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FT-302 Force Transducer
Technical
Note
iWorx Systems, Inc.
www.iworx.com
LabScribe is a trademark of
iWorx Systems, Inc.
©2015 iWorx Systems, Inc.
FT-302
Overview
The FT-302 is a high-sensitivity dual-range research grade force transducer
designed to measure forces in the 0.005 to 10 gram and 0 to 100 gram ranges.
The FT-302 uses a reflective photomicrosensor to measure minute deflections of
the beam under load. The deflection of the beam is less than a few hundred
microns, making the sensor very isometric. In addition, its unique optical
technology makes it resistant to drift and offers intrinsically low noise
characteristics. The FT-302's on-board amplifiers reduce gain and adjustment
requirements on connected recording amplifiers. The transducer is highly resistant
to mechanical damage; its body is machined from aluminum and mounts to a
standard ring stand or, with the handle removed, clamp mounts. The cable that
connects the FT-302 to the recording amplifier is detachable, allowing for multiple
cables to be configured for the user's choice of amplifiers. The FT-302 uses a
transducer input on an iWorx data acquisition system, or an amplifier such as the
ETH-256 or ETH-401.
How to Use the FT-302
To use the transducer, firmly secure it to a ring stand or other support. The long
axis of the transducer should be parallel to the work surface, the attachment hooks
should be pointing downward toward the work surface, and the cable connector
should be facing up. While alignment of the sensor with the work surface is not
critical, linearity and sensitivity will decrease if the transducer is tipped more than
30-40°.
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Related Manuals for iWorX FT-302
Summary of Contents for iWorX FT-302
- Page 1 FT-302 to the recording amplifier is detachable, allowing for multiple cables to be configured for the user's choice of amplifiers. The FT-302 uses a transducer input on an iWorx data acquisition system, or an amplifier such as the ETH-256 or ETH-401.
- Page 2 3) Once zeroed, calibrate the transducer. Typically this involves the use of two weights that are appropriate to the range in which you are recording. Calibration of the FT-302 Force Transducer 1) Type “No Weight” in the Mark box. Click Record, and press the Enter key to attach the comment to the recording.
- Page 3 OK button in the lower right corner of the window to activate the units conversion. In the 10 gram range, the FT-302 will deliver approximately 75 mV/gram at X1 gain and approximately one tenth of that in the 100 gram range. From the graphs in the technical data section of this manual you can see that the sensor is actually linear to about 14 g in the 10 g range and about 140 g in the 100 g range.
- Page 4 FT-302 Force Transducer conditioners in the lab. This means the FT-302 can be fitted with a variety of cables and is suited for a wide range of applications, including most smooth and striated muscle experiments. Linearity and Drift The drift for the FT-302 is 35mg/Hour in the 0-10g range and 350mg/Hour in the 100g range.
- Page 5 Storage The FT-302 can be stored in its shipping container or left in the rack where it is used. We recommend that the sensor be left powered whenever possible to avoid the warm up period when it is switched on cold.
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