Strain Gages
measure of displaced surface elements.
See Also: Strain Gauges, Strain Gage Amplifiers, Strain Gage Signal Conditioners, Strain
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Product
Fracture Mechanics Clip-On Gages
Model 3541
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Jinan Testing Equipment IE Corporation
The Model 3541 is designed for determination of fracture mechanics parameters such as JIC, KIC, R-curve, fatigue crack growth rate (da/dN), and testing to standards such as E1820, E399, E647, etc. These COD gages conform to the requirements of E1820 (the replacement for E813 and E1737) for JIC and R-curve determination. Special configurations are available to meet the requirements of ASTM E399 for fracture toughness (please consult the factory for these configurations). In addition, the modified groove design complies with E1820 tests where greater stability and accuracy results from the sharper groove root. Clip-on gages are used for a variety of fracture mechanics tests, including compact tension, arc shaped, disk shaped, bend specimens or other specimen geometries in compliance with ASTM and other standards organization’s test methods. Clip-on gages can be used directly on test specimens where the knife edges are integral with the test specimen or, alternately, with optional bolt-on knife edges mounted on the test specimen.The Model 3541 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
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
sbRIO-9236, Non-Enclosed, 10 kS/s/channel, 350 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module
781580-01
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Non-Enclosed, 10 kS/s/channel, 350 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module - The sbRIO‑9236 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 sbRIO‑9236 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. Non-enclosed modules are designed for OEM applications.
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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
High Elongation Extensometers
Model 3800
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Jinan Testing Equipment IE Corporation
The main body of this unique extensometer remains stationary during testing, held in position by the adjustable magnetic base included. Only the very light, small traveling heads move as the sample elongates during a test. These attach to the sample with small spring clips. Each head pulls a cord out from the extensometer as the head moves. These models use high precision, low friction potentiometers, and, as a result, have a wide range of factory selectable outputs. The extensometer is driven by an excitation voltage and has output proportional to the input. They can be provided with high level outputs (approximately 2-8 VDC) or ones that mimic strain gaged devices (2-4 mV/V). When set to mimic strain gaged extensometers, the Model 3800 can be used with virtually any signal conditioning electronics designed for strain gaged sensors. The potentiometers employ a hybrid wire wound around conductive plastic, which provides excellent long term stability. The output from the extensometer is readily interfaced with most existing test controllers, and may be directly input to data acquisition systems and chart recorders. Please let us know at the time of order what type of output and connector you require.
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Product
Strain Gage Testing
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Response Dynamics Vibration Engineering, Inc.
Although strain measurement is often a key part of a root cause diagnosis, our analyses often also involve measurements of other parameters such as acceleration, relative displacement, pressure, temperature, flow, speed, load, dynamic stiffness, etc, to explore multiple parameters that may have a cause/effect relationship with the problem at hand. These measurements form part of a fact based hypothesis for the cause of the problem at hand. We use stain gauge testing and/or stain modeling and analysis, in conjunction with our structural dynamics expertise to characterize all the important pieces of the puzzle that come into play with dynamic strain issues (See Diagnostic Testing).
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Product
Full Bridge Thin Beam Force Sensors
TBS SERIES
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The TBS Series thin beam force sensors many different parameters found in medical instrumentation, home appliances, process control, robotics, and automotive are exceptionally suited for small load measurements. They are designed to measure and many other high volume applications. A specially developed integrated strain gage includes all balancing, compensating and conductive elements and is laminated to the beam to provide excellent stability and reliability.
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Product
Strain Gauge Test
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This test measures the structural stresses induced in equipment when subjected to various environmental and operational loads. Strain gages, which are resistive devices whose outputs are proportional to the amount that they are deformed under strain, are placed at selected locations to yield stress levels which may then be compared to design allowable limits.
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Product
Wireless
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Equipped with Bluetooth technology, our wide range of wireless force and torque sensors allows you to take measurements remotely, connected to one of our displays or directly to a PC. Our sensors offer a data transfer rate of up to 1,000Hz and an open-field range of 65 ft. We can adapt this technology to any strain gage sensor.
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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
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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
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
PC/104 8-Channel Smart Sensor Interface
518
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Measures thermocouples, RTDs, strain gages, thermistors, 4-20 mA, voltage and resistance 8 high-accuracy differential input channels Integral sensor excitation Exclusive pulsed excitation minimizes sensor self-heating Configurable sensor type per channel Fully electronic calibration Low power
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Product
4 Channels, Strain Gauge Measurement
SG1
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Module SG1 is NAI’s latest generation Strain Gage Measurement Module. This intelligent, four-channel module is used on our Multifunction Embedded I/O Boards and Single Board Computers (SBCs).
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Product
Load Cell Displays
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We carry a wide range of digital displays for strain gage load cells. There are many options available to our load cell displays such as analog outputs to interface with a PLC, digital outputs for computer interfaces, I/O and relay outputs to control batching and checkweighing scales, and wireless load cell indicators.
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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
PTI/PMAC/USB Sensor System Examples
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*System for any strain gage based sensor*Compatible with every sensor is this catalog*Process monitoring*Process control*Portable datalogging*Portable, compact, and lightweight
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Product
sbRIO-9235, Non-Enclosed, 10 kS/s/channel, 120 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module
781579-01
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Non-Enclosed, 10 kS/s/channel, 120 Ω Quarter-Bridge Strain Gage, 8-Channel C Series Strain/Bridge Input Module - The sbRIO‑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 sbRIO‑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. Non-enclosed modules are designed for OEM applications.
