The present invention provides a simple and direct method for the simultaneous correction of steady-state polarized fluorescence intensities, depolarized by the effects of applied hydrostatic pressure without having to first determine the scrambling factors from a separate experiment. A masking member is employed as a shielding member to anisotropically etch the substrate from its bottom surface, thereby forming a V-shaped groove. a first supply voltage, and a second component provided within a second voltage domain and operable to receive a second supply voltage. The dispenser may be configured by a cartridge inserted into the dispenser in place of the canister. The method is likewise applicable to other commodities such as a water supply, fuel gas supply, or the like. A method embodiment of the present invention comprises the steps of encrypting plaintext with an OTP key in an XOR operation to produce ciphertext ; and obfuscating the ciphertext with an AutoKey in an XOR operation to produce AutoKeyed ciphertext, wherein the AutoKey is a reusable key.