Patents
Patents for G01N 27 - Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means (109,839)
12/1988
12/14/1988CN87103013A Nondestructive testing method for reinforced concrete structures
12/13/1988US4791465 For detecting ion concentration
12/13/1988US4791374 In lubricating oil of internal combustion and diesel engines using an electroconductive polymer
12/13/1988US4791354 Method for measuring the AC electrical conductance of a polymeric composite to determine homogeneity of dispersion of a filler
12/13/1988US4791353 Scanning combination thickness and moisture gauge for moving sheet material
12/13/1988US4790925 Electrochemical gas sensor
12/13/1988US4790924 Method of fabrication of air/fuel sensors based on electrochemical pumping and sensors made thereby
12/13/1988US4790919 Photopolymerized acrylamides; controlled porosity gradients
12/13/1988CA1246675A1 Measurement of gas content in molten metal using a constant current source
12/13/1988CA1246674A1 Apparatus for chemical measurement of blood characteristics
12/08/1988DE3818845C1 Glass electrode having integrated reference electrode (one-piece electrode) and immobilised electrolytes
12/07/1988EP0294359A2 Oxygen-stable substituted ferrocene reference electrode
12/07/1988EP0294340A2 Method and apparatus for detection of gases as impurities in an inert gas
12/07/1988EP0294334A1 Capacitance measuring detector
12/07/1988EP0294159A1 Branched sensor system
12/07/1988EP0294085A2 Electrochemical elements
12/07/1988EP0294001A1 Process for measuring the effective inhibitor concentration during metal deposition from aqueous electrolytes
12/07/1988EP0293858A2 Apparatus for measuring electrolytes
12/07/1988EP0293663A2 Apparatus and method for determining hydrofluoric acid in aqueous solutions
12/07/1988EP0293658A1 Apparatus for transferring biological specimens from a gel to a transfer membrane and method
12/07/1988EP0293541A1 Amperometric apparatus, cell and method for determination of different gaseous species
12/07/1988CN87213961U Slope displaying and adjustable soda-acid property testing instrument
12/06/1988US4789828 Coolant structure for a device for determining the quality of hot test objects
12/06/1988US4789827 Magnetic flux leakage probe with radially offset coils for use in nondestructive testing of pipes and tubes
12/06/1988US4789804 Analytical device and method utilizing a piezoelectric crystal biosensor
12/06/1988US4789783 Discharge ionization detector
12/06/1988US4789561 Oxygen electrode with layer comprising electrode and electrolyte materials
12/06/1988US4789454 Solid solutions of urania and/or scandia, dyprosia, yttria, praseodymia coated with noble metal
12/06/1988US4789453 Electrodes for the combined measurement of oxygen and carbon dioxide
12/06/1988US4789445 Method for the electrodeposition of metals
12/06/1988US4789436 Polarographically with clarke type electrode
12/06/1988US4789435 Spotting reference and sample liquids on electrically insulated ion-selective electrode sheets
12/06/1988CA1246246A1 Method and apparatus having rf biasing for sampling a plasma into a vacuum chamber
12/06/1988CA1246224A1 Method and an apparatus for determining the degree of freshness of pieces of food
12/06/1988CA1246145A1 Computerized electromagnetic internal diameter tubular inspection device
12/01/1988WO1988009501A1 Spin coating of electrolytes
12/01/1988WO1988009500A1 Electrochemical micro sensor
12/01/1988WO1988009499A1 Optimized capacitive sensor for chemical analysis and measurement
12/01/1988WO1988007678A3 Circuit arrangement for evaluating a signal produced by a semiconductor sensor
12/01/1988DE3715856A1 Apparatus for concentrating electrically charged macromolecules - in particular eluted from a gel - situated in a liquid
12/01/1988DE3715700A1 Measuring capacitor
11/1988
11/30/1988EP0293276A1 Method of making a substrate having a high resistivity, and its use in a gas analysis probe
11/30/1988EP0293230A2 Acidic gas sensors
11/30/1988EP0293010A2 Method of producing gradient gel medium membrane for electrophoresis
11/30/1988EP0292974A2 Atmospheric sampling glow discharge ionization source
11/30/1988EP0292837A1 Polycationic buffers and method for gel electrophoresis of nucleic acids
11/30/1988CN88211182U Micro-leakage reference electrode
11/30/1988CN88201272U Steel wire flaw detector without damage
11/29/1988US4788506 Measuring probe
11/29/1988US4788499 Method and eddy current test probe for the inspection of screws for nuclear reactor pressure vessels
11/29/1988US4788491 Method of the measurement of interstitial atoms in alloys including the hydrogen content of solid hydrides, and of sorbed species on surface
11/29/1988US4788466 Piezoelectric sensor Q-loss compensation
11/29/1988US4787966 Oxygen concentration sensor for an internal combustion engine
11/29/1988CA1245722A1 Method and apparatus for measuring electrical conductivity of a subject
11/24/1988DE3733355C1 Apparatus for measuring the moisture (humidity) in a gas at high temperature and high pressure
11/23/1988EP0292187A1 Method of using an ion trap in the chemical ionization mode
11/23/1988EP0292130A2 Toner concentration detection
11/23/1988EP0291904A2 Ion-selective electrode having a non-metal sensing element
11/23/1988EP0291903A2 Membrane anchor for ion-selective electrodes
11/23/1988EP0291528A1 Solid compositions for fuel cells, sensors and catalysts
11/23/1988EP0291527A1 Quality control systems.
