Honeywell FSS Series Low Profile Force Sensors Product Documentation

FSS Series Low Profile Force Sensor DESCRIPTION The FSS Series Force Sensor provides precise, reliable force The sensor package design incorporates patented modular sensing performance in a compact, commercial-grade package construction. The use of innovative elastomeric technology and at a cost effective price. The sensor features a proven sensing engineered molded plastics results in overforce capacities of technology that uses a specialized piezoresistive, up to three times the rated force. The stainless steel ball micromachined silicon sensing element. The low power, provides excellent mechanical stability and is adaptable to a unamplified, uncompensated Wheatstone bridge circuit design variety of applications. provides inherently stable m V outputs over the force range.

The FSS Series Sensor delivered 20 million operations in

Force sensors operate on the principle that the resistance of Mean Cycles to Failure (MCTF) reliability testing at 50°C silicon-implanted piezoresistors will increase when the [122°F]. This test determines the number of possible sensor resistors flex under any applied force. The sensor concentrates operations at full scale until failure. force from the application, through the stainless steel ball, directly to the silicon-sensing element. The amount of resistance changes in proportion to the amount of force being applied. This change in circuit resistance results in a corresponding m V output level change.

FEATURES AND BENEFITS POTENTIAL APPLICATIONS  Ro HS-compliant materials meet Directive 2002/95/EC Medical allows use in industries requiring regulation compliance

 Infusion pumps

 Low deflection (approx. 30 µm typical at full scale) helps

 Ambulatory non-invasive pumps

reduce measurement error

 Direct mechanical coupling of the actuation ball to the  Occlusion detection

sense element reduces coupling errors and keeps  Kidney dialysis machines mechanical hysteresis to a minimum  Enteral pumps  Product rating of 20 million MCTF at 25 °C [77 °F], subject to application variation, provides for consistent output over

Industrial

time and reduces repairs or replacements

 Small size minimizes space on the printed circuit board  Load and compression sensing

(PCB)  Variable tension control  Provides enhanced sensitivity without compromising  Robotic end-effectors signal integrity, resulting in low system noise and reducing

 Wire bonding equipment

measurement errors  Electrically ratiometric output accommodates supply voltage variations, leading to low ratiometricity error  Low voltage supply allows for use in many battery powered applications  High resistance to electrostatic discharge (ESD) meets ESD Sensitivity Classification Level 3B (8 KV), reducing special handling during assembly  Sensor output has low sensitivity to many mounting stresses