A process and apparatus applicable to products which are or can be made electrically conductive for the purpose of measuring information encoded in them as a result of the manufacturing steps employed. Elemental mechanogalvanic potentials reflect a measure of the total information content of a product and are generated when the product serves as an electrode and where a second electrode with a rollable solid electrolyte in contact with the product rolls over it generating data related to the ele...

An apparatus for determining oxygen content in a sealed container is disclosed. The apparatus comprises a sampling tube having a sampling zone which is provided with a pumping means, a change-over valve means for communicating the sampling zone selectively with either inlet or outlet path and a measuring instrument containing an electrode for oxygen determination and air-tightly connected to said sampling tube where one end of the outlet path is opened against the electrode.

The presence of an organic liquid is detected by means of a probe which comprises a rubber-like material which is swellable in an organic liquid, which rubber-like material has electrically-conductive solid particles distributed therethrough, in such concentration as to touch each other.

Device for determining the concentration of vaporous components in a gas current, wherein the gas current reacts in a heated reaction room with ozon and the intensity of the chemiluminescent radiation emitted herewith is measured by a photoelectric cell.

In an apparatus for continuous draw-off of yarn from a package at a measured rate and under regulated tension, the yarn can either be passed to a waste receptacle for a predetermined length of time or can be metered to a scale for subsequent determination of yarn weight per unit length (denier). Diversion of the running yarn from one path to the other is achieved without affecting yarn draw-off rates and tensions.

Apparatus for use in determining the moisture content of fodder, more particularly ensilage, by subjecting a given weight of ensilage to a predetermined pressure to force moisture from the ensilage. The apparatus includes a hollow cylinder which is removably supported on a bottom plate, which plate is in turn removably mounted on a base. A plurality of small diameter openings are formed in the walls of the cylinder and through the hollow plate. These openings provide passages through which liqui...

A magnetic field is determined with a Hall element having a high sensitivity. Such an element is very susceptible to a variation of environmental temperature and thus requires a compensation thereof for the determination of a magnetic field. Two electric signals, indicative of the magnitudes of the Hall voltage and the temperature, respectively, are produced and fed into respective inputs of an analog calculator to thereby indicate the determined magnitude of the magnetic field automatically. In...

A hand operable device for conveniently determining geometric pitch of propellers. The device includes a level indicating device and a support means therefor. The support means has pressure surfaces engaging protrusions disposed thereon in a plane oblique to the axis of the level indicating device. The configuration is such that the axis of the level indicating device will lie in a horizontal plane only when the propeller pressure surface engaging protrusions are disposed upon a pressure surface...

The position of a receiver responsive to C/A signals derived from multiple, orbiting space crafts is determined to an accuracy of greater than 300 meters. Each of the C/A signals has the same carrier frequency and a different, predetermined Gold code sequence that normally prevents position determination to be more accurate than to within 300 meters. C/A signals transmitted to the receiver are separately detected by cross correlating received Gold code sequences with plural locally derived Gold ...

A radioassay system for the determination of methotrexate in biological fluids based on the competitive binding of labeled and unlabeled methotrexate to the enzyme dihydrofolate reductase. Samples of unknown methotrexate level are mixed with I.sup.125 labeled methotrexate. A portion of the total methotrexate present is bound by the addition of enzyme, and the unbound methotrexate is removed with charcoal. The level of bound I.sup.125 labeled methotrexate is measured in a gamma ray counter. To ca...