From VTI Instruments Corporation

Data acquisition systems make various types of physical measurements, such as temperature, pressure, flow, strain, position, and speed, using electronic equipment. The data collected is usually sent to a computer for analysis and display. Data acquisition and control (DAC) systems also take action (control) based on the data they receive. Turning on or off lights, motors, valves, heaters, and fans are common functions of control. Sending out voltage, current, digital words, pulses, and waveforms are also forms of control from the DAC system. DAC software running in the computer coordinates and executes these functions. (Figure 1)

Read the Whole Article

Product Announcements
J&D Tube Benders, Inc. - Hydraulic Tube Assembly Fabrication
J & D Tube Benders is a full line supplier of hydraulic tube assemblies and exhaust or return manifolds. We have a large inventory of standard hydraulic end fittings and tubing, including... (read more)
Leonhardt Manufacturing - Domestic World-Class End-Forming
Leonhardt offers tube end-forming capabilities to meet most applications and design requirements including tube swaging, flaring, flanging, beading, bulging, chamfering, crimping, tapering, notching,... (read more)
J&D Tube Benders, Inc. - Custom Precision Pipe & Tube Bending Services
J & D Tube Benders is a full service tube bending operation, specializing in 1D Bending and offering full CNC tube bending of pipes and tubes ranging from 1/4" to 5" in diameter. J & D works... (read more)
J&D Tube Benders, Inc. - Metal Tube End Forming
J & D Tube Benders will provide any type of end condition to all custom pipe and tube part or assembly. We have the capabilities to create expansions, reductions, slip joints as well as flattening... (read more)
J&D Tube Benders, Inc. - Reverse Engineering of Discontinued Parts
Hydraulic Tube Assembly Fabrication J & D Tube Benders is a full line supplier of hydraulic tube assemblies and exhaust or return manifolds. We have a large inventory of standard hydraulic end... (read more)
Haskel International, Inc. - How to expand heat exchanger tubes efficiently
Expand heat exchanger tubes into tube sheets through the direct application of high internal hydraulic pressure. Direct Hydraulic expansion with pure water produces clean joints. Minimize stress,... (read more)
J&D Tube Benders, Inc. - Expansions, Reductions, Slip Joints.
J & D Tube Benders will provide any type of end condition to all custom pipe and tube part or assembly. We have the capabilities to create expansions, reductions, slip joints as well as flattening... (read more)
 

Topics of Interest

17.1 ROLL FORMING Roll forming transforms a flat sheet into another shape. As the new shape is formed over some distance, its width generally decreases as illustrated in Figure 17.1. During this...

In the distant past, artisans called blacksmiths used the earliest "process" to generate a usable shape from metal, a hammer and anvil. Manufacturing was "one at a time" and very slow. Approximately...

Tube processing specialist HMD Ltd's new 21,000 sq. ft. building in Hoyland Road, Sheffield, has nearly three times the floor area of its current unit and is home to a four-machine tube processing...

A section of once through steam generator (OTSG) tubing, approximately 33 cm. long and encompassing the roll expansion region in the upper tubesheet (hot leg), was removed from the Davis Besse Nuclear...

BASIC CHARACTERISTICS OF SHEET-METAL FORMING PROCESSES Sheet-metal parts are usually made by forming material in a cold condition, although many sheet-metal parts are formed in a hot condition...