Bridge Pod Accessories

Bridge Pod Accessories

The ML301Bridge Pod is a low-cost signal conditioner designed to work with bridge-type transducers and PowerLab data acquisition systems. The Bridge Pod provides a stable +2.5 V excitation source for full-bridge strain-gauge transducers. A 300 Hz low-pass filter is built-in to reduce signal noise and a manual DC offset adjustment is provided. This bridge pods is suitable for typical measurements using strain-gauge transducers such as force, smooth muscle contractions, displacement, animal arterial and venous pressure.

Item# Description U.S. List Price Quantity
77-0119 Wide Range Force Transducer for use with Bridge Amps, Model MLT1030/D
77-0121 Reusable BP Transducer for use with Bridge Amps, Model MLT0380/D
77-0123 Sensitive Force Transducer (0-25g), Model MLT0202
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The ML301Bridge Pod is a low-cost signal conditioner designed to work with bridge-type transducers and PowerLab data acquisition systems. The Bridge Pod provides a stable +2.5 V excitation source for full-bridge strain-gauge transducers. A 300 Hz low-pass filter is built-in to reduce signal noise and a manual DC offset adjustment is provided. This bridge pods is suitable for typical measurements using strain-gauge transducers such as force, smooth muscle contractions, displacement, animal arterial and venous pressure.


System Compatibility:

The Bridge Pod connects to any PowerLab hardware units with Pod ports (8-pin DIN inputs). PowerLab and MacLab (except 4s, 8s and 16s) units without Pod ports require the FE305 Pod Expander.

The ML301 Bridge Pod is supported by the following versions of LabChart and Scope software:

WINDOWS

• LabChart v3.4.8 or later

• Scope v3.6.3 or later

MACINTOSH

• LabChart v3.6.3 or later

• Scope v3.6.3 or later

Note: Earlier software versions do not support Pods.

Theory of Operation:

The Bridge Pod provides excitation and signal amplification for strain-gauge transducers in a single device. An excitation voltage of 2.5 V is applied to the transducer with the transducer output signal being differentially amplified and then low pass filtered to remove high frequency signals. Offset adjustment is provided by a 10-turn potentiometer on the front of the Bridge Pod, allowing transducer offsets or pretension load signals to be removed before recording. The offset control provides ±200 mV of offset range (at input) on the low gain setting and ±20 mV of offset range (at input) on the high gain setting.

Stacking and Unstacking Pods:

Pods stack by clicking into place on top of each other. To separate stacked Pods, push the top Pod towards the back and then pull them apart from the back.
Specifications77-011977-012177-0123
Amplification Input Amplifier±1.25%See product page for complete specificationsSee product page for complete specifications
Body Length EnglishSee product page for complete specifications6.6 in2.8 in
Body Length Metric76 x 13 mm2 mm70 mm
Body Width English3 x 0.51 in0 - 9 V DC1.4 in
Body Width Metric0.43 mV/g wt300 Ω35 mm
Bridge Resistance0.24 mV/g wt<4 µA at 250 V AC, 60 Hz624 Ω
Cable Length English0.18 mV/g wt3 in6.6 ft
Cable Length Metric0.15 mV/g wt75 mm2 m
Connector9.0 mV/g wtMLT0380/D8-pin DIN
Displacement Range2.64 x 0.98 x 0.98 in-80 to +380 mmHg±0.03 mm
Excitation67 x 25 x 25 mm10 to +60 °C5 to 10 V DC
Model9.5 ft5-pin mini audioMLT0202
Non linearity and Hysteresis2.9 m3000 Ω±0.57 % full scale
Operating Range8-pin DIN10 to 25 g wt
Packagegauge (g) 1.04g+1 blade 1.20, g+2 blades or more >1.25Data Acquisition1
Product Family9.84 in5 ?V/V/mmHgData Acquisition
Resolution250 mm-20 to +85 °CInfinite
Resonant FrequencyCase - anodized aluminium

Blades - stainless steel
18 g (without cable)215 Hz (Typical)
Sensitivity300 g wt0.98 in(full range) 100 mV/V
Weight500 g wt25 mm162 g