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Single Channel Noise Canceling
The single channel FOMRI system is our basic noise canceling microphone
for MRI environments. Based on Optoacoustics’ advanced optical sensor
MEMS technology, this system is ideal for use with any noise reduction
headset and easily supplements any MRI equipment.
Single Channel Features
- Clear communications during MRI scans
- Complete EMI/RFI immunity means no effect on MR imaging
- Inherent noise canceling capability
- Open membrane construction provides analog signal output noise reduction (4.8 – 6 dB)
- Supports both headset and flexible boom mounting configurations for maximum patient comfort
- Flexible signal outputs to medical hardware through separate audio unit, recorder or PC
- Enables optical fiber lengths from 20 to 100 meters without signal loss
Accessories
- Fitted disposable hygienic screens to remove pop noise and enable exact
FOMRI distance and orientation to patients mouth (100 pack)
- Zip coated fiber optical extension cord at any length
Specifications
| Polar Pattern |
Figure 8 |
| Frequency Response |
50-4,000 Hz |
| Directional Index |
4.8 dB |
| Maximum Acoustic Pressure |
130 dB SPL |
| Supply Voltage |
9-12VDC |
| Power Consumption |
2.5W |
| Current Drain |
80 mA +/- 10% |
| Operating Temperature |
50 to 122° F (10 - 50° C) |
| Storage Temperature |
32 to 140° F (0 - 60° C) |
| Humidity - 1000 hours |
Up to 95% RH at 104° F |
| MTFB |
>100,000 hours |
| Microphone Material |
Delrin |
| Base Mount Dimensions |
2.36"/2.36"/1" (60/60/25 mm) |
| Weight |
2.1 oz (160 g) |
| Gooseneck Boom Length |
11.8" (300 mm) |
| Optical Cable Length |
32' (10 m) |
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FOMRI™ I
Basic Noise Canceling Optical Microphone
Applications
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Interactive patient communications
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Interactive patient communications
during fMRI scan procedures
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Speech Studies in fMRI
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Communications in auditory
fMRI
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Physician and radiologist communications
in interventional MRI environments
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Item Number:
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Description:
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| 03-501A0069 |
FOMRI™ I Noise Canceling Optical Microphone |
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