonals. Three variants of such circuit are proposed. Their output voltages are given as functions of arm resistance increments in absolute and in relative units . Signal conditioning formulas of the two-parameter (2D) measurement of these increments and also of two external variables differently influencing them are discussed in detail. First results of instrumentation designed experimentally using 2J bridge circuits are shortly presented. A summary and prospective applications of 2J bridge circuits in multivariable measurements are given. Literature is included.
Authors and Affiliations
ZYGMUNT WARSZA
Keywords
Related Articles
- EP ID EP113128
- DOI -
- Views 47
- Downloads 0
FREQUENCY INDEXES OF RESPIRATION DURING INTERRUPTER EXPERIMENT
A new issue of the respiratory mechanics evaluation by the frequency mode of the interrupter technique is undertaken in the paper. The aim of the computer-aided research is to show the abilities to separate airways and t...
MEASUREMENT OF COMPLEX CONDUCTIVITY IN CARBON NANOTUBE POLYMER COMPOSITES UNDER MECHANICAL SHEAR
We measured the complex conductivity of carbon nanotube-polypropylene composites under mechanical shear conditions. In order to determine how flow alters the properties of these complex fluids we constructed a rheo-diel...
FEASIBILITY AND CHALLENGES OF DSL LOOP MAKE-UP IDENTIFICATION VIA SINGLE-ENDED LINE TESTS
Digital subscriber lines (DSL) offer the possibility to deliver broadband services over the existing telephone network. Yet, before deploying DSL, the subscriber loops must be tested to see if they can support high-speed...
DYNAMICS OF CONTACT THERMOMETRIC SENSORS WITH ELECTRIC OUTPUT AND METHODS OF ITS IMPROVEMENT
The paper deals with selected aspects of modelling dynamic properties of contact thermometric sensors and reducing the dynamic error occurring in measurement of time-variable temperature as well as in measurement of cons...
HYBRID MODELING OF BIOMEDICAL SYSTEMS AND MEASURING NONLINEAR CHARACTERISTICS OF BIOSIGNALS FOR IMPROVING QUALITY OF LIFE<br />
The main purpose of this paper is to present some metrological aspects of the new concept of hybrid modeling (combined physical and in silico) of biological systems as well as possible applications of nonlinear (symbolic...