http://usdigital.com/support/resource-library/ US Digital designs and manufactures optical encoders, inclinometers & motion control components. Our complete product line includes either absolute or incremental optical encoder & inclinometer products, stepper motors, PC interfaces, digital readouts, sw en-us Copyright 2008 US Digital. support@usdigital.com Sat, 04 Sep 2010 11:27:09 PDT Sat, 04 Sep 2010 11:27:09 PDT In house http://blogs.law.harvard.edu/tech/rss/ Resource Library http://usdigital.com/support/resource-library/white-papers/how-the-t7-networked-absolute-inclinometer-drives- Abstract: Concentrated solar power (CSP) and concentrated photovoltaic (CPV) methodologies generate electricity by focusing a large amount of sunlight onto a much smaller area. To maximize efficiency, the sunlight needs to be accurately focused. Being off by even a single degree could result in a significant drop in efficiency, and the biggest impact to the cost of delivering solar energy is efficiency. As with most systems, the accuracy is limited by the accuracy of the sensors used in that system. There are a number of different types of sensors that can be used in these systems. This paper discusses why an absolute inclinometer is the most effective sensor solution and why the US Digital T7 is superior to other inclinometers available today. Download the document here . White PapersThu, 27 May 2010 08:55:00 PDT http://usdigital.com/support/resource-library/avago-replacements/avago-compatibility-heds-5xxx HEDS-5500, HEDS-5505, HEDS-5540, HEDS-5545, HEDS-5600, HEDS-5605, HEDS-5640, HEDS-5645. Part Number Comparison In order for the E5D to be fully compatible with the HEDL-5XXX, CA-C10-F-C10 must also be ordered separately Avago / Agilent / HP Part Number HEDS-5 x x x - x x US Digital Part Number E2- x - x - x - x - x - B Mounting Type Description Avago US Digital Standard 5 D Mounting Ears 6 G Through Hole Description Avago US Digital No Hole 0 D Hole In Cover 5 H Outputs Description Avago US Digital A + B 0 N A + B + I 4 I Shaft Diameter Description Avago US Digital 2mm 01 079 3mm 02 118 1/8" 03 125 5/32" 04 156 3/16" 05 188 1/4" 06 250 4mm 11 157 6mm 12 236 8mm 13 315 5mm 14 197 Resolution (CPR) Description Avago US Digital 50 S 50 96 K 96 100 C 100 192 D 192 200 E 200 256 F 256 360 G 360 400 H 400 500 A 500 512 I 512 Avago / Agilent / HP CompatibleThu, 11 Sep 2008 17:12:00 PDT http://usdigital.com/support/resource-library/avago-replacements/avago-compatibility-hedm-5x0x HEDM-5500, HEDM-5505, HEDM-5600, HEDM-5606. Part Number Comparison Avago / Agilent / HP Part Number HEDM-5 x 0 x - x x US Digital Part Number E2- x - x - N - x - x - B Mounting Type Description Avago US Digital Standard 5 D Mounting Ears 6 G Resolution (CPR) Description Avago US Digital 1000 B 1000 1024 6 G Shaft Diameter Description Avago US Digital 2mm 01 079 3mm 02 118 1/8" 03 125 5/32" 04 156 3/16" 05 188 1/4" 06 250 4mm 11 157 6mm 12 236 8mm 13 315 5mm 14 197 Through Hole Description Avago US Digital No Hole 0 D Hole In Cover 5 H Avago / Agilent / HP CompatibleThu, 14 Aug 2008 15:21:00 PDT http://usdigital.com/support/resource-library/avago-replacements/avago-compatibility-hedl-65xx HEDL-6500, HEDL-6505, HEDL-6540, HEDL-6545. Part Number Comparison In order for the E6 to be fully compatible with the HEDL-5XXX, CA-C10-F-C10 must also be ordered separately Avago / Agilent / HP Part Number HEDL-65 