New in-cavity sensors for small moldings.New or improved in-cavity sensors for melt pressure, temperature, and mold mold, name for certain multicellular organisms of the various classes of the kingdom Fungi, characteristically having bodies composed of a cottony mycelium. The colors of molds are caused by the spores, which are borne on the mycelium. protection are available from Kistler Instrument Corp., Amherst, N.Y. Its 6189A Series combined pressure/temperature sensor for small parts now comes in a 6190B version offering faster temperature response and increased pressure sensitivity, The sensor has a front diameter of 4 mm (vs. 2.5 mm for the 6189A) and has thermocouple leads threaded through the pressure-sensing elements. It can handle up to 29,000 psi PSI - Portable Scheme Interpreter and 1292 F. Kistler also expanded its line of small piezoelectric The property of certain crystals that causes them to produce voltage when a mechanical pressure is applied to them such as sound vibrations. This technique is used to build crystal microphones, phonograph cartridges and strain gauges, all of which turn mechanical movement into voltage. pressure sensors A pressure sensor measures the pressure, typically of gases or fluids. Pressure is an expression of the force required to stop a gas or fluid from expanding, and is usually stated in terms of force per unit area. A pressure sensor generates a signal related to the pressure imposed. with indirect and direct types. Its new Type 9210A indirect-measuring sensor is 4.4 mm long and has a 1.2 mm front diam. Kistler's new Type 6184A direct-measuring sensor is 6.4 mm long and has 1.2 mm front diam. They both handle pressures up to 29,000 psi. Indirect sensing is one solution to measuring cavity pressure for optical parts with stringent finish requirements. Kistler developed new non-contact pin sensors for indirect measuring. These 9243B, 9245B or 9247A sensors are placed behind the cavity wall cavity wall In architecture, a double wall consisting of two wythes (vertical layers) of masonry separated by an air space and joined together by metal ties. The cavity allows moisture that penetrates the exterior wythe to drain. to measure the compression strain of the steel in response to the melt pressure. The pin sensor cannot mar the optical part surface and avoids influencing the temperature near the surface of the mold. Also new is a mold-protection sensor that contains the measuring element and electronics in a single case. Strain transmitter A device that generates signals. Contrast with receiver. Type 9238A measures small forces during mold movement and closing. The transmitter can be mounted with a single screw. Tel: (716) 691-5100 * www.kistler.com |
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