HIP::Keck

(Difference between revisions)
 Revision as of 21:36, 21 February 2007 (view source)Klyceje (Talk | contribs) (→Turbitity)← Older edit Revision as of 21:44, 21 February 2007 (view source)Klyceje (Talk | contribs) (→Sensors)Newer edit → Line 7: Line 7: = Sensors = = Sensors = * Determine required sensitivity and periodicity for each sensor. * Determine required sensitivity and periodicity for each sensor. + * Mike said that sensitivity should be secondary to ruggedness and cost because the sensitivity that we are looking for is not high and most sensors will meet our needs. Thus, our approach should be to find sensors that we think will work and then send him the specs for him to OK. == Water Temperature == == Water Temperature == * Colin * Colin Line 32: Line 33: * Maduna * Maduna - Talked to mike. He says he doesn't know what pressure was doing on the list. + * Talked to mike. He says he doesn't know what pressure was doing on the list. -Jeff -Jeff Line 47: Line 48: * Jeff * Jeff - Mike says that we could build a turbidity sensor using LEDs and fiber-optic cables without too much difficulty. He is willing to help with construction if necessary. + * Mike says that we could build a turbidity sensor using LEDs and fiber-optic cables without too much difficulty. He is willing to help with construction if necessary. However, we both agreed that finding an assembly that meets our need would probably be the first course of action. = Batteries = = Batteries =

Possible Commercial Product

• There may be general commercial products to solve this problem.
• See references
• Alex

Sensors

• Determine required sensitivity and periodicity for each sensor.
• Mike said that sensitivity should be secondary to ruggedness and cost because the sensitivity that we are looking for is not high and most sensors will meet our needs. Thus, our approach should be to find sensors that we think will work and then send him the specs for him to OK.

Water Temperature

• Colin

RTP - Ruggedized Wide Range Temperature Probe

• 9 or 12 bit resolution
• 12 foot CAT 5 cable
• Dallas Semiconductor DS18S20 or DS18B20 sensors
• uses 1-Wire communication protocol

The RTP temperature probe is designed for wide temperature range applications requiring excellent chemical resistant properties and sensor submersion.

• Jeff

• Mikio

Pressure

What kind of pressure? Ask Mike.

• Talked to mike. He says he doesn't know what pressure was doing on the list.

-Jeff

• Bryan

• Jeff

• Colin

Turbidity

• Jeff
• Mike says that we could build a turbidity sensor using LEDs and fiber-optic cables without too much difficulty. He is willing to help with construction if necessary. However, we both agreed that finding an assembly that meets our need would probably be the first course of action.

Batteries

• Heating and cooling.

SBCs

• Power over ethernet? not supported by TS or Gumstix.
• Heating and cooling.

• Bryan

Technologic Systems

• Colin
Embedded Arm Product Matrix
SBC Type DIO lines A/D Converter Price
TS-7200 ARM 20 8 ch. 12-bit (opt) \$149.00
TS-7250 ARM 20 5 ch. 12-bit \$149.00
TS-7260 ARM 30 & XDIO* 2 ch. 12-bit \$179.00
TS-7300 ARM 55 (35 XDIO) n/a \$219.00
TS-7400 ARM 20 4 ch. 8 bit \$129.00
TS-5500 x86 38 (IRQ) 8 ch. 8 bit \$319.00
• eXtended Digital I/O functionality including pulse-width modulation, quadrature and edge counting, and pulse timing with IRQ/DRQ support.
• TS-DIO64 Digital I/O Board, which is a 8-bit PC/104 (standard format) peripheral board that provides 64 digital I/O points (32 inputs plus 32 outputs). Up to 4 TS-DIO64 boards may be installed into a single system, enabling up to 256 DIO points (128 inputs plus 128 outputs). The TS-DIO64 DIO functions are compatible with any PC/104 SBC including all the Technologic Systems ARM and X86 products.