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Device Stimulus Output Comparison - Test 1

Frequency Setting:2,000 Hz.
Intensity Setting:1.50 mAmps.
Skin Simulation Load:5,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 1.5 milliAmperes, 2,000 Hertz and the outputs are connected to a 5,000 Ohm resistor. The output voltage is measured with the sampling rate set to 50,000 kHz, 50 of the 5,000 samples acquired are shown here. The output current is obtained by dividing the output voltage by 5,000 Ohms. The Neurometer® CPT/C output is a sine wave with a peak value of 1.5039 milliAmperes. The Medi-Dx 7000 output is an undefined waveform with a peak value of 0.441 milliAmperes.

Device Stimulus Output Comparison - Test 2

Frequency Setting:2,000 Hz.
Intensity Setting:9.99 mAmps.
Skin Simulation Load:5,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 9.99 milliAmperes, 2,000 Hertz and the outputs are connected to a 5,000 Ohm resistor. The output voltage is measured with the sampling rate set to 50,000 kHz, 50 of the 5,000 samples acquired are shown here. The output voltage is obtained by multiplying the measured voltage by the attenuation factor. Then dividing the calculated output voltage by 5,000 Ohms to obtain the output current (appendix #2). The Neurometer® CPT/C output is a sine wave with a peak value of 9.96 milliAmperes. The Medi-Dx 7000 output is an undefined waveform with a peak value of 4.47 milliAmperes.

Device Stimulus Output Comparison - Test 3

Frequency Setting:250 Hz.
Intensity Setting:1.50 mAmps.
Skin Simulation Load:5,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 1.5 milliAmperes, 250 Hertz and the outputs are connected to a 5,000 Ohm resistor. The output voltage is measured with the sampling rate set to 25,000 kHz, 201 of the 1200 samples acquired are shown here. The output current is obtained by dividing the output voltage by 5,000 Ohms. The Neurometer® CPT/C output is a sine wave with a peak value of 1.51 milliAmperes. The Medi-Dx 7000 output is a square wave with a peak value of 0.605 milliAmperes.

Device Stimulus Output Comparison - Test 4

Frequency Setting:250 Hz.
Intensity Setting:9.99 mAmps.
Skin Simulation Load:5,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 9.99 milliAmperes, 250 Hertz and the outputs are connected to a 5,000 Ohm resistor. The output voltage is measured with the sampling rate set to 25,000 kHz, 201 of the 5,000 samples acquired are shown here. The output voltage is obtained by multiplying the measured voltage by the attenuation factor. Then dividing the calculated output voltage by 5,000 Ohms to obtain the output current (appendix #2). The Neurometer® CPT/C output is a sine wave with a peak value of 9.86 milliAmperes. The Medi-Dx 7000 output is square wave with a peak value of 5.55 milliAmperes.

Device Stimulus Output Comparison - Test 5

Frequency Setting:5 Hz.
Intensity Setting:1.50 mAmps.
Skin Simulation Load:5,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 1.5 milliAmperes, 5 Hertz and the outputs are connected to a 5,000 Ohm resistor. The output voltage is measured with the sampling rate set to 8,000 kHz, 3,200 of the 5,000 samples acquired are shown here. The output current is obtained by dividing the output voltage by 5,000 Ohms. The Neurometer® CPT/C output is a sine wave with a peak value of 1.46 milliAmperes. The Medi-Dx 7000 output is an undefined waveform with a peak value of 0.874/0.580 milliAmperes (i.e. the output is not symmetrical).

Device Stimulus Output Comparison - Test 6

Frequency Setting:5 Hz.
Intensity Setting:9.99 mAmps.
Skin Simulation Load:5,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 9.99 milliAmperes, 5 Hertz and the outputs are connected to a 5,000 Ohm resistor. The output voltage is measured with the sampling rate set to 8,000 kHz, 3,200 of the 5,000 samples acquired are shown here. The output voltage is obtained by multiplying the measured voltage by the attenuation factor. Then dividing the calculated output voltage by 5,000 Ohms to obtain the output current (appendix #2). The Neurometer® CPT/C output is a sine wave with a peak value of 9.56 milliAmperes. The Medi-Dx 7000 output is an undefined waveform with a peak value of 6.86/5.17 milliAmperes (i.e. the output is not symmetrical).

