DESCRIPTION
The FSG Series Force Sensor provides precise, reliable force
sensing performance in a compact commercial-grade
package. The sensor features a proven sensing technology
that utilizes a specialized piezoresistive micro-machined silicon
sensing element. The low power, unamplified, non-
compensated Wheatstone bridge circuit design provides
inherently stable mV outputs over the 5 N, 10 N, 15 N and 20 N
force ranges.
Force sensors operate on the principle that the resistance of
silicon-implanted piezoresistors will increase when the
resistors flex under any applied force. The sensor concentrates
force from the application, through the stainless steel plunger,
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 mV output level change.
The sensor package design incorporates patented modular
construction. The use of innovative elastomeric technology and
engineered molded plastics results in overforce capacities of
up to three times the rated force.
The stainless steel plunger provides excellent mechanical
stability and is adaptable to a variety of applications. Various
electric interconnects can accept prewired connectors, printed
circuit board mounting, and surface mounting. The unique
sensor design also provides a variety of mounting options that
include mounting brackets.
Extremely low deflection (approx. 30 µm typical at Full
Scale) helps reduce measurement error
Low repeatability error (0.2% span) improves overall
system accuracy
Low linearity error (0.5% span) improves system
accuracy over the entire force range
Low off-center loading errors improves system accuracy
due to mechanical misalignment
Resolution to 0.0098 N improves customer’s system
accuracy
Fast response time allows system to make faster
decisions which may improve system accuracy
Low power consumption allows use in battery applications
High ESD resistance of 8 kV) reduces special handling
during assembly
Medical
Infusion pumps
Ambulatory non-invasive pumps
Occlusion detection
Kidney dialysis machines
Enteral pumps
Industrial
Load and compression sensing
Variable tension control
Robotic end-effectors
Wire bonding equipment
