| Description The VSA™-1214 and VSA-1215
hardware modules attach firmly to Palm TX handheld computers to
form compact, extremely portable instruments. The Palm TX
supplies the computing power and 100 MB of data storage, while
the Datastick® VSA hardare module supplies the sensor power and
interface. SD (Secure Digital) memory cards — up to 2 GB each —
provide virtually unlimited auxiliary storage.
The VSA hardware modules each have a standard BNC connector
and a very low-noise input that accommodates and powers almost
any ICP®-type piezoelectric accelerometer. In addition, the
VSA-1215 can accomodate ICP-type velocity sensors.
Power
The VSA modules have internal rechargeable Li-ion batteries
and advanced power management capabilities that typically
stretch the VSA-1214 to four hours between recharges on an
average duty cycle (you can recharge on your lunch break) and
the VSA-1215 can go a full shift or longer.
An optional 3000 mA/h rechargeable external bettey pack is
available if you need more power, and it gives you the added
benefit of powering or recharging BOTH the VSA module and the
Palm TX handheld computer.
Key Features
- Uses and powers standard ICP-type piezoelectric
accelerometers
- Attaches to high-performance Palm TX handheld computer
- Extremely low noise floor
- Self-powered or optional external power
- Weighs 10 oz with Palm TX handheld computer
Key Specifications
- Sensor input: Standard BNC connector
- Sensor excitation:
- VSA-1214: 24V, 20 mA
- VSA-1215: Switchable on / off with
selectable voltage and current: 5, 12, 18, or 24VDC, and
2, 5, 10, 20, or 24 mA
- Sensor types:
- VSA-1214: ICP -type piezoelectric
accelerometers
- VSA-1215: ICP -type piezoelectric
accelerometers and ICP-type piezoelectric velocity
sensors
- Sensor input ranges:
- VSA-1214: 0-5 g, 0-20 g
- VSA-1215: 0-1 g, 0-2 g, 0-5 g, 0-10
g, 0-20 g, or 0-50 g
- Antialiasing filter: 10th order
hardware low-pass
- A-to-D resolution: 12 bits
- Dynamic range:
- VSA-1214: 90 dB overall, 65 dB per
input range
- VSA-1215: 130 dB overall, 65 db per
input range
- A-to-D internal sample rate: up to 40
KHz max
- Frequency range:
- VSA-1214: up to 10 kHz
- VSA-1215: up to 20 kHz
- FFT resolution:
- VSA-1214: 400 / 800 / 1600 lines
- VSA-1215: 400 / 800 / 1600 / 3200
lines
- Supported handheld computer: Palm TX
- Power: Internal rechargeable 800 mA/h
li-ion battery (Optional external 4800 mA/h 5 V rechargeable
li-ion battery, and external 120/240 VAC to 5 VDC, 1 A
regulated wall transformer are available)
- Dimensions and weight with Palm TX handheld
computer: Approx. 5.75 x 3.125 x 1.875 inches (146
x 79 x 48 mm); 10 ounces (283 g).
This page is Copyright 2008 Datastick Systems, Inc. Used with
permission. |
