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PS25003 EPIC development kit user guide
Demonstration Kit Standard Components
PS25003
•
Control and interface box (CIB).
•
Control and interface box software (download from website).
•
USB cable.
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2xPS25013 connector cables.
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Flying lead (2m long), 4mm plug to crocodile clip.
•
Conductive sheet.
Demonstration Kit Sensor Options
The PS250003 is supplied with a choice of one of the following options:
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2x PS25101 sensors, or
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2x PS25102 sensors, or
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2x Single channel demonstration boards with EPIC sensors*, or
•
1x Dual channel demonstration board with two EPIC sensors*
*
Various EPIC sensors are available on these demonstrator boards.
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Table of Contents
Related Manuals for Plessey Epic PS25003
Summary of Contents for Plessey Epic PS25003
- Page 1 PS25003 EPIC development kit user guide Demonstration Kit Standard Components PS25003 • Control and interface box (CIB). • Control and interface box software (download from website). • USB cable. • 2xPS25013 connector cables. • Flying lead (2m long), 4mm plug to crocodile clip. •...
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Page 2: Table Of Contents
Page 2 of 23 Document number 291945 V5 User Guide Contents Introduction. Page 2 The EPIC sensors. The Control and Interface Box. The Control and Interface Box Software. System Requirements Software Installation Software Use Software Shutdown Example applications. Obtaining an electrocardiogram (ECG) signal Obtaining other physiological signals Non-contact ECG TERMS and CONDITIONS... - Page 3 Page 3 of 23 Document number 291945 V5 • 2x PS25101 sensors, or • 2x PS25102 sensors, or • 2x Single channel demonstration boards with EPIC sensors*, or • 1x Dual channel demonstration board with two EPIC sensors* Various EPIC sensors are available on these demonstrator boards PS25101 and PS25102: These are metal body sensors.
- Page 4 Page 4 of 23 Document number 291945 V5 PS25201B Compact Sensor Showing Front and Back These compact sensors are intended for surface mount in a finished system. This style of sensor is not directly suitable for connection to the Control/Interface Box and so these sensors are supplied on small demonstration boards that are terminated by a robust socket.
- Page 5 Page 5 of 23 Document number 291945 V5 Freq. Range (-3dB) Supplied Supplied Body Mounted Sensor Voltage Supplementary Channels Termination Sensor Quantity Style sensor Type Gain Component Lower Upper Contact / 200mH Cable + PS25101 Single Metal non- 10kHz contact Contact / 200mH Cable...
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Page 6: The Control And Interface Box
Page 6 of 23 Document number 291945 V5 Sensor options The Control and Interface Box (CIB) Control and Interface box The Control and Interface box (CIB) provides an easy interface for the evaluation of EPIC sensors with both analog outputs and also digitised output (USB) using the internal data acquisition (DAQ) card. - Page 7 Page 7 of 23 Document number 291945 V5 50Hz 50Hz POWER - POWER - LOW PASS - LOW PASS - GAIN - GAIN - NOTCH - NOTCH - 60Hz 60Hz DIFFERENTIAL DIFFERENTIAL INPUTS INPUTS OUTPUTS OUTPUTS FRONT Control and Interface box front panel •...
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Page 8: The Control And Interface Box Software
Page 8 of 23 Document number 291945 V5 A short specification of the control and interface box is: Parameter Units Notes Supply voltage – USB 2.0 Low pass filter Notch filter frequency 50/60 attenuation Analogue output impedance Data acq’n resolution Sampling rate kS/s... -
Page 9: Software Installation
Page 9 of 23 Document number 291945 V5 Software Installation The software can be downloaded from the customer portal found on the internet at: http://www.plesseysemiconductors.com/ Download and install the software before connection of the CIB to the computer. Follow the on-screen installation instructions. After installation has been performed a reboot of the system is required to complete the installation process. - Page 10 Page 10 of 23 Document number 291945 V5 The soft oscilloscope and data logger will now be displayed: Start-up Screen with CIB switched off – CIB data acquisition card is active. The CIB can now be switched on using the power switch on the CIB front panel. The red power LED should light.
