Armstrong Optical Offers a range of high accuracy laser displacement measurement interferometric instrumentation including;
Single beam interferometers
SP, SP-LR (long range) and MI (retroreflector) displacement measurement instrumentation with stabilised HeNe lasers as well as custom systems in stainless steel on Invar and environmental correction.
SP-DS, SP-DIS and SP-DI with both differential and two independent measuring arms with stabilised HeNe lasers and environmental correction.
Triple beam interferometers – true 3 beam systems
SP-TR and the SP-TR-LR (long range) displacement measurement instrumentation with high stability stainless steel or Invar construction and stabilised HeNe lasers and environmental correction.