Biomechanics Gait Analysis Lab - Biomedical Engineering ...

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IMPORTANT SAFETY INSTRUCTIONS Accurate gait measurements from the footswitch and FSR insoles can be obtained reliably when done properly. Please read the appropriate sections of the Biomechanics Gait Analysis Laboratory Owner’s Manual thoroughly before performing any of the laboratory exercises. 1. Do not tamper with the transmitter or receiver. Any tampering with the contents of these devices may damage the quality of the data transmission/reception. 2. Do not leave the transmitter and receiver powered on for long periods of time when they are not in use. This will drain the batteries of their charge. 3. Do not tamper with the footswitch or FSR insoles. Any tampering with the contents of these devices may damage the sensors as well as the quality of data measurements. 4. Make certain that the 5-pin LEMO male connector from the footswitch insole and 4-pin LEMO male connector from the FSR insole are inserted into the counterpart LEMO female connectors correctly (make sure to line up the red dot on the male to the red area on the female). 5. Ensure the footswitch or FSR insole is placed correctly inside of the Subject’s shoe or taped to the bottom of the Subject’s foot. 6. When performing either the FSR or footswitch insole laboratory exercise, be sure to shorten and secure the connector cables to avoid a tripping hazard. 7. Only insert the appropriate 9 Volt and 3 Volt batteries into the transmitter. 8. Do not alter the footswitch or FSR data analysis LabVIEW program. 9. Be sure to properly connect the footswitch data wires from the receiver into the digital data inputs and the FSR data wires into the analog data inputs on the National Instruments BNC-2021 device. Page 2
PARTS AND ACCESSORIES The following parts and accessories are included with the Biomechanics Gait Analysis Laboratory: • Owner’s Manual • Black Adjustable Fanny Pack • 2 Male, Size 9, Footswitch Insoles (Right and Left) • 2 Female, Size 7, Footswitch Insoles (Right and Left) • 2 Male, Size 9, FSR Insoles (Right and Left) • 2 Female, Size 7, FSR Insoles (Right and Left) • Black Transmitter Box • Black Receiver Box • 2 Nine Volt Batteries • 2 Three Volt Lithium Batteries • National Instruments PXI-1031 device equipped with PXI-8330 and PXI-6040E device cartridges • National Instruments BNC-2120 device • 3 National Instruments LabVIEW Computer Programs: 1. Gait Analysis Footswitch Insoles System 2. Men’s Force Sensitive Resistor (FSR) Insoles System 3. Women’s Force Sensitive Resistor (FSR) Insoles System Page 3
Page 1: Biomechanics Gait Analysis Lab Oper
Page 5 and 6: Table of Contents Section Page Numb
Page 7 and 8: The new laboratory utilizes a numbe
Page 9 and 10: Figure 4: FSR Insole The FSR’s ar
Page 11 and 12: Figure 8: Transmitter Box Figure 9:
Page 13 and 14: The receiver connects directly to t
Page 15 and 16: Figure 15:Footswitch Insoles LabVIE
Page 17 and 18: Figure 17: Men’s FSR Insoles LabV
Page 19 and 20: Figure 19:Womens FSR Insoles LabVIE
Page 21 and 22: 3. Place the fanny pack around the
Page 23 and 24: Figure 25: Footswitch Output Wire C
Page 25 and 26: 14. Press the OFF button on the blo
Page 27 and 28: Figure 30: Corrected Toe Sensor Dat
Page 29 and 30: 2. Place the transmitter box into t
Page 31 and 32: 8. Mark a start line on the floor w
Page 33 and 34: Battery Replacement 1. Turn both of
Page 35 and 36: 5. Place the 3v lithium battery in
Page 37 and 38: - Dry the cleaned area with a soft
Page 39 and 40: 3. Humidity The device should not b
Page 41 and 42: The footswitches and force sensitiv
Page 43 and 44: The sensors act as a force sensing
Page 45 and 46: 10-bit analog-to-digital conversion
Page 47 and 48: Figure 38: Microprocessor Circuit f
Page 49 and 50: Metric A L M S1 S2 mm. 9.5 35.0 25.
Page 51 and 52: to supply a very small voltage (les
Page 53 and 54:
A B C D Figure 45: Male LEMO Connec
Page 55 and 56:
Telemetry: Transmitter Set-up Figur
Page 57 and 58:
Figure 50: Receiver Circuit schemat
Page 59 and 60:
The 418MHz transmitter/encoder chip
Page 61 and 62:
Analog Inputs Digital Inputs Figure
Page 63 and 64:
4. Trouble-Shooting Problem Possibl
Page 65 and 66:
4- If no output coming out of the F
Page 67 and 68:
7. If the footswitches and the FSR'
Page 69 and 70:
10. If LabVIEW program is not worki
Page 71 and 72:
13. If the male LEMO connector is n
Page 73 and 74:
16. If LabVIEW program still not wo
Page 75 and 76:
Page 75
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20. If the circuit is working fine
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Biomechanics Gait Analysis Lab - Biomedical Engineering ...

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