x x - x x US Digital Part Number E6- x - x - x - L - x - D - B Through Hole Description Avago US Digital No Hole 0 D Hole In Cover 5 H Output Description Avago US Digital A, Ā, B, b 0 N A, Ā, B, b, I, Ī 4 I Shaft Diameter Description Avago US Digital 3/16" 05 188 1/4" 06 250 5/16" 07 312 3/8" 08 375 1/2" 09 500 5/8" 10 625 4mm 11 157 6mm 12 236 8mm 13 315 Resolution (CPR) Description Avago US Digital 500 A 500 1000 B 1000 1024 J 1024 Avago / Agilent / HP CompatibleThu, 14 Aug 2008 15:08:00 PDT http://usdigital.com/support/resource-library/avago-replacements/avago-compatibility-hedl-5xxx HEDL-5500, HEDL-5505, HEDL-5540, HEDL-5545, HEDL-5600, HEDL-5605, HEDL-5640, HEDL-5645. Part Number Comparison In order for the E5D to be fully compatible with the HEDL-5XXX, CA-C10-F-C10 must also be ordered separately Avago / Agilent / HP Part Number HEDL-5 x x x - x x US Digital Part Number E5- x - x - x - L - x - x - B Mounting Type Description Avago US Digital Standard 5 D Mounting Ears 6 G Through Hole Description Avago US Digital No Hole 0 D Hole In Cover 5 H Outputs Description Avago US Digital A + B 0 N A + B + I 4 I Shaft Diameter Description Avago US Digital 2mm 01 079 3mm 02 118 1/8" 03 125 5/32" 04 156 3/16" 05 188 1/4" 06 250 4mm 11 157 6mm 12 236 8mm 13 315 5mm 14 197 Resolution (CPR) Description Avago US Digital 50 S 50 96 K 96 100 C 100 192 D 192 200 E 200 256 F 256 360 G 360 400 H 400 500 A 500 512 I 512 Avago / Agilent / HP CompatibleThu, 14 Aug 2008 15:01:00 PDT http://usdigital.com/support/resource-library/edivide-available-integer-resolutions CPR Divide By Original CPR Series 1 50 50 1" 1 100 100 1" 1 100 100 2" 1 110 110 1" 1 120 120 1" 1 127 127 Linear 1 192 192 1" 1 200 200 1" 1 200 200 2" 1 200 200 Linear 1 250 250 1" 1 256 256 1" 1 300 300 Linear 1 360 360 1" 1 360 360 Linear 1 400 400 1" 1 400 400 2" 1 500 500 1" 1 500 500 2" 1 512 512 1" 1 512 512 2" 1 540 540 1" 1 1000 1000 1" 1 1000 1000 2" 1 1016 1016 1" 1 1024 1024 1" 1 1024 1024 2" 1 2000 2000 2" 1 2048 2048 2" 2 25 50 1" 2 50 100 1" 2 50 100 2" 2 55 110 1" 2 60 120 1" 2 96 192 1" 2 100 200 1" 2 100 200 2" 2 100 200 Linear 2 125 250 1" 2 128 256 1" 2 150 300 Linear 2 180 360 1" 2 180 360 Linear 2 200 400 1" 2 200 400 2" 2 250 500 1" 2 250 500 2" 2 256 512 1" 2 256 512 2" 2 270 540 1" 2 500 1000 1" 2 500 1000 2" 2 508 1016 1" 2 512 1024 1" 2 512 1024 2" 2 1000 2000 2" 2 1024 2048 2" 3 40 120 1" 3 64 192 1" 3 100 300 Linear 3 120 360 1" 3 120 360 Linear 3 180 540 1" 4 25 100 1" 4 25 100 2" 4 30 120 1" 4 48 192 1" 4 50 200 1" 4 50 200 2" 4 50 200 Linear 4 64 256 1" 4 75 300 Linear 4 90 360 1" 4 90 360 Linear 4 100 400 1" 4 100 400 2" 4 125 500 1" 4 125 500 2" 4 128 512 1" 4 128 512 2" 4 135 540 1" 4 250 1000 1" 4 250 1000 2" 4 254 1016 1" 4 256 1024 1" 4 256 1024 2" 4 500 2000 2" 4 512 2048 2" 5 10 50 1" 5 20 100 1" 5 20 100 2" 5 22 110 1" 5 24 120 1" 5 40 200 1" 5 40 200 2" 5 40 200 Linear 5 50 250 1" 5 60 300 Linear 5 72 360 1" 5 72 360 Linear 5 80 400 1" 5 80 400 2" 5 100 500 1" 5 100 500 2" 5 108 540 1" 5 200 1000 1" 5 200 1000 2" 5 400 2000 2" 6 20 120 1" 6 32 192 1" 6 50 300 Linear 6 60 360 1" 6 60 360 Linear 6 90 540 1" 8 15 120 1" 8 24 192 1" 8 25 200 1" 8 25 200 2" 8 25 200 Linear 8 32 256 1" 8 45 360 1" 8 45 360 Linear 8 50 400 1" 8 50 400 2" 8 64 512 1" 8 64 512 2" 8 125 1000 1" 8 125 1000 2" 8 127 1016 1" 8 128 1024 1" 8 128 1024 2" 8 250 2000 2" 8 256 2048 2" 9 40 360 