Strain Gages
measure of displaced surface elements.
See Also: Strain Gauges, Strain Gage Amplifiers, Strain Gage Signal Conditioners, Strain
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Product
Bolt Extensometers for Proof Load Testing
Model 3565
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Jinan Testing Equipment IE Corporation
The Model 3565 uses hard conical points to contact the bolt at the center of the head and at the bottom. It is fully adjustable for different length bolts ranging from 25 mm (1 inch) in length to 150 mm (6 inches) standard. Extension beams are available for longer bolts. The standard maximum measuring range is 1.25 mm (0.05 inches). Generally, on longer bolts this extensometer will be self-supported without requiring any centering marks or punch marks on the bolt. For shorter bolts these marks may be required. If the conical pins are sharp, marks are often not needed even on the shortest bolts.The extensometer has a zero adjustment screw to adjust the length between the contact pins. This is used to set the output voltage to zero, which corresponds to the correct starting position for the test. It also includes a breakaway lower arm. In the event a bolt should fail, the breakaway arm snaps free, helping to prevent damage to the extensometer. This is easily re-installed. In the event that bolt failures are likely during a test, it is recommended the user attach a cord around the upper part of the beam and tie the other end to the test frame to prevent the extensometer from falling. The conical point contacts included with the extensometer are made from tungsten carbide.The Model 3565 extensometers are strain gaged devices, making them compatible with any electronics designed for strain gaged transducers. Most often they are connected to a test machine controller. The signal conditioning electronics for the extensometer is typically included with the test machine controller or may often be added. In this case the extensometer is shipped with the proper connector and wiring to plug directly into the electronics. For systems lacking the required electronics, Epsilon can provide a variety of solutions, allowing the extensometer output to be connected to data acquisition boards, chart recorders or other equipment.
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Product
DMS Transmitter
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Knick Elektronische Messgeräte GmbH & Co. KG.
Transmitter for load cells and the evaluation of strain gages in 6 mm housing with calibrated range selection.Detection signals from sensors for physical variables such as displacement, angle, pressure or force. Functional safety up to SIL 2, SIL 3 redundant to parameterization via interface or intuitively, directly on the device. Universal use with 24 V DC or AC power supply.
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Product
Mini Load Column Load Cell Compression Only with Mounting
MLC SERIES
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The MLC Series is our miniature high capacity compression only load cell/force sensor, featuring low profile compact size for a wide range of portable and dedicated applications up to 30,000 lb The load diameter is slightly convex for accurate load distribution. Low deflection through design results in ultra fast frequency response. The MLCs are designed to be mounted in a shallow machined flat pocket or smooth flat surface, either free or fastened via a bottom 6-32 tapped hole. These load cells are manufactured from heat treated 17-4 ph stainless steel. The sensing element incorporates bonded foil strain gages of the highest quality and are sealed for protection against most industrial Environments.
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Product
MINITAURs - 8-channel universal DAQ system
MINITAUR-S
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Mixed signal 8-channel data acquisition system and multichannel data logger with cutting-edge technology at an attractive price. Universal analog inputs can accommodate various signals like strain gage, IEPE, voltage, current, RTD, thermocouple, and LVDT.
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Product
High-Temperature Strain Gages
ZWH-, ZWN-, & ZWP-Series
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ZWH-, ZWN-, and ZWP-Series strain gages are designed for dynamic and limited static strain measurement at hightemperature.These strain gages are manufactured using a round wire for superior bonding ability and performance. A high-fatigue wire (Option Z) is also available on each of the gages. These gages are supplied with a fiberglassreinforced tape carrier which holds the grid and leads in place during installation and are bonded using ceramic cements or Rokide® flame spray. The shelf-life of thesegages is 9 months.
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Product
General Data Acquisition Device With Strain Gage Measurement
Spider-80SG
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The Spider-80SG is a high precision, general purpose data acquisition device featuring strain gage measurement. This device can be used in a variety of physical and measurement tests. The Spider-80SG can acquire data from a strain gage or a wide range of measurement quantities. A variety of general purpose and strain gage based sensors are supported.
