Specificatons_EM Apperatus and Rotational Intertia and EM Tube.pdf
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- Scientific Equipment
- Solicitation number
- W911SD-24-R-0055
About this file
This sources sought notice requests capability information from potential vendors for the supply of various scientific equipment to the Department of Physics and Nuclear Engineering at the United States Military Academy at West Point. Equipment required includes the ME-3420 Rotational Inertia Accessory, ME-3419 Ring and Disk Set, ME-8969 Pendulum Accessory, ME-94488 Super Pulley with Clamp, eleven units of the SE-9629 Electron Charge-to-Mass Ratio System including the SE-9622 Tunable DC Power Supply, SE-9626 Helmholtz Coils, SE-9644 Tunable DC Power Supply, and six units of the SE-9659 Electron Charge-to-Mass Ratio Replacement Tube. Respondents are to provide information on their ability to meet specifications, pricing, delivery schedules and terms, and experience on similar requirements. The anticipated NAICS code is 334419 and the size standard is 750 employees. This is a small business set-aside and the Army seeks to structure requirements to maximize small business participation. The response deadline is not provided.
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Text version
Specifica�ons for Pasco Purchase:
E/M Apparatus (SE-9629):
A large, helium-filled electron tube is mounted between a pair of Helmholtz coils. The tube contains an electron gun, which generates a focused beam of electrons. A measured current is applied to the Helmholtz coils so that the magnitude of the magnetic field within the electron tube can be calculated. A measured accelerating potential (V) is then applied to the electron gun. The magnetic field (B) deflects the electron beam in a circular path with a radius (r) that is measured using the illuminated mm scale. Individual specifications of the E/M apparatus are found in the table below and it must be compatible with Pasco Devices. Link to product page can be found below:
https://www.pasco.com/products/lab-apparatus/electricity-and-magnetism/magnetic-fields/se- 9629#specs-panel
Hemholtz Coil Radius 16 cm
Number of Turns 130
Maximum Current 3.5 A
Filament Voltage 6.3 VAC
Acceleration Voltage 0 - 200 V
Tube Diameter 15.5 cm
Rota�onal Iner�a Accessories (ME-3240):
The Rotational Inertia Accessory can be added to the PASCO Rotary Motion Sensor to study the oscillations of a pendulum, the rotational inertia of a disk, a steel ring and a metal rod, as well as the conservation of momentum during a rotational collision. The Clamp-On Super Pulley allows students to apply a torque by hanging a mass over the pulley. Individual specs of each material are below and they all must be compatible with the Pasco Rotary Motion Sensor. Link to product page can be found below:
https://www.pasco.com/products/sensors/pasport/me-3420
Disk Mass 100 g
Ring Mass 100 g
Disk Diameter 8.9 cm
Ring Diameter 8.9 cm O.D., 8.4 cm I.D.
Rod Mass 28 g
Rod Dimensions 0.8 cm diameter, 38 cm long
Brass Masses 75 g
Alignment Guide Mass 2 g
E/M Apparatus Replacement Bulb (SE-9659):
A large, helium-filled electron tube is mounted between a pair of Helmholtz coils. The tube contains an electron gun, which generates a focused beam of electrons. This e/m Tube is designed for PASCO’s Electron Charge-to-Mass Ratio System SE-9629.
Filling gas Helium
Pressure 0.1 Pa
Filament voltage 6.3 V AC
Accelerating voltage 100-200 V DC
Deflecting voltage ≤ 150 V DC
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