摘要:
An apparatus for measuring parameters, such as moisture content or basis weight, of a fibrous web, e.g. paper or non-wovens, comprises optical elements and a wavelength selection device for selectively directing a beam of electromagnetic radiation comprising wavelengths in at least the mid infrared (MIR) spectral range through the web; an element, such as a beam stop, arranged in the path of electromagnetic radiation emerging from the web, for separating directly transmitted from scattered electromagnetic radiation; a collector for collecting the scattered radiation; and at least one detector for detecting the scattered radiation collected by the collector.
摘要:
An apparatus for measuring parameters, such as moisture content or basis weight, of a fibrous web, e.g. paper or non-wovens, comprises optical elements and a wavelength selection device for selectively directing a beam of electromagnetic radiation comprising wavelengths in at least the mid infrared (MIR) spectral range through the web; an element, such as a beam stop, arranged in the path of electromagnetic radiation emerging from the web, for separating directly transmitted from scattered electromagnetic radiation; a collector for collecting the scattered radiation; and at least one detector for detecting the scattered radiation collected by the collector.
摘要:
An assembly with a threaded connection, including an outer part made from ceramic, having an axially tapered internal thread, and having a diameter A; an inner part made from ceramic, having an axially tapered external thread, and having an equator with a diameter B, the diameter B at the equator of the inner part amounting to between 80% and 110% of the diameter A of the outer part.
摘要:
A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60.
摘要:
A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60.