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Product
Axial Extensometer
Model 3542
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Jinan Testing Equipment IE Corporation
These extensometers are designed for testing a wide range of materials, including metals, plastics, composites and ceramics. All will work in both tension and compression. The dual flexure design makes them very rugged and insensitive to vibrations, which permits higher frequency operation.They come standard with Epsilon’s quick attach kit, making it possible to mount the extensometer on the test specimen quickly and easily with one hand. The quick attach kit can be removed, allowing mounting of the extensometer with springs or rubber bands.The Model 3542 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.For gauge lengths 100 mm (4 inches) or greater see Model 3542L.
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Product
16-Channel Bridge Signal Conditioning Unit
ProDAQ 5716
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The ProDAQ 5716 is a 1U high rack-mountable signal conditioning box for standard 19 in. racks. It provides signal conditioning for up to 16 strain gage or ICP sensors. Either one ProDAQ 3416 16-Channel ADC Function Card or up to two ProDAQ 3424 8-Channel 24-bit Sigma-Delta ADC Function Cards can be connected to the unit.
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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
C Series Universal Analog Input Module
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The C Series Universal Analog Input Module helps you perform multi-purpose measurements. This module includes built-in support for accelerometer, powered sensor, full-bridge, and voltage measurements as well as quarter-bridge, half-bridge, 60 V, and current measurements using measurement-specific adapters. You also can choose options to measure signals from sensors such as strain gages, resistance temperature detectors (RTDs), thermocouples, load cells, and other powered sensors.The C Series Universal Analog Input Module includes the NI-DAQmx driver and configuration utility that simplify configuration and measurements. NI-DAQmx supports NI programming environments as well as Python, ANSI C, C#.NET, and MathWorks MATLAB® software.
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Product
Low Profile Compression Only Load Button Load Cell with Mounting
LBM SERIES
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The LBM Series (Load Button) load cells are offered for compression only applications where space is limited. This load button is a direct replacement for many of the same type and bolt patterns currently used in the industry. The matching surface must be flat and at least 2 inches in diameter. The loading diameter is slightly convex for accurate load distribution. Eight threaded mounting holes are provided on the bottom surface for fastening down from beneath. These sensors are manufactured from heat treated 17-4ph stainless steel, and the sensing element incorporates bonded foil strain gages of the highest quality. They are sealed for protection against most industrial environments.
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Product
Strain Sensors
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Conventional strain sensors are based on strain gage technology. In order to effectively measure the strain values in a force or load measurement application, a full, 4 element strain gage bridge circuit is utilized. The configuration is known as a Wheatstone Bridge Circuit. A Wheatstone Bridge has a very linear output in it’s midrange. That being considered +100% to -100% of range. Unfortunately, a Wheatstone Bridge becomes non-linear above the upper and lower extremes of range. Therefore, significant errors can result above the end points when attempting to take precision measurements. It is particularly important to take accurate measurements in some R&D or control applications. To avoid the mentioned error issues, PCB manufactures quartz piezoelectric strain sensors that output the same mV/microstrain sensitivity throughout the entire useful range. Thus, accuracy is improved and control requirements are enhanced that may occur at positive extremes of the measurement range. The models RHM240 and model 740B02 series sensors are the strain sensors for these applications.
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Product
Rotating Dual Shaft Torque Sensors
RST SERIES
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The RST- Series is our low range rotating torque sensors that are available in eleven full scale ranges of 10 through 30K inch pounds. The sensing element incorporates bonded foil strain gages of the highest quality along with coined silver slip ring and silver brushes for data transmission. The WR2, Flexural Natural Frequency, and Torsional Stiffness values as stated in the Dynamic Characteristics box below, are approximate and the tabulated data pertains to the torque pickup only, and does not include the effects of couplings or other rotating masses that would be part of a dynamic system.
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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
Torque Verification
90229
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SDI’s 90229 is designed for calibrating tools used to apply torque including electric and pneumatic power tools, torque sensors, hand and click wrenches. The strain gage based reaction torque sensors in the bench-mount housing remain stationary while torque is applied. The housing dis-assembles by removing two snap pins, allowing the user to easily change socket sizes and capacities.
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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
SIRIUS Waterproof
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SIRIUS Waterproof - Rugged and Modular Data Acquisition SystemExtremely rugged (IP67 degree of protection) and fully isolated rugged data acquisition system for the most demanding testing in harsh environments. High-precision, high-dynamic, and high-bandwidth for all types of analog signals from IEPE to strain gages.
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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
NI-9219, 100 S/s/channel, 4-Channel C Series Universal Analog Input Module
779781-02
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100 S/s/channel, 4-Channel C Series Universal Analog Input Module - The NI‑9219 is designed for multipurpose testing. With the NI‑9219, you can measure signals from sensors such as strain gages, resistance temperature detectors (RTDs), thermocouples, load cells, and other powered sensors, as well as make quarter-bridge, half-bridge, and full-bridge current measurements, with built-in voltage and current excitation. Each channel is individually selectable, so you can perform a different measurement type on each channel.
