Neurologgers of the second generation were designed to record a large set of biological variables (up to 4 analog channels) in their large integrated memory (1 GB or, 2 GB), having size and weight suitable for attachment to a head of a mouse or a back of a zebra finch (small song bird weighing 14-17 g). The minimal weight of recording module including two ZA5 35 mAh batteries is 1.3 g, the size is 22×15×5 mm.
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3-D accelerometer Connector for |
4 neurophysiological channels with sampling rate up to 20 kHz for EEG, ECG, EOG, EMG, LFPs and neuronal activity. 3-D accelerometer Infrared (IR) synchronization with external equipment. The recorder weight in the most complete configuration is 1.71 g + ~1 g typical battery weight makes total weight 2.71 g. The battery holder can add 0.63 g. |
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Neurologger with 3D accelerometer, 3D gyroscope and
3D magnetometer for Built-in IR receiver is used not only for synchronization with external erquipment, |
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| Only 3-D accelerometer, 256 MB memory, weight 1.28 g |
The lightest version: electrodes are soldered directly to the board, clip connector for data downloading, 1 GB, weight 0.95 g |
The same as before but with the connector for the electrodes, weight 1.05 g |
Micro board with 3-D accelerometer is added, weight of recording combination 1.61 g |
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Water-proof ECG recorder for marine birds IR receiver is replaced by magnetic sensor. Putting permanent magnet in the vicinity of the sensor creates a label in the logger record. Memory 1 GB, rechargeable battery 3.7V, 240 mAh. The battery is sufficient for 4 days. Total weight of encapsulated logger 20 g. |
Neurologger 2A can record:
Neurologger can be implanted to record brain activity, for instance, in large ruminants, or it can be placed in a rigid protective waterproof casing to record in marine environments. Just ask! |
Attention current Neurologger 2 users! NEW: Neurologger 2A/2B received
Neurologger 2A with remote ON/OFF
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| Neurologger 2 on the head of a homing pigeon | Neurologger 2 on the head of a homing pigeon. GPS logger is attached at the back |
Technical data of the Neurologger 2A/2B
Number of channels: |
4 with 2 ref. inputs |
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ADC resolution: |
10 bit |
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Input range is factory-adjustable. Typical ranges are: |
+/- 500 μV for EEG |
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Neurologger mechanical dimensions (without batteries): |
22x15x3 mm 3 |
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Total mechanical dimensions (Neurologger, batteries): |
22x15x5 mm 3 |
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Weight of 1GB Neurologger board: |
0.945 g |
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Weight of two 80mAh Renata ZA10 batteries: |
0.635 g |
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Weight of head connector: |
0.255 g |
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Weight of protective cover: |
0.170 g |
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Weight of battery connecting wires: |
0.050 g |
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Total weight: |
2.055 g |
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Battery life time: |
EEG logger, 4 channels, |
1 day 9 h |
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Single unit logger, 4 ch x 9.6 ksps |
23 h |
1 GB memory data filling time: |
4 channels, 100 sps |
20 days 17 h |
4 channels, 200 sps |
10 days 8 h |
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4 channels, 400 sps |
5 days 4 h |
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4 channels, 1600 sps |
1 day 7 h |
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4 channels + 3D accelerometer, 100 sps |
13 days 19 h |
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4 channels + 3D accelerometer, 200 sps |
6 days 21 h |
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4 channels + 3D accelerometer, 400 sps |
3 days 10 h |
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4 channels + 3D accelerometer, 1600 sps |
20 h 42 min |
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4 channels, 9.6 ksps (with or w/o 3D accelerometer) |
5 h 10 min |
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4 channels, 19.2 ksps (with or w/o 3D accelerometer) |
2 h 35 min |
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4 channels, 33.3 ksps (with or w/o 3D accelerometer) |
1 h 29 min |
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1 channels, 200 ksps (with or w/o 3D accelerometer) |
59 min 39 s |
1 GB data downloading time: |
27 min 2 s |
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Interface: |
3 SPI, 8Mbps, converted to USB via custom adapter, power supply, one CMOS digital input for events recording (shared with SPI pin) |
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Data format: |
Custom |
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Neurologger is a registered trademark.
Protected by U.S. patents #8,160,688; #9,492,085; #11,134,864. Other patents pending.
