Force and Compression Gauges

A Leading South African Test and Measurement Instruments Supplier

“For Good Measure”^®

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T.M.I.

Test and Measurement Instruments C.C.

CK 1985/007464/23

“Tomorrow’s Instruments Today” — “For Good Measure” ^®

TMI, Established—1982

English, Afrikaans, Portuguese Speaking. Master/Visa Credit Cards

Force Gauges

Part No: FG-5005

5000g/oz/Newton, Tension/Compression 4-digit LCD with backlight, Positive / Reverse Display, Peak Hold, RS2323.

Part No: FG-5020

20Kg/LB/Newton, Tension/Compression 4-digit LCD with backlight, Positive / Reverse Display, Peak Hold, RS2323.

Lutron

Part No: FG-5100

100Kg/LB/Newton, Tension/Compression 5-digit LCD with backlight, Positive / Reverse Display, Peak Hold, RS2323.0

Lutron

Accessories

Part No: WG-01

Wedge grip, Used to hold the Tested Material (For FS1001)

Lutron

Part No: FS--1001

Test Stand for Tension & Compression Analysis (For FG5000A/FC20Kg)

Lutron

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Notes on Force and Torque Gauges.

Force and torque gauges are used to measure force, weight or torque. Some can measure force and torque by changing the sensor / transducer. Force or weight measurements include tension or compression loading, units are lbs., Newtons, etc. Torque measuring instruments display torque units (in-oz, ft-lbs etc.).

Important parameters to consider when specifying force and torque instruments are the force measurement range and accuracy and the torque measurement range and accuracy. Sensor or transducer interfaces for force and torque instruments include strain gauge and piezoelectric. For strain gage devices, strain gages (strain-sensitive variable resistors) are bonded to parts of the structure that deform when making the measurement. These strain gages are typically used as elements in a Wheatstone bridge circuit, which is used to make the measurement. For piezoelectric devices, a piezoelectric material is compressed and generates a charge that is measured by a charge amplifier. The analog bandwidth is another important specification to consider. The bandwidth is the frequency range over which the device meets its accuracy specifications. Accuracy is degraded at lower and lower frequencies unless the device is capable of dc response, and at higher frequencies near resonance and beyond, where its output response rolls off. Frequencies in the database are usually the 3dB rolloff frequencies.

Common configurations for force and torque instruments include handheld, portable, modular and battery powered. Measurement features of force and toque instruments include tare, limits or set points, peak hold, controller functionality, temperature compensation, biaxial measurement, and triaxial measurement. Units with tare can zero out reading to measure differences, for weighing. Limits and set points include hi – lo. Peak hold shows or holds a peak measurement value. Controller functions include set limits, regulator, P/PI/PID etc. Instruments with temperature compensation have software or adjustments for compensating for variations in temperature that may cause measurement errors. Force and torque instruments with biaxial measurement have an accelerometer capable of measurement along two, usually orthogonal, axes. Force and torque instruments with triaxial measurement have an accelerometer capable of measurement along three, usually orthogonal, axes.

Force and torque instruments usually have displays for users to interface with the unit. Common types of displays include analog or dial displays, digital readouts, and video displays. Programmability is achieved through manual operation, front panels, or computer interfaces. Instruments with software support have software specifically for running on host computer, which can be PC or MAC.

Advanced searching capabilities for force and torque instruments include outputs, digital resolution and sampling frequency. General features found on force and torque instruments include filters, event triggering, built-in self-calibration, self-test diagnostics, and extreme environment construction. Force and torque instruments often come with data storage in nonvolatile memory, hard drives or removable storage. Very often these instruments are also compatible on a network.

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Force and Compression Gauges

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Force Gauges with Data Logging feature:

Part No: FG-6005 SD

5000g/oz/Newton, Tension/Compression 4-digit LCD with backlight, Positive / Reverse Display, Peak Hold, RS2323, with Data Logger placing 1000 results on SD.

Part No: FG-6020SD

20Kg/LB/Newton, Tension/Compression 4-digit LCD with backlight, Positive / Reverse Display, Peak Hold, RS2323, with Data Logger placing 1000 results on SD.

Lutron

Part No: FG-6100SD

100Kg/LB/Newton, Tension/Compression 5-digit LCD with backlight, Positive / Reverse Display, Peak Hold, RS2323, with Data Logger placing 1000 results on SD.