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Response/Hand Force for MRI

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Response/Hand Force for MRI
Part #: TSD114-MRI

Subjects can indicate a response while in the MRI by squeezing this pump bulb by hand or applying pressure via foot, thigh, etc. to  The device is based on pneumatic principles of operation and has high accuracy for pressure measurements, on the order of ±1%. Includes one 10 meter polyethylene tube; additional polyethylene tube extensions are available from BIOPAC.

The TSD114-MRI consists of

  • Pump bulb (RXPUMPBULB-MRI)
    maximum diameter: 5.8 cm
    length: 11.1 cm
  • Pressure transducer (TSD104A)
  • Tubing (AFT30-XL)

MRI Use: MR Safe (see Specifications for components)

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Hand Force/Response MRI Transducer
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Part #: TSD114-MRI
Categories: MRI Magnetic Resonance Imaging - Research
Subcategories: Transducers - Research

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Pass the tubing from the chamber room through the waveguide to interface with the TSD104A Pressure Transducer in the Control room.

The output of the TSD114-MRI device is ultimately voltage; to obtain usable voltage output, the device requires amplification via BIOPAC’s DA100C. The TSD114-MRI has a signal output which is variable, and this output signal variability is linear to applied pressure in the squeeze bulb.

If the durable rubber pump bulb requires replacement, contact BIOPAC about RXPUMPBULB-MRI.


Using with third-party A/D converters

To use the TSD114-MRI with a third-party A/D converter, use DA100C and IPS100C.

DA100C amplifies and conditions the mV level signal coming from TSD114-MRI
IPS100C will supply isolated power to DA100C

High level output voltage (anywhere in the range of ±10 V, such as 0-5 V) can be obtained via the front panel of IPS100C, via 3.5 mm phono plug. This signal can be directed straight to the third-party A/D converter.

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