Device Stimulus Output Comparison - Test 7

Frequency Setting:2000 Hz.
Intensity Setting:1.50 mAmps.
Skin Simulation Load:10,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 1.5 milliAmperes, 2,000 Hertz and the outputs are connected to a 10,000 Ohm resistor. The output voltage is measured with the sampling rate set to 50,000 kHz, 50 of the 5,000 samples acquired are shown here. The output voltage is obtained by multiplying the measured voltage by the attenuation factor. Then dividing the calculated output voltage by 10,000 Ohms to obtain the output current (appendix #2). The Neurometer® CPT/C output is a sine wave with a peak value of 1.49 milliAmperes. The Medi-Dx 7000 output is an undefined waveform with a peak value of 0.335 milliAmperes.

Device Stimulus Output Comparison - Test 8

Frequency Setting:2000 Hz.
Intensity Setting:9.99 mAmps.
Skin Simulation Load:10,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 9.99 milliAmperes, 2,000 Hertz and the outputs are connected to a 10,000 Ohm resistor. The output voltage is measured with the sampling rate set to 50,000 kHz, 50 of the 5,000 samples acquired are shown here. The output voltage is obtained by multiplying the measured voltage by the attenuation factor. Then dividing the calculated output voltage by 10,000 Ohms to obtain the output current (appendix #2). The Neurometer® CPT/C output is a sine wave with a peak value of 10.29 milliAmperes. The Medi-Dx 7000 output is an undefined waveform with a peak value of 3.39 milliAmperes.

Device Stimulus Output Comparison - Test 9

Frequency Setting:250 Hz.
Intensity Setting:1.50 mAmps.
Skin Simulation Load:10,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 1.5 milliAmperes, 250 Hertz and the outputs are connected to a 10,000 Ohm resistor. The output voltage is measured with the sampling rate set to 25,000 kHz, 201 of the 1,200 samples acquired are shown here. The output voltage is obtained by multiplying the measured voltage by the attenuation factor. Then dividing the calculated output voltage by 10,000 Ohms to obtain the output current (appendix #2). The Neurometer® CPT/C output is a sine wave with a peak value of 1.47 milliAmperes. The Medi-Dx 7000 output is a square wave with a peak value of 0.410 milliAmperes.

Device Stimulus Output Comparison - Test 10

Frequency Setting:250 Hz.
Intensity Setting:9.99 mAmps.
Skin Simulation Load:10,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 9.99 milliAmperes, 250 Hertz and the outputs are connected to a 10,000 Ohm resistor. The output voltage is measured with the sampling rate set to 25,000 kHz, 201 of the 1,200 samples acquired are shown here. The output voltage is obtained by multiplying the measured voltage by the attenuation factor. Then dividing the calculated output voltage by 10,000 Ohms to obtain the output current (appendix #2). The Neurometer® CPT/C output is a sine wave with a peak value of 9.79 milliAmperes. The Medi-Dx 7000 output is a square wave with a peak value of 3.80 milliAmperes.

Device Stimulus Output Comparison - Test 11

Frequency Setting:5 Hz.
Intensity Setting:1.50 mAmps.
Skin Simulation Load:10,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 1.5 milliAmperes, 5 Hertz and the outputs are connected to a 10,000 Ohm resistor. The output voltage is measured with the sampling rate set to 8,000 kHz, 3,200 of the 5,000 samples acquired are shown here. The output voltage is obtained by multiplying the measured voltage by the attenuation factor. Then dividing the calculated output voltage by 10,000 Ohms to obtain the output current (appendix #2). The Neurometer® CPT/C output is a sine wave with a peak value of 1.44 milliAmperes. The Medi-Dx 7000 output is an undefined waveform with a peak value of 0.662/0.385 milliAmperes (i.e. the output is not symmetrical).

Device Stimulus Output Comparison - Test 12

Frequency Setting:5 Hz.
Intensity Setting:9.99 mAmps.
Skin Simulation Load:10,000 Ohms
Neurometer® CPT/C Stimulus Medi-Dx 7000 Stimulus
Neurometer CPT Stimulus Output Graph Medi-Dx Stimulus Output Graph
The output controls for each unit are set for 9.99 milliAmperes, 5 Hertz and the outputs are connected to a 10,000 Ohm resistor. The output voltage is measured with the sampling rate set to 8,000 kHz, 3,200 of the 5,000 samples acquired are shown here. The output voltage is obtained by multiplying the measured voltage by the attenuation factor. Then dividing the calculated output voltage by 10,000 Ohms to obtain the output current (appendix #2). The Neurometer® CPT/C output is a sine wave with a peak value of 9.47 milliAmperes. The Medi-Dx 7000 output is an undefined waveform with a peak value of 4.96/3.36 milliAmperes (i.e. the output is not symmetrical).

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