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Product
Signal Conditioners
General Purpose
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Encore offers a complete line of General Purpose Signal Conditioning instrumentation to meet even the most demanding requirements. Packaged as interchangeable two-channel plug-in modules, Encore’s broad product line includes frequency to voltage converters, strain gage amplifiers, accelerometer conditioners, digital voltmeters and DC power supplies. All of our systems feature a common CAL input on the rear of the rack which allows for calibration of the entire rack. Calibration function varies based on the modules installed. For example, the Model 633 applies a shunt calibration resistor across the bridge, while the Model 149 applies a reference charge source to the input. Contact Encore today and let our team of design engineers help you determine which of our products is best for your application.
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Product
DC Source/Calibrators
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Our DC Source/Calibrators are designed for a typical applications such as the design, check and calibration of high speed, high resolution A/D converters; design and certification of high speed data logging and process control systems; calibration of digital voltmeters and multimeters; as an “IMBEDDED STANDARD” and/or simulator; design, testing, simulation and certification of thermocouples, strain gages and transducer instrumentation.
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Product
Bridge Amplifier
90376
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This miniature, on-board, transducer amplifier is capable of supplying excitation voltage and amplifying millivolt signals from strain gage based transducers.
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Product
Data Acquisition Systems
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Encore Electronics manufactures a wide range of analog signal conditioning equipment, including strain gage and pressure amplifiers, frequency-to-voltage converters, thermocouple isolation amplifiers and anti-aliasing filters.
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Product
Portable Strain Gage Welding and Soldering Unit
700
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A battery-operated capacitive discharge spot welder for attaching and wiring weldable strain gages and temperature sensors.
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Product
Load Washer
5000 Series
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The Load cell is a stainless steel sub-miniature strain gage based transducer with compensated temperature performance. This type provides measurements up to 20000 lbf with better than ±0.5% (full scale) non-linearity
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Product
Signal Conditioning Instrumentation
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Columbia Research Laboratories
Columbia offers a wide variety of Signal Conditioning Instrumentation for a variety of Sensor types. These range from Laboratory as well as Airborne Charge Amplifiers, Differential Charge Amplifiers, In-Line Charge Converters, Constant Current Power Supplies and ICP Compliant Amplifiers all in support of Columbia's extensive Piezoelectric product line. Additionally Columbia offers unique Strain Gage Instrumentation Amplifiers which provide built in auto zeroing of gage offset voltages which can increase typical measurement accuracies. These robust Signal Conditioning products have been flight qualified on many current military aircraft and missile programs and are now available for your distinctive program needs.
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Product
Load Cells
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The heart of each weighing system is a load cell. Load cells are mechanical components which act as force sensors by employing strain gages to provide an electrical output proportional to the applied force. Typically the electrical output is either analog (voltage or current) or digital. Load cells have specific mechanical packaging and sensing orientation to fit into electronic scales, and testing and monitoring systems. Load cells can be used for tension, compression, and/or shear measurement.
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Product
Digital FM Telemetry
90332
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The 90332 digital FM telemetry systems is designed to be used with full-bridge, strain gage sensors. The system features a miniature transmitter powered by a simple 9V battery, and a remote receiver capability of receiving the digital transmission over long distances. The digital technique eliminates many of the problems associated with traditional analog frequency modulated telemetry systems. Improvements with a digital technique include elimination of ripple, temperature drift characteristics, and higher signal resolution.
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Product
Mini Load Cells
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Interface Mini™ load cells are designed for light touch, light weight, and compact applications. Our miniature load cells provide exceedingly accurate measurements similar to our LowProfile load cells that have our proprietary strain gages. All our miniature beam load cells, load buttons, load washers, rod end load cells, S-type load cells, and platform scale load cells can all be ordered in range of different sizes. Capacities are available as low as 0.11 lbf (0.5 N) and as high as 1,124K lbf (5,000kN). A variety of our miniature load cells are designed for off-the-shelf and OEM applications. Our engineers can also work with you to design custom load cells to fit your exact specifications and requirements.
