1. 100-0 Pressure Sensors

2. Pressure Sensors

3. Basics pressure p = force F area A 1 Pa = 1Nm -2 1 bar = 10 5 Pa = 0,1 MPa

4. Basics Pressure in flowing media Proportion of static and dynamic pressure in a flow

5. Basics both components depend on the density, (hydro)static pressure is increasing linearly in relation to fluid column and is dependent on earth-gravitation. The dynamic component on the other hand increases quadratically with the flow speed of the fluid. The Law of Bernoulli descripes the effect of dynamic pressure

6. Basics Gaspressure Gas pressure is the sum of all the forces exerted on a vessel wall by a gas or gas mixture. Steam pressure and saturation steam pressure are special types of gas pressure. Air pressure is an example of gas pressure. P*V/T=const.

7. Basics Pressure types: Absolutdruck (absolut pres.) (measuring starts at vacuum) Über-/Relativdruck (relative pres.) (measuring starts at ambient pressure) Differenzdruck (differential pres.) ( Δp between two measured pressures )

8. Basics Measuring principles The most commonly used measuring principles for measuring pressure are as follows: Bourdon tube (pressure gauge or high-precision quartz spiral) Piezoresistive measuring principle Capacitive measuring principle Inductive measuring principle Piezoelectric measuring principle Resonance process Pirani measuring principle

9. Basics Bourdon tube “from the party blower to the high-end measuring principle”

10. Basics Fused-quartz presssure sensor This rugged transducer offers unequalled precision and a stability of 0.0075% of reading per year. The media is in direct contact with the quartz, eliminating mechanical linkages and diaphragms, to provide the highest performance available in an automatic controller.

11. Basics Piezoresistive pressure sensor On piezoresistive pressure sensors, one or several resistances are changed by a pressure. They mostly contain a strain gauge which isstrain gauge diffused into a diaphragm and are mostly made from silicon. Other technologies are Thick-film hybride or Thin-film technology.

12. Basics Working principle (Thick-film hybride) on a body made out of ceramic with a membrane you will find a Wheatstone measuringbridge build up with thick-film resistors. Under pressure the bridge resistors on the membrane will be defomed which occured a changing of the bridge-voltage. 2k  temperature- diode bridge- voltage mV out

13. basics capacitive sensors With capacitive sensors, the deflection of a deformation element (diaphragms, plates) causes a change in the capacitance of a single or differential capacitor. The change in capacitance is normally caused by a gap change in the capacitor plates.

14. basics Inductive Sensors Inductive pressure sensors measure the change in distance of the deformation element according to the moving armature principle. The change of the inductance in the coils is evaluated and thus the relationship is established to the measured variable of “pressure”.

15. Basics Piezoelectric Pressure sensor When pressure is applied to a piezoelectric sensor the resulting charge separation produces an electrical voltage in a crystal. This is the so-called piezoelectric effect. The pressure causes the ions inside the crystal to move so that the charge changes proportionally to the force. Piezoelectric sensors only measure forces in all cases. If the sensor has to be used to measure pressure, the pressure must first be converted proportionally to a force by means of a diaphragm. It is mostly used for dynamic process

16. Basics Resonant silicon sensor On resonant silicