Appendix IV : Labpro instrumentation spec.s
These units are Data
Acquisition Devices (DAQ) they record voltages (range =±10V, resolution = 4.9mV) from attached sensors at programmed intervals
or other trigger conditions. They may
also convert the raw data to measurements, average it, or filter it.
|
|
LabPro |
|
On-board
Data Display |
No |
|
Max
# of data Points |
<12,287
(limited by memory) |
|
Sample
Time Range (seconds/ sample) |
10-4s
to 16,000s |
|
Sample
Time Rules |
Multiple
of 100ms |
|
Max
# of probes: Analog vs Digital |
4
Analog, 2 digital |
|
Data
collection and analysis: Realtime vs Non-realtime |
both |
|
Setup:
Remote, Calculator, Computer |
All
three modes |
|
Connection:
I/O port (Calculator to calculator link cable), Serial port, USB port |
All
three |
|
|
|
Software
DataMate : A calculator program (transferred from LabPro) that allows any probe or combination of probes to be setup, calibrated, collected and graphed.
Logger Pro: A computer program that will setup, calibrate, collect, graph, store, and analyze data from all probes on the LabPro.
TI-Graph Link: A computer program that allows programs and data to be transferred between the calculator and the computer. It requires a special adapter cable from the computers serial port and the calculator's I/O port.
Graphical Analysis: A computer program that allows data to be retrieved directly from the calculator and then graphed and analyzed.
Sensors
Many sensors
are available. They return a voltage
(V) that is linearly proportional to the desired measurement (M). This voltage must be "calibrated"
by getting a slope (K1) and intercept (K0) for the following
equation. 
Standard Calibration Coefficients:
|
Sensor |
ID |
Units |
Equ Type |
K0 |
K1 |
K2 |
|
Stainless
Steel Temp |
TMP-BTA |
°C |
12 |
0.001021 |
0.0002225 |
0.0000001333 |
|
Barometer |
BAR-BTA |
Atm |
1 |
0.8093 |
0.077 |
|
|
|
mBar |
1 |
819.52 |
78.001 |
|
|
|
|
|
mmHg |
1 |
614.84 |
58.52 |
|
|
|
|
inHg |
1 |
24.215 |
2.292 |
|
|
CO2
Sensor |
CO2-BTA |
ppm |
1 |
0.0 |
2000 |
|
|
O2
Sensor |
O2-BTA |
% |
1 |
0.0 |
6.658 |
|
|
Relative
Humidity |
RH-BTA |
% |
1 |
-23.8 |
32.9 |
|
|
Magnetic
Field (low) |
MG-BTA |
Gauss |
1 |
-80.63 |
32.25 |
|
|
|
|
mTesla |
1 |
-8.063 |
3.225 |
|
|
Light
Sensor –600 lux |
LS-BTA |
lux |
1 |
0.0 |
154.0 |
|
|
-6000 lux |
|
lux |
1 |
0.0 |
1695.0 |
|
|
-150000 |
|
lux |
1 |
0.0 |
38424.0 |
|
|
Radiation
Monitor (G-M) |
RM-BTA |
Counts |
1 |
0.0 |
1.0 |
|
|
|
|
|
|
|
|
|
Sampling Interval Limitations:
LabPro S cannot be less than 0.0001 sec nor more than 16,000 seconds. S must be a multiple of 0.0001 sec.
TI-83 specs:
Memory: 27K bytes
Lists: L1 thru L6, plus unlimited additional named lists (5 chars). Each list may contain up to 999 elements. However, since 9bytes are required per element, one is usually limited to about 512 data points because of memory.