1" 9 40 360 Linear 9 60 540 1" 10 5 50 1" 10 10 100 1" 10 10 100 2" 10 1 1 110 1" 10 12 120 1" 10 20 200 1" 10 20 200 2" 10 20 200 Linear 10 25 250 1" 10 30 300 Linear 10 36 360 1" 10 36 360 Linear 10 40 400 1" 10 40 400 2" 10 50 500 1" 10 50 500 2" 10 54 540 1" 10 100 1000 1" 10 100 1000 2" 10 200 2000 2" 11 10 110 1" 12 10 120 1" 12 16 192 1" 12 25 300 Linear 12 30 360 1" 12 30 360 Linear 12 45 540 1" 15 8 120 1" 15 20 300 Linear 15 24 360 1" 15 24 360 Linear 15 36 540 1" 16 12 192 1" 16 16 256 1" 16 25 400 1" 16 25 400 2" 16 32 512 1" 16 32 512 2" 16 64 1024 1" 16 64 1024 2" 16 125 2000 2" 16 128 2048 2" 18 20 360 1" 18 20 360 Linear 18 30 540 1" 20 5 100 1" 20 5 100 2" 20 6 120 1" 20 10 200 1" 20 10 200 2" 20 10 200 Linear 20 15 300 Linear 20 18 360 1" 20 18 360 Linear 20 20 400 1" 20 20 400 2" 20 25 500 1" 20 25 500 2" 20 27 540 1" 20 50 1000 1" 20 50 1000 2" 20 100 2000 2" 22 5 110 1" 24 5 120 1" 24 8 192 1" 24 15 360 1" 24 15 360 Linear 25 2 50 1" 25 4 100 1" 25 4 100 2" 25 8 200 1" 25 8 200 2" 25 8 200 Linear 25 10 250 1" 25 12 300 Linear 25 16 400 1" 25 16 400 2" 25 20 500 1" 25 20 500 2" 25 40 1000 1" 25 40 1000 2" 25 80 2000 2" 27 20 540 1" 30 4 120 1" 30 10 300 Linear 30 12 360 1" 30 12 360 Linear 30 18 540 1" 32 6 192 1" 32 8 256 1" 32 16 512 1" 32 16 512 2" 32 32 1024 1" 32 32 1024 2" 32 64 2048 2" 36 10 360 1" 36 10 360 Linear 36 15 540 1" 40 3 120 1" 40 5 200 1" 40 5 200 2" 40 5 200 Linear 40 9 360 1" 40 9 360 Linear 40 10 400 1" 40 10 400 2" 40 25 1000 1" 40 25 1000 2" 40 50 2000 2" 45 8 360 1" 45 8 360 Linear 45 12 540 1" 48 4 192 1" 50 2 100 1" 50 2 100 2" 50 4 200 1" 50 4 200 2" 50 4 200 Linear 50 5 250 1" 50 6 300 Linear 50 8 400 1" 50 8 400 2" 50 10 500 1" 50 10 500 2" 50 20 1000 1" 50 20 1000 2" 50 40 2000 2" 54 10 540 1" 55 2 110 1" 60 2 120 1" 60 5 300 Linear 60 6 360 1" 60 6 360 Linear 60 9 540 1" 64 3 192 1" 64 4 256 1" 64 8 512 1" 64 8 512 2" 64 16 1024 1" 64 16 1024 2" 64 32 2048 2" 72 5 360 1" 72 5 360 Linear 75 4 300 Linear 80 5 400 1" 80 5 400 2" 80 25 2000 2" 90 4 360 1" 90 4 360 Linear 90 6 540 1" 96 2 192 1" 100 2 200 1" 100 2 200 2" 100 2 200 Linear 100 3 300 Linear 100 4 400 1" 100 4 400 2" 100 5 500 1" 100 5 500 2" 100 10 1000 1" 100 10 1000 2" 100 20 2000 2" 108 5 540 1" 120 3 360 1" 120 3 360 Linear 125 2 250 1" 125 4 500 1" 125 4 500 2" 125 8 1000 1" 125 8 1000 2" 125 16 2000 2" 127 8 1016 1" 128 2 256 1" 128 4 512 1" 128 4 512 2" 128 8 1024 1" 128 8 1024 2" 128 16 2048 2" 135 4 540 1" 150 2 300 Linear 180 2 360 1" 180 2 360 Linear 180 3 540 1" 200 2 400 1" 200 2 400 2" 200 5 1000 1" 200 5 1000 2" 200 10 2000 2" 250 2 500 1" 250 2 500 2" 250 4 1000 1" 250 4 1000 2" 250 8 2000 2" 254 4 1016 1" 256 2 512 1" 256 2 512 2" 256 4 1024 1" 256 4 1024 2" 256 8 2048 2" 270 2 540 1" 400 5 2000 2" 500 2 1000 1" 500 2 1000 2" 500 4 2000 2" 508 2 1016 1" 512 2 1024 1" 512 2 1024 2" 512 4 2048 2" 1000 2 2000 2" 1024 2 2048 2" Resource LibraryWed, 18 Jun 2008 13:50:00 PDT http://usdigital.com/support/resource-library/em1-heds-reference-guide The EM1 and HEDS products are transmissive optical encoder modules. These modules are designed to detect rotary or linear position when used together with a codewheel or linear strip. The EM1 and HEDS modules consist of a lensed LED source and a monolithic detector IC enclosed in a small polymer package. These modules use phased array detector technology to provide superior performance