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HR Series Sensors

Features of the HR Series Sensors

Full material traceability for 15 years
Resistance and sensitivity data available for all sensors
Reduce lead time
Gain confidence from our test protocol
No hidden costs—pay only for the sensors you buy

Test protocols include:

Acceptance steps

Full lot traceability for a minimum of 15 years
Independent inspection of sensor before sealing
Constant acceleration (20,000 gs)
Particle impact noise detection (PIND) test
X-ray (internal defects and wire clearance)
Burn-in (1 week)
Thermal cycling (repeated between 298 and 4.2 K)
Fine hermetic seal
Gross hermetic seal
Visual inspection to MIL standards

Qualification tests

Die shear strength
Wire bond strength
Wire bond cross section
External bond pad bondability
Independent destructive physical analysis
Outgassing
Thermal shock (100 shocks)
Vibration testing
Mechanical shock
Life test (up to 2,000 h)

High reliability sensors

The HR Series is a new line of high reliability cryogenic temperature sensors for mission-critical applications. Starting with our proven temperature sensor technology, we have developed a family of off-the-shelf sensors that have already undergone extreme testing steps
to assure you of extra reliability.

For when the best needs to be better

In situations where cryogenic temperature control or monitoring forms a critical component of a system and the cost of sensor failure far exceeds the cost of the sensor, subjecting sensors to a higher level of scrutiny becomes vital. Projects where outcomes are worth far more than the sum of their parts are prime examples of this and include:

Space telescopes
Supercolliders
Fusion reactors
Research satellites
Maglev locomotives

Get your project to completion on time, under budget

Save time

Following standardized testing procedures, these sensors are built on regular production schedules and stocked for rapid delivery, resulting in lead times comparable to standard commercial sensors. Predefined testing protocol also cuts paperwork—no need to define different detailed sensor requirements for every program.

Save money

Traditionally, sensor procurement for critical programs required that additional sensors for destructive qualification tests be purchased for each lot, increasing the total cost to the project without increasing the number of sensors that are available to install. HR sensors are different. Lake Shore performs the qualification testing for each lot, with the resulting screening and qualification test report being supplied at no additional cost to sensor buyers. With HR sensors, you only pay for the sensors that you use.

Reduce risk

In some scenarios, sensors are required to fall within specific resistance ranges or exhibit certain sensitivities at different temperatures. Lake Shore HR Series sensors reduce the risk to a project’s timeline by allowing customers to see resistance and sensitivity data on all stocked HR sensors. This information can be useful for pre-selecting and reserving sensors ahead of when they are actually required.