Thin-Film Sensors for Aerospace

Vacuum Coating Equipment & Technologies

Aerospace sen­sor tech­nol­ogy re­mains cen­tral to nav­i­ga­tion, flight con­trol, con­di­tion mon­i­tor­ing, and mis­sion suc­cess. Sen­sors must per­form re­li­ably in ex­treme en­vi­ron­ments — wide tem­per­a­ture ranges, in­tense vib­ra­tion, high ra­di­a­tion, and cor­ro­sive at­mos­pheres — so the right ma­te­ri­als and sur­face treat­ments are es­sen­tial.

Thin-­film sen­sors are par­tic­u­lar­ly well­suited be­cause they are light­weight, com­pact, and can be ap­plied di­rect­ly to com­po­nent sur­faces. By func­tion they are gen­er­al­ly clas­si­fied as tem­per­a­ture sen­sors (in­clud­ing cryo­gen­ic con­di­tions), pres­sure sen­sors (pneu­mat­ics, hy­draul­ics, cab­in pres­sure), struc­tural sen­sors (struc­tural health mon­i­tor­ing, de­tec­tion of de­for­ma­tion, stress, and ma­te­ri­al fa­tigue), flow and me­di­um sen­sors, and gas and en­vi­ron­men­tal sen­sors.

Com­mon ap­pli­ca­tions in­clude di­rect ap­pli­ca­tion to CFRP or me­tal air­frame struc­tures for real-­time struc­tural mon­i­tor­ing, high-­tem­per­a­ture-­stable thin-­film ther­mo­cou­ples and pres­sure sen­sors in en­gines, spe­cial­ized sen­sors for cryo­gen­ic fuel tanks, and var­ied avion­ics sensing so­lu­tions. Dis­tinc­tive fea­tures in­clude ex­treme mi­ni­atur­i­za­tion (typ­i­cal film thick­nesses 1–6 µm), high pre­ci­sion, and low weight to re­duce mass.

Thin-­film sen­sors are of­ten cus­tom­ized to match spe­cif­ic ma­te­ri­als, load con­di­tions, and en­vi­ron­men­tal en­force­ments to en­hance re­li­abil­ity and per­for­mance. In­te­grat­ing PVD vac­uum coat­ings into man­u­fac­tur­ing pro­cesses im­proves sen­sor life­span and en­ables func­tion­al sur­face prop­er­ties such as op­tic­al per­for­mance, elec­tri­cal con­duc­tiv­ity, and en­vi­ron­men­tal re­sis­tance.

We sup­ply vac­uum-­coat­ing sys­tems de­signed for these aero­space re­quire­ments in In­dia and pro­vide tech­no­log­i­cal sup­port for sam­pling, pi­lot tri­als, and scal­ing to pro­duc­tion.