摘要:
In Verbindung mit einer Vorrichtung zur Messung der Eigenfeuchte von aus einem Vorratssilo oder dergleichen ausfließenden Schüttstoffen im fließenden Materialstrom mit einem den Materialstrom aufnehmenden, schräg stehenden Leitblech und einer im Leitblech integrierten, den Schüttstoffen entsprechend kalibrierten Feuchtemeßeinrichtung, insbesondere zur Verwendung in Verbindung mit der Messung der Eigenfeuchte der Bestandteile einer Baustoffmischung, wird vorgeschlagen, daß das Leitblech (5) strömungsbeeinflussende Mittel aufweist. Das Leitblech (5) ist dabei dem Vorratssilo (2) unmittelbar benachbart zugeordnet.
摘要:
A test sample of raw or compounded rubber is squeezed from a loading chamber (7) through selectively-aligned passages (8, 12) to fill an annular space (1) between a coaxial stator (5) and rotor (4). Measurements of viscous torque are provided by a sensor (15), and a load cell (14) provides measurements of the force exerted axially by the sample. The torque and axial-force measurements are plotted against time (16 Fig. 4, 17 Fig. 5) as representative respectively of the viscosity V and elasticity of recovery E of the sample, and are compared for correspondence (within limits 19, 20) with earlier-plotted characteristics of an acceptable rubber for processing. Temperature of the sample is regulated by a heater (18) and rotation of the rotor (4) is at a speed and for a duration corresponding to that of the next processing stage.
摘要:
A system for performing a flexometer test includes a balanced beam (16) supporting an anvil (24) upon which a viscoelastic material (14) is placed, the balanced beam (16) being balanced upon a rotatable shaft (102) and pivotable about the axis of the rotatable shaft (102), an assembly for applying a static load to the material, a hammer (52) opposite the anvil (24) for applying a dynamic strain to the material, and a sensor which senses permanent dimensional changes in the material.
摘要:
A wiper assembly for cleaning optical surfaces. The structure comprises a pneumatically activated wiper element including a wiping means (20) connected to a spring member (17) disposed within a cylinder (16). The wiper element is actuated by air pressure generated by a pumping means (12). The wiping means is connected to an end of a piston rod (19) which passes longitudinally through the cylinder. When activated, the wiping element moves across an optical surface to be cleansed, and at a conclusion of its return stroke, has removed during its simple return stroke, frost, hydrocarbons, entrained particulate material and moisture from the optical surface.
摘要:
A measurement apparatus and method for determining the traction and coefficient of friction of a material on a roller. First and second rollers transport the material. Encoders are coupled to each roller, and a motor is coupled to one of the rollers. The motor applies a forward and reverse torque to the first roller, wherein the material slips relative to the roller. A computer coupled to the encoders calculates the traction and coefficient of friction.
摘要:
A device is provided for measuring the force acting on a vehicle wheel by means of a stress detection sensor (3) disposed in a hole (2) provided in a vehicle axle (1). Signals from the strain gauges of the sensor are processed in a signal processing circuit (41, 44). The stress detection sensor (3) is secured in the hole (2) by spacer means (4). The spacer means (4) comprise a material which fills all of the space between the detection sensor (3) and the walls of the hole (2). Preferably, the material of the spacer means (4) is the same material as the base (20) of the sensor.
摘要:
An apparatus and method for detecting friction characteristics are disclosed, in which a wheel resonant system includes a vehicle body, a road surface and at least a wheel. A braking force control system exerts a braking force on the wheel. A resonant component detector determines a resonant gain providing the ratio between the amplitude of predetermined frequency component of the braking force and that of the wheel velocity and detects the ratio of the resonant gain to a present reference gain, a deviation calculator calculates the deviation between this ratio and unity, a PI controller controls the braking force control system in such a manner that the deviation coincides with zero, and a friction characteristics detector detects the friction characteristics on the basis of the braking force. When the friction force is made to approach a peak value by increasing the braking force, the resonant characteristics undergo a change thereby to reduce the resonant gain. By controlling the braking force in such a manner that the deviation coincides with zero, therefore, the friction characteristics are held at a peak value. This braking force reflects the friction characteristics, and therefore the friction characteristics between the road surface and the wheel can be accurately detected according to the relative magnitude of the braking force.
摘要:
A novel denture adhesive composition contains an adhesive mixture comprising sodium carboxymethyl cellulose and, either a partially neutralized sodium, magnesium, zinc mixed salt or a partially neutralized magnesium, zinc mixed salt of an alkyl vinyl ether maleic acid copolymer.
摘要:
A apparatus for testing the bond between an (electric) element and a support provided with conducting tracks, which apparatus includes a vertically movable arm, to which a first hook-shaped element can be attached, by means of which hook-shaped element it is possible to catch inter alia a wire which is on the one hand connected to said element and which is on the other hand connected to a conducting track on said support, and whereby a first force sensor is mounted between said hook-shaped element and said arm, whereby furthermore a second rigid element can be attached to said arm, by means of which rigid element a horizontal shearing force can be exerted on said element or on the bond between said wire and said element, whereby the apparatus furthermore includes an X-Y-table disposed under said arm, to which a support comprising one or more elements can be secured, and whereby said apparatus comprises a second horizontally disposed force sensor, by means of which the horizontal force being exerted on said element or on said bond can be measured.
摘要:
A method of testing the bonding strength of a semi-finished valve seat (20) of a cylinder head unit (11) whereby a valve seat base material (20) is metallurgically bonded to an opening (13A,14A) of said cylinder unit (11) and the inner diameter of said bonded valve seat base material is smaller than an inner diameter of said opening, comprises the steps of hooking a test device (41) on that extending part (44) of said valve seat base material (20) facing to the interior of said opening (13A,14A) and applying a tensile force to this device (41) directed to the outside of said cylinder head unit (11).