Laboratory Measurement Systems

Tristan laboratory SQUID systems (pdf) are extremely sensitive instruments designed to detect small electromagnetic signals. By combining SQUID electronics with various special purpose probes and auxiliary electronics, laboratory systems having a variety of capabilities are made available, providing the ability to measure properties such as:

• Magnetic Fields and Gradients
• Magnetic Moments and Susceptibilities
• Electric and Magnetic Fluctuations
• DC Voltage, Resistance and Current
• AC resistance, self and mutual-inductance

Tristan standard systems are listed below. 


Model BMS Basic Measuring Systems

The Model BMS-H is a HTS SQUID system capable of measuring magnetic fields smaller than 50 fT (50 x 10^-15 Tesla). Typically, this system is used in conjunction with a NMD series Dewar.

The Model BMS-L is a LTS SQUID system capable of measuring small electric currents with a noise level less than 10^-12 Ampere/ÖHz. With a simple pickup coil, it also can be used for the detection of magnetic fields as small as 1 fT.

Model PMS Picovolt Measuring System

In addition to measurements possible with the BMS system, this system provides a cryogenic dc voltage amplifier with a gain of 10⁸ and a rms noise of less than 10^-13 Volts/ÖHz is used for measurements of very small voltages and resistances.

Model MPS Multi-Purpose System

In addition to measurements possible with the PMS system, this system provides a low impedance ac bridge system for extremely sensitive resistance and inductance measurements. Resolutions of 10^-10 Ohm and 10^-13 Henry are readily obtained. The Model MPS, having the combined capabilities of the BMS and PMS systems, allows a wide range of both ac and dc measurements to resolutions approaching 0.001% on single or multiple samples.

iMAG^® Laboratory SQUID Systems

Each system comprises: (1) dc SQUID Electronics; (2) Cryogenic Cable/Probe of standard length (one meter); (3) either LTS or HTS dc SQUID sensor; (4) listed ancillary equipment including Model CC-60 six meter fiber-optic composite connecting cable, accessory package and user manual.

Model BMS-H High Temperature SQUID Measurement System

• Model iMC-303 Cryogenic Control Unit
• Model iFL-301-H Flux-Locked Loop for HTS SQUID Sensors
• Model SP Standard Cryogenic Cable
• Model HTM-8 HTS dc SQUID

Model BMS-L Basic Measurement System

• Model iMC-303 Cryogenic Control Unit
• Model iFL-301-L Flux-Locked Loop for LTS SQUID Sensors
• Model SP Standard Cryogenic Cable with accessory pack
• Model LSQ/20 LTS dc SQUID

Model PMS Picovolt Measurement System

• Model iMC-303 Cryogenic Control Unit
• Model iFL-301-L Flux-Locked Loop for LTS SQUID Sensors
• Model MFP Multi-Function Probe with accessory pack
• Model LSQ/20 LTS dc SQUID

Model MPS Multi-Purpose Measurement System

• Model iMC-303 Cryogenic Control Unit
• Model iFL-301-L Flux-Locked Loop for LTS SQUID Sensors
• Model MFP Multi-Function Probe with accessory pack
• Model LSQ/20 LTS dc SQUID

Add-On Channels

Model LA1 - LTS Single Channel Add-on SQUID System includes Model iFL-301-L, Model SP, Model CC-6 and Model LSQ/20

Model HA8 - HTS Single Channel Add-on SQUID System includes Model iFL-301-H, Model SP, Model CC-6 and Model HTS-8

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