11/23/1988EP0291508A1 Capacitive sensor circuit.
11/23/1988CN88212190U Electronic detector for water content in oil
11/23/1988CN88100066A Water quality manage method, conductance measuring method and device used in there
11/22/1988US4786875 Conductivity measuring circuit
11/22/1988US4786476 Titanium oxide and europium, samarium or indium oxide, internal combustion engine
11/22/1988US4786399 Seal means for isolated grounded O2 sensor
11/22/1988US4786398 Sensing concentration in unknown gas relative to refreence gas; excluding water
11/22/1988US4786397 Seal for single wire O2 sensor
11/22/1988US4786396 Ion electrode and method of making it
11/22/1988US4786395 Oxygen analyzer
11/22/1988US4786374 Electro-chemical sensors and methods for their manufacture and use
11/22/1988US4786373 Voltammetric method of measuring
11/22/1988US4786372 Analysis of fluid samples
11/22/1988US4785658 Method and apparatus for sensing hydrocarbon gases
11/22/1988EP0195070A4 Method and apparatus for producing electromagnetic surveillance fields.
11/22/1988CA1245377A1 Method and apparatus for detecting very small concentrations of gases or vapors in a gas mixture
11/22/1988CA1245287A1 General purpose potentiostatic test system
11/17/1988WO1988009053A1 Process and installation for determining the thickness of layers in layered semi-conductors
11/17/1988WO1988008975A2 Electrochemical sensor with solid phase electrolyte
11/17/1988WO1988008974A1 Electrode
11/17/1988WO1988008973A1 Improved flow cell
11/17/1988WO1988008972A1 A system employing a biosensor to monitor a characteristic of a select component in a medium
11/17/1988WO1988008957A1 Gap, wear and tram measurement system and method for grinding machines
11/17/1988WO1988008875A1 Cycling biochip sensor
11/17/1988WO1988008742A1 Moisture remover
11/17/1988EP0291462A2 Integrated-circuit micro probe for detecting certain gases
11/17/1988EP0291363A2 Method for measuring the content of carbonaceous matters in an oil for diesel engines
11/17/1988EP0291130A2 Biosensor with enzymatic membrane chemically bound to a semiconductor device
11/17/1988EP0291063A2 Electroblotting apparatus and method for transferring specimens from a polyacrylamide electrophoresis or like gel onto a membrane
11/17/1988EP0290522A1 Device for generating and detecting magnetic material structures at atomic levels.
11/17/1988EP0290513A1 Method for detecting thickness variations in the wall of a current conducting tubular body.
11/17/1988EP0195792B1 Method and device for detecting by using foucault currents typical defects on a product
11/17/1988EP0127645B1 Fire alarm and electrode device therefor
11/17/1988DE3715275A1 Method and apparatus for generating a control signal dependent on the oxygen content in gases
11/17/1988DE3715260A1 Apparatus for the detection and for the quantitative determination of nitrogen dioxide in a gas mixture and a method for making the apparatus
11/17/1988DE3644821A1 Arrangement and method for installation and exchange of sensors in instruments of all types
11/16/1988CN88102481A System and method for detecting contaminanis in steam power generating system
11/15/1988US4785284 Fire monitoring system
11/15/1988US4785243 Electronically scanned eddy current flaw inspection