ask me if you want see the power on video
Bob
Friday, March 27, 2009
trimble NT200 GPS receiver for sell
property of U.S Coast Guard
so ,it with the "CG"
NOT power cable to power on
HP 5517B laser head 激光头
现货供应 42个
一般事項
- 線性光學的最大速度：500 mm/sec
- 參考頻率：1.9 到 2.4 MHz
- 重量：3.4 kg (7.5 lb)
- 佈線所需的預留空間：裝置與後方距離需保留 12.00 cm (4.72 in) 以上
雷射光束
- 直徑：6 mm (0.25 in)
- 最小輸出功率：180 uW (標準值)
- 最小輸出功率：400 uW (選項 H10)
電力
- +15V ± 2.2A 時最大為 0.3V
- +15V ± 0.02A 時最大為 0.3V
- 熱機耗電量：35W
- 工作耗電量：23 W
Figure 5-9. Agilent 5517D Laser Head dimensions
PHYSICAL CHARACTERISTICS LASER BEAM CHARACTERISTICS
Dimensions: See figure below Type: Helium-Neon, Continuous, Two-Frequency
Weight: 3.4 Kilograms (7.5 pounds) Maximum Beam Power Output: 1 milliwatt
Magnetic Field Strength (Non-Operating): Minimum Beam Power Output: 180 microwatts
Does not exceed 5.25 milligauss at a distance of 460 cm (15 ft)
from any point on the surface of the packaged Laser Head.
Beam Diameter: 6 millimeters, 0.25 inch, typical
Vacuum Wavelength Accuracy (3 sigma, lifetime): ±0.1 ppm
Vacuum Wavelength Stability (typical 1 hour): ±0.002 ppm
Vacuum Wavelength Stability (typical lifetime): ±0.02 ppm
Clearance Required for Cabling: 10.16 cm (4 in) beyond back
POWER
Power Input Requirements: Nominal Vacuum Wavelength: 632.991354 nanometers
+15 Volts ±0.3 Volts at 2.2 Amperes maximum
−15 Volts ±0.3 Volts at 0.02 Ampere maximum
Safety Classification:
Class II Laser Product conforming to U.S.
Heat Dissipation: 23 watts (during operation)
35 watts (during warmup)
National Center for Devices and Radiological
Health Regulations 21 CFR 1040.10 and 1040.11.
Warmup Time: less than 10 minutes (4 minutes typical) OUTPUTS
Reference Frequency: 3.4 - 4.0 MHz
139.6 mm
Thursday, March 26, 2009
murata env-05h vibrating gyroscope 角速度传感器 陀螺仪
the Murata Gyrostar [Murata] model
ENV-05H (see Fig. 1). The Gyrostar is a piezoelectric
vibrating gyroscope with analog voltage output that
varies linearly with the measured rate of rotation. connection
to a computer. The drift rate we measured in
practice was 3 to 15E/min (similar to the drift observed
by [Barshan and Durrant-Whyte, 1995] for
their Gyrostar sensor). We will assume an average
drift rate of 10E/min = 0.166E/s
1000 psc on my shelf
Wednesday, March 25, 2009
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