- Page 11 Page 11 of 23 Document number 291945 V5 Initial Signal (ECG type) generated by two EPIC sensors, left and right hand. The software has the following controls: • Voltage Scale • Time Base • Offset and the following features: • Data Logging •...
- Page 12 Page 12 of 23 Document number 291945 V5 Voltage Scale This may be adjusted to increase or decrease the voltage (y) axis of the oscillogram: Offset This may be adjusted to apply an offset to the voltage (y) axis of the oscillogram:...
- Page 13 Page 13 of 23 Document number 291945 V5 Select Signals The Select Signals check boxes allow the displayed signals to be selected. The signal options are: • A-B This is a difference signal between the two sensors, A and B. •...
- Page 14 Page 14 of 23 Document number 291945 V5 These filters are applied to the digitised signal by the local processing of the signals in the PC. These controls do not adjust or override the internal filtering options of the CIB. Data Logging The data logging controls on the soft front panel of the oscilloscope allow the start, stop, save and clear functions of the data recorder.
- Page 15 Page 15 of 23 Document number 291945 V5 The data can be saved as a text file that is either comma or tab delimited. The data is tabulated in the form 0.000 0.008346 -0.008809 -0.018999 0.001 0.009432 -0.008183 -0.019048 0.002 0.010199 -0.007738 -0.018926 0.003 0.010598...
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Page 16: Software Shutdown
Page 16 of 23 Document number 291945 V5 Signal Voltage versus Time -0.1 -0.2 -0.3 -0.4 Time /s Software Shutdown The CIB software is closed by use of the EXIT button. Once the software is closed the CIB may be switched off and then the USB connection may be broken. It is inadvisable to disconnect the USB connection while the CIB software is running. -
Page 17: Obtaining Other Physiological Signals
Page 17 of 23 Document number 291945 V5 Oscilloscope: If using an oscilloscope connect the control and interface box differential output to an oscilloscope using a standard BNC cable, set the time base to 0.5secs/cm and Y gain to 0.5Volts/cm dc coupled. Virtual instrument: If using the soft virtual instrument then drag the voltage setting to about 1.5, select “Differential A-B”... -
Page 18: Non-Contact Ecg
EEG signal. recommended It is possible but not to connect the sensors directly to your own equipment. Non-Contact ECG on a chair (extract from Plessey Application Note # 291566) Start by setting: • “x1” Gain to (for PS25101 or PS25201/401 sensors) or •... - Page 19 Page 19 of 23 Document number 291945 V5 Place the two sensors on the seat back approximately to the left and right of the spine and mid back. Virtual instrument: If using the soft virtual instrument then: • Select “Differential A-B” from the channel selection. •...
- Page 20 Page 20 of 23 Document number 291945 V5 EPIC Sensors in contact with clothing Output EPIC demo – Conductive fabric in contact with clothing, e.g. on chair seat Basic configuration for non-contact ECG measurement including capacitively-coupled DRL” circuit. In non-contact ECG measurement there is – by definition - no skin contact, and thus no direct connection can be made between the subject’s body and the system ground.
- Page 21 Page 21 of 23 Document number 291945 V5 Static – Because there is no direct physical contact between the subject and any grounding point, there is no path for any static build up to be discharged. Under most circumstances static build up does not present a problem, but depending on factors including clothing, footwear, flooring, humidity levels in the air and so forth, static build up can sometimes prevent the cardiac signal from being seen clearly.
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Page 22: Terms And Conditions
F: +44 1752 693700 Legal Notice Product information provided by Plessey Semiconductors Limited (“Plessey”) in this document is believed to be correct and accurate. Plessey reserves the right to change/correct the specifications and other data or information relating to products without... - Page 23 Products sold by Plessey are subject to its standard Terms and Conditions of Sale that are available on request. No warranty is given that products do not infringe the intellectual property rights of third parties, and furthermore, the use of products in certain ways or in combination with Plessey, or non-Plessey furnished equipments/components may infringe intellectual property rights of Plessey.
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