Hybrid vs. FIR and IIR Filtering for Faster Lock‑In Measurements

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Lake Shore's M81-SSM system introduces a hybrid FIR + IIR filtering method that significantly speeds up lock-in measurements while maintaining high precision and noise rejection; by combining the fast settling of FIR filters with the signal suppression of IIR filters, users can achieve up to 37% faster measurements without sacrificing accuracy, making it ideal for sensitive applications.