Sensirion Liquid Flow Products – The Basics
Index
• High level product overview
• 3 Steps to integration support
• Motivation for using Sensirion Liquid Flow Products
• Basic Liquid Flow Use Cases
Tried and tested CMOSens for Flow measurements:
• Fast response time
• Excellent repeatability
• Inert wetted materials
Sensirion’s liquid flow sensors include a wide portfolio of solutions. Flow rates range from single nanoliters to over 100 milliliters per minute. Burst pressures can reach 1200 bar and the physical size can be as small as 10 x 10 mm² and even single use sensors are available.
Sensirion Liquid Flow Products – 3 steps to integration support
1. Identify
Using available resources to identify required sensor:
• Flow rate
• Wetted materials
• Pressure
2. First tests – Flow meter and Eval. Kits
First tests are easy to run and support with a Flow Meter or Evaluation Kit.
The kit comes with a sensor, cables, as well as software.
3. Sensor integration
Support the customer with integration:
• Support using our I²C integration guide
• Use developer.sensirion.com
• Supply OEM versions of the sensors
Sensirion Liquid Flow Products – Motivation
1. Volume and Washing Validation
Validate reagent and sample volumes, as well as washing and flushing cycles.
2. Feedback Loop
Precise flow control, with a sensor and pump feedback loop.
3. Leak Detection
Detect leaks and air bubbles in fluidic systems.
4. Detect Drifts and Occlusions
Monitor liquid handling steps to avoid long term changes and drifts. Detect partial or complete occlusion. Added security through failure detection.
5. Optimized Processes
Constant and optimized processes create stable results and peace of mind.
Basic Liquid Flow Use Cases – Validate Volumes and Washing Processes
Without Sensirion:
• Pumps as only source of feedback
• No further failure detection
With Sensirion:
• Monitor:
• Dispensed volume
• Flow rate
• Temperature
•…
• Detect air in line
• Detect long term drifts in motors, gears and valves
• Validate washing process
Basic Liquid Flow Use Cases – Feedback Loop
Without Sensirion:
• Pulsating flow
• Adverse effects on:
• Reactions
• Timing
• Stability
With Sensirion:
• Stabilized flow
• Increased:
• (Long term) stability
• Repeatability
• Predictability
Basic Liquid Flow Use Cases – Calibrating and Monitoring Complex Systems
Without Sensirion:
• Calibrate every fluidic path individually
• Fine tuning is only possible over long measurement times against external references
With Sensirion:
• Accelerate calibration process of every system:
• Characterize…
• Optimize…
• Stabilize…
… with real time flow data.
DigiKey Sensirion Product Selection:
DigiKey Sensirion Flow Sensors
All DigiKey Sensirion Sensor Products