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Product
DIN Rail Mount
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Encore Electronics offers a complete line of compact, economically priced instrumentation packaged in standard DIN rail mounted enclosures. Our products include frequency to voltage converters, strain gage amplifiers, notch filters, accelerometer conditioners, and line drivers. Overall package sizes are 3.1″ x 3.3″ x 0.9″ tall (single wide) or 1.6″ tall (double wide).
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Product
Linear Strain Gauges
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Linear Pattern Strain Gages are the most straightforward geometry of strain gauge, designed to indicate strain in only a single direction.
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Product
Miniature Axial Extensometers
Model 3442
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Jinan Testing Equipment IE Corporation
Weighing as little as 8 grams, these miniature extensometers are designed to have very low operating force with minimal specimen influence. All use an improved version of Epsilon’s dual flexure design which makes them very rugged for their size. With a module height of 15.2 mm (0.6 inches), they will fit in the limited space between grips that is typical with small test samples. Gauge lengths can be as short as 3 mm or as long as 50 mm. A newly designed gage setting pin and assembly allows the gauge length to be set accurately and repeatably to ASTM and ISO requirements for all gauge lengths. Reengineered quick attach wire forms provide simple and secure specimen attachment. Wire forms for round and flat specimens are included, as well as flat, 3-point, and vee knife edges. The wire forms may be removed to enable mounting using elastic bands or springs. A tethering attachment point provides fall protection and enables counterbalancing of the extensometer’s weight when testing delicate specimens.Model 3442 extensometers are strain gaged devices, making them compatible with any electronics designed for strain gaged transducers. Most often they are connected to a test machine controller and Epsilon will equip the extensometer with a compatible connector wired to plug directly into the controller. For systems lacking the required electronics, Epsilon can provide a variety of solutions for signal conditioning and connection to data acquisition systems, chart recorders, or other equipment.
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Product
Junction Boxes
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VPG Transducers created one of the largest load cell and transducer manufacturers in the world when we brought decades of weighing and force measurement experience under one roof. By harnessing the power of our collective expertise and experience in advanced strain gage technology, we are able to continuously challenge the status quo. As trusted partners, we are committed to providing world-class solutions that meet your needs.
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Product
Force Sensor Elements
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The STL Force Sensing Tension Links are a series of unique force sensors. The Tension Links utilize the internal strain gage process sucessfully and are used in bolts, load pins and flat load cells. The sensing element consists of a strain gage bridge circuit internally installed in a small hole along the longitudinal axis. This unique arrangement provides a most effective means for the protective sealing of the internal electronics while minimizing the adverse effects of extraneous torsion and bending loads.
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Product
Stress Analysis Strain Gages
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Bondable foil strain gages (strain gauges) available in thousands of possible pattern designs and combinations of grid alloys, backing materials, resistances, and options.
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Product
In Line Load Cell (200N-5000N)
100 Series
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Miniature Threaded in Line Load Cells are strain gage based transducers with temperature compensation and excellent overall performance. This type measures tensile and compressive loads up to 5000N with better than ±0.25% non-linearity.
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Product
NI-9235, 10 kS/s/channel, 120 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module
785995-01
Strain/Bridge Input Module
10 kS/s/channel, 120 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module - The NI‑9235 measures dynamic strain on all channels simultaneously, allowing for synchronized, high-speed measurements. This capability is important for applications, such as impact tests, that require comparison across many channels at a particular instant in time. The NI‑9235 includes built-in voltage excitation for quarter-bridge sensors. It also has 60 VDC isolation and 1,000 Vrms transient isolation, providing high‑common‑mode noise rejection and increased safety.
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Product
Rugged, Long Gauge Length Extensometers
Model 3543
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Jinan Testing Equipment IE Corporation
With over 15 years of proven reliability in the world’s most demanding testing environments, the Model 3543 extensometer is designed to survive in those applications where standard axial extensometers would not. Designed by Epsilon, the Model 3543 was created to survive specimen failure by separating into two halves, thus preventing permanent damage to the module body. During operation, the upper half of the extensometer pulls out of the main body. Tapered measuring beams activate strain gaged flexures within the unit. This unique design allows long measuring ranges, yet retains compatibility with electronics for strain gaged transducers. These models offer high accuracy and are light weight but rugged, with low operating force. They are tension only units.The units have hardened tool steel knife edges. Standard quick attach wires provided with the extensometer work on flat specimens up to 12 x 31 mm (0.5 x 1.25 inch) and on rounds up to 25 mm (1 inch) diameter. Optional quick attach kit wire forms are available for use on larger samples. See Model 3542L for long gauge lengths with smaller measuring ranges.The Model 3543 extensometers are strain gaged devices, making them compatible with any electronics designed for strain gaged transducers. Most often they are connected to a test machine controller. The signal conditioning electronics for the extensometer is typically included with the test machine controller or may often be added. In this case the extensometer is shipped with the proper connector and wiring to plug directly into the electronics. For systems lacking the required electronics, Epsilon can provide a variety of solutions, allowing the extensometer output to be connected to data acquisition boards, chart recorders or other equipment.
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Product
High Temperature Furnace COD Gages (1200 C or 1600 C)
Model 3548COD
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Jinan Testing Equipment IE Corporation
These COD gages mount on a water-cooled bracket, which is mounted on the furnace side cut-out or with optional load frame support brackets. The standard temperature version (to 1200℃) is supplied with high purity alumina rods. The high temperature option is furnished with alpha grade silicon carbide rods. Rods are made to order to the length required for your furnace. Mounting brackets may be integrated with the furnace cut-out. Epsilon can also provide optional load frame mounting brackets to fit your test frame. Contact edges on the test sample should be somewhat rounded (not sharp knife edges) for best performance with this model. The Model 3548COD extensometers are strain gaged devices, making them compatible with any electronics designed for strain gaged transducers. Most often they are connected to a test machine controller. The signal conditioning electronics for the extensometer is typically included with the test machine controller or may often be added. In this case the extensometer is shipped with the proper connector and wiring to plug directly into the electronics. For systems lacking the required electronics, Epsilon can provide a variety of solutions, allowing the extensometer output to be connected to data acquisition boards, chart recorders or other equipment.
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Product
Miniature Dual Axis Wireless Sensor
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Advanced Telemetrics International
This custom, miniature, dual axis wireless sensor measures both torque and thrust (axial force). Two super miniature strain gage transmitters, housed within the sensor body, are powered inductively. Onboard sensor excitation and signal conditioning is also contained within the transmitters.
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Product
T-Rosette Strain Gauges
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Tee Rosette Strain Gages are for measuring orthogonal strains when the principle directions of stress are known. All patterns have two grids oriented at 0° and 90° angles.
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Product
Button Load Cell
3000 Series
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Button Load Cells are strain gage based transducers with temperature compensation and excellent overall performance. This type provides a range of capacities up to 150 kN or 30 klb with better than ±0.5% (full scale) non-linearity. Three tapped holes are provided on the underside for ease of mounting. Fully welded cover, amplified and digitised versions are available on request.
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Averaging Extensometers for ASTM D5656 Shear Tests
Model 4013
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Jinan Testing Equipment IE Corporation
The Model 4013 extensometer meets the requirements of ASTM D5656 for measuring the strain properties of an adhesive in shear. It uses different contact point spacing compared to the extensometer shown in D5656. This makes it much easier to mount and eliminates the slippage problems associated with the design shown in the ASTM standard. The Model 4013 is available with all of Epsilon’s temperature configurations. It has a 3.0 mm (0.12 inches) full scale measuring range. The conical point contacts included with the extensometer are made from tungsten carbide.The Model 4013 extensometers are strain gaged devices, making them compatible with any electronics designed for strain gaged transducers. Most often they are connected to a test machine controller. The signal conditioning electronics for the extensometer is typically included with the test machine controller or may often be added. In this case the extensometer is shipped with the proper connector and wiring to plug directly into the electronics. For systems lacking the required electronics, Epsilon can provide a variety of solutions, allowing the extensometer output to be connected to data acquisition boards, chart recorders or other equipment.
