Abstract:
A testing machine (10; 10') includes a base (12), at least a pair of columns (14) joined to the base (12) and a crosshead (16) joined to the columns (14) at a location spaced apart from the base (12). At least a pair of specimen holders (20A, 20B) are provided. A first specimen holder (20A) is supported by the crosshead (16) and faces the base (12), and a second specimen holder (20B) is supported by the base (12), the base (12) being that portion joined to each of the columns (14) closest to the crosshead (16). An actuator (22) connected in series between one of the specimen holders (20A, 20B) and the corresponding base (12) or crosshead (16). A brace assembly (30; 56; 80) connected to each of the columns (14) at a location along a length of each column (14) between the base (12) and the crosshead (16), the brace assembly (30; 56; 80) spanning between the columns (14) so as to connect the columns (14) together or to the base (12) or the crosshead (16).
Abstract:
A computer implemented method of lab management, including providing machine information on a service tag (102) for a machine (104), the machine information suitable for uniquely identifying the machine (104), and storing auxiliary information (202) about the machine (104) on at least one of one or more remote devices (108, 308), the at least one of the one or more remote devices (108, 308) configured to scan the service tag (102) to retrieve machine information therefrom, and to integrate the auxiliary information (202) with the machine information on the service tag (102).
Abstract:
An extensometer structure (12) includes a first extension arm (34) having a first mount (44) configured to support a first specimen engaging member (58) and a second extension arm (36) having a second mount (46) configured to support a second specimen engaging member (58). A connecting member (76, 76') extends between the first and second extension arms (34, 36) and pivotally connects to each of the first and second extension arms (34,36) between each corresponding mount (44, 46)and a remote end of the extension arm (34, 36). A rear coupling assembly connects remote ends of the extension arms (34,36) together.
Abstract:
An extensometer structure (12) includes a first extension arm (34) having a first mount (44) configured to support a first specimen engaging member (58) and a second extension arm (36) having a second mount (46) configured to support a second specimen engaging member (58). A connecting member (76, 76') extends between the first and second extension arms (34, 36) and pivotally connects to each of the first and second extension arms (34,36) between each corresponding mount (44, 46)and a remote end of the extension arm (34, 36). A rear coupling assembly connects remote ends of the extension arms (34,36) together.
Abstract:
An impact sensor body (100) for sensing Charpy impact force is disclosed. The sensor body (100) includes a body of material with a plurality of apertures (120,130). The apertures (120,130) are configured within the body of material to form a flexure member (125) orthogonal to a direction of motion to strike an object.
Abstract:
A transducer sensor body (10) includes a first support structure (30) and a second support structure (32). A tubular element (20A; 20B) has a center bore along a longitudinal axis (21). An elongated first flexure (26) joins the tubular element (20A; 20B) to the first support structure (30) parallel to the longitudinal axis (21). The first flexure (26) is rigid to transfer a longitudinal force therethrough along the longitudinal axis and is rigid to transfer an axial force therethrough along an axial axis that is orthogonal to the longitudinal axis. An elongated second flexure (28) joins the tubular element (20A; 20B) to the second support structure (32) parallel to the longitudinal axis. The second flexure (28) is rigid to transfer a longitudinal force therethrough along the longitudinal axis and is to transfer the axial force therethrough along the axial axis.
Abstract:
A system for controlling a speed of a pump jack system (10) having a variable speed prime mover (32) includes a sensor (60, 93) attached to the pump jack system (10). The sensor (60, 93) is capable of detecting an absolute position of a first component (14, 44) of the pump jack system (10) relative to a second component (12, 50) of the pump jack system (10) and configured to send a signal proportional to the sensed absolute position (47A, 147 A) and/or velocity (47B, 147B) and/or acceleration (47C, 147C). The system (10) includes process circuitry (49, 149) configured to accept the signal and perform a calculation related to absolute position (47A, 147 A) and/or velocity (47B, 147B) and/or acceleration (47C, 147C) of the first component (14, 44) relative to the second component (12, 50). The system (10) includes a controller (72, 172) that is configured to receive the signal from the process circuitry (49, 149) and configured to send a signal to the prime mover (32) to adjust a rotational speed of the prime mover (32) and the position of the first component relative (14, 44) to the second component (12, 50).
Abstract:
A tire testing machine (10) and a method for testing operating the same includes a tire and wheel assembly (17) having a sensor (40) configured to measure a parameter related to the tire and wheel assembly (17) as it rotates on a rotating element (12). A holder (19) supports the tire and wheel assembly (17). A processor (60, 90) is configured to receive an input at least based on the output signal from the sensor, and provide an output signal (64, 91) indicative of a parameter of a contact patch (24) between a tire (14) of the tire and wheel assembly (17) and the rotating element (12). Controlled element(s) (29, 132) are configured to vary a parameter related to the contact patch (24) and/or friction.
Abstract:
A testing apparatus (12) includes a crosshead (151) and a head assembly (150). The head assembly (150) includes a head cover (156) having an interior volume (182). An electric actuator (152), controls and other electric components (158) are located within the interior volume (182, 184), wherein the motor (152), controls and other electric components (158) generate heat when energized. A divider (170) within the interior volume (182, 184) separates a first volume (182) from a second volume (184). The first volume (182) includes the heat generating electric motor (152), controls and electric components (158) and the second volume (184) contains substantially no heat generating components. The head assembly (150) includes at least one fan (202) within the second volume that draws cool air from outside the head cover (156) and forces the cool air through the second volume (184) and into the first volume (182) to remove heat.
Abstract:
A method and system for correcting for the inertial error of a transducer (10) as a function of frequency by applying a delay (21, 48) to a leading signal of the transducer (10) to provide phase compensation.