and greater tolerances over traditional aperture mask type encoders. Both the EM1 and HEDS module provide digital quadrature outputs. The EM1 comes standard with a third index channel output on all resolutions. The HEDS is available with a third index channel output on some resolutions. The EM1 and HEDS transmissive optical encoder module are powered from a single +5VDC power supply. Additional power supply voltages for the EM1 will be available in the near future. The EM1 single-ended outputs are capable of sinking or sourcing 8mA each. The resolution of the modules and encoder disks or linear strips must match. Two mounting holes are provided to accept 4-40 machine screws. Both the EM1 and HEDS have identical mounting and pin-out configurations. For open collector and higher voltage applications, add the PC3 device , or for differential cable driver outputs, add the PC4 device . Encoder disks, linear strips, quadrature decoder chips, counter chips, computer interface boards, mating connectors and cables are also available. Differences US Digital is the designer and manufacturer of the EM1 transmissive optical encoder module. The design of the EM1 provides electrical and mechanical compatibility with the Agilent HEDS-9000 , HEDS-9100 , HEDS-9200 , HEDS-9040 , and HEDS-9140 series modules. The process of switching from the HEDS to the EM1 module should not require any mechanical or electrical changes. Simply use the EM1 and matching codewheel in place of the HEDS module and codewheel. The EM1 has a built-in index channel available on all resolutions, for both rotary disks and linear strips. The EM1 uses a US Digital designed codewheel with 2 tracks rather than 3 tracks for index versions. Non-index codewheels are interchangable between the EM1 and HEDS modules. The EM1 offers improved output drive capability and will source and sink 8mA at TTL levels.  Physically, the EM1 has no external wire loops which can interfere when mounting. The connector pins are 0.051" shorter than HEDS modules, while still providing .30" insertion depth. US Digital's EM1 offers custom and special resolutions. Disk Compatibility   1" Disks 2" Disks CPR Non-index With Index Non-index With Index 32   EM1-1-32     50 HEDS-9100-S00 HEDS-9140-S00     64       EM1-1-32 96 HEDS-9100-C00 HEDS-9140-C00     100 HEDS-9100-C00 HEDS-9140-C00 HEDS-9100-S00 HEDS-9140-S00 110 HEDS-9100-C00       120 HEDS-9100-C00       192 HEDS-9100-E00 HEDS-9140-E00     200 HEDS-9100-E00 HEDS-9140-E00 HEDS-9100-C00 HEDS-9140-C00 250 HEDS-9100-E00 HEDS-9140-F00     256 HEDS-9100-E00 HEDS-9140-F00     360 HEDS-9100-G00 HEDS-9140-G00     400 HEDS-9100-H00 HEDS-9140-H00 HEDS-9100-E00 HEDS-9140-E00 500 HEDS-9100-A00 HEDS-9140-A00 HEDS-9000-A00 HEDS-9140-F00 512 HEDS-9100-I00 HEDS-9140-I00 HEDS-9000-A00   540 HEDS-9100-I00       720   EM1-1-720     900   EM1-1-900     1000 HEDS-9100-B00 EM1-1-1000 HEDS-9000-B00 HEDS-9040-B00 1016 HEDS-9100-J00       1024 HEDS-9100-J00 EM1-1-1024 HEDS-9000-J00 HEDS-9040-J00 1250   EM1-1-1250     1800       EM1-2-1800 2000     HEDS-9000-T00 HEDS-9040-T00 2048     HEDS-9000-U00 HEDS-9040-T00 2500       EM1-2-2500 Linear Strip Compatibility CPR Non-index With Index 120   EM1-0-120 125   EM1-0-127 127   EM1-0-127 150   EM1-0-150 180 HEDS-9200-Q00   200   EM1-0-200 250   EM1-0-250 300 HEDS-9200-300   360 HEDS-9200-360   500   EM1-0-500 Resource LibraryThu, 12 Jun 2008 09:47:00 PDT