IT1293758B1 - conductor through which AC flows resistance measuring - determining resistance as function of value of adjustable portion of voltage, which balances voltage drop and a value of AC - Google Patents
conductor through which AC flows resistance measuring - determining resistance as function of value of adjustable portion of voltage, which balances voltage drop and a value of ACInfo
- Publication number
- IT1293758B1 IT1293758B1 ITMI971740A IT1293758B1 IT 1293758 B1 IT1293758 B1 IT 1293758B1 IT MI971740 A ITMI971740 A IT MI971740A IT 1293758 B1 IT1293758 B1 IT 1293758B1
- Authority
- IT
- Italy
- Prior art keywords
- value
- voltage
- resistance
- function
- balances
- Prior art date
Links
Abstract
The method involves measuring an AC and determining a resistance as a function of a value of adjustable portion of a voltage, which balances a voltage drop and the value of the AC - The balance voltage used to calculate the resistance is measured by a voltmeter (10), which has a greater accuracy than that of a lock-in amplifier (9). A distance between the sensors (11,12) may be such as to be able to detect a voltage, which can be perceived by the instruments used.
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT97MI001740 IT1293758B1 (en) | 1997-07-23 | 1997-07-23 | conductor through which AC flows resistance measuring - determining resistance as function of value of adjustable portion of voltage, which balances voltage drop and a value of AC |
DE69803678T DE69803678T2 (en) | 1997-07-23 | 1998-06-18 | AC MEASURING SYSTEM |
NZ502167A NZ502167A (en) | 1997-07-23 | 1998-06-18 | System for measuring the alternating current equivalent series resistance of a conductor |
EP98933635A EP0998677B1 (en) | 1997-07-23 | 1998-06-18 | System for measuring the alternating current |
JP2000504466A JP4119605B2 (en) | 1997-07-23 | 1998-06-18 | System for measuring AC equivalent series resistance of conductors |
CA002297066A CA2297066C (en) | 1997-07-23 | 1998-06-18 | System for measuring the alternating current equivalent series resistance of a conductor |
ES98933635T ES2172164T3 (en) | 1997-07-23 | 1998-06-18 | SYSTEM FOR MEASURING THE ALTERNATE CURRENT. |
BR9810785-2A BR9810785A (en) | 1997-07-23 | 1998-06-18 | Process and system to measure the series resistance of a conductor crossed by alternating current |
AU83388/98A AU744657B2 (en) | 1997-07-23 | 1998-06-18 | System for measuring the alternating current equivalent series resistance of a conductor |
PCT/EP1998/003719 WO1999005533A2 (en) | 1997-07-23 | 1998-06-18 | System for measuring the alternating current equivalent series resistance of a conductor |
ARP980103550A AR013237A1 (en) | 1997-07-23 | 1998-07-21 | METHOD AND ARRANGEMENT FOR MEASURING THE EQUIVALENT SERIES RESISTANCE OF ALTERNATING CURRENT OF A DRIVER |
US09/488,832 US6512383B1 (en) | 1997-07-23 | 2000-01-21 | System for measuring the alternating current equivalent series resistance of a conductor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT97MI001740 IT1293758B1 (en) | 1997-07-23 | 1997-07-23 | conductor through which AC flows resistance measuring - determining resistance as function of value of adjustable portion of voltage, which balances voltage drop and a value of AC |
Publications (2)
Publication Number | Publication Date |
---|---|
ITMI971740A1 ITMI971740A1 (en) | 1999-01-23 |
IT1293758B1 true IT1293758B1 (en) | 1999-03-10 |
Family
ID=11377608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT97MI001740 IT1293758B1 (en) | 1997-07-23 | 1997-07-23 | conductor through which AC flows resistance measuring - determining resistance as function of value of adjustable portion of voltage, which balances voltage drop and a value of AC |
Country Status (3)
Country | Link |
---|---|
AR (1) | AR013237A1 (en) |
BR (1) | BR9810785A (en) |
IT (1) | IT1293758B1 (en) |
-
1997
- 1997-07-23 IT IT97MI001740 patent/IT1293758B1/en active IP Right Grant
-
1998
- 1998-06-18 BR BR9810785-2A patent/BR9810785A/en not_active Application Discontinuation
- 1998-07-21 AR ARP980103550A patent/AR013237A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
AR013237A1 (en) | 2000-12-13 |
ITMI971740A1 (en) | 1999-01-23 |
BR9810785A (en) | 2000-07-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2083802A1 (en) | Sensor to measure crude-in-water percentage | |
KR880009274A (en) | Non-destructive test method for creep damage of ferromagnetic weak pieces | |
WO2003029804A1 (en) | Measurement instrument and concentration measurement apparatus | |
WO1998058250A3 (en) | Methods of calibrating and testing a sensor for in vivo measurement of an analyte and devices for use in such methods | |
EE03185B1 (en) | Method to improve the accuracy of measurement results and corresponding flow meter | |
JPS56143915A (en) | Measuring device for gas flow rate | |
DK584589D0 (en) | Gas meter | |
KR880002019A (en) | How to measure heating power | |
KR920015137A (en) | Precision measurement method of low resistance value | |
IT1293758B1 (en) | conductor through which AC flows resistance measuring - determining resistance as function of value of adjustable portion of voltage, which balances voltage drop and a value of AC | |
ATE398277T1 (en) | CONTROL DEVICE OF A POSITION MEASURING DEVICE | |
JPS57192851A (en) | Limiting current type oxygen concentration detector compensated for temperature of measured output | |
JPS5524686A (en) | Dc resistance measuring method | |
JPS55147357A (en) | Method of testing insulation using asymmetrical ac voltage | |
JPS5523443A (en) | Flow-rate measuring method by electromagnetic flow meter | |
RU18312U1 (en) | DEVICE FOR MEASURING THE VALUE AND DIRECT CURRENT DIRECTIONS IN METAL PIPELINES | |
SU977929A1 (en) | Transformer pickup output signal correction method | |
JPS5782776A (en) | Conductivity meter for ultrapure water | |
JPS6439571A (en) | Method and device for measuring magnetic permeability | |
SE9802394L (en) | Ways to measure the frequency of a sinusoidal signal | |
SU940742A1 (en) | Apparatus for measuring electric resistance of human skin | |
RU2042955C1 (en) | Compensation-type accelerometer | |
JPS5531927A (en) | Measuring unit for displacement amount or the like of rotating body | |
JPS6435240A (en) | Method and apparatus for indentation hardness testing | |
Petrunova et al. | A solution for measuring the ions drift velocity in the space plasma with increased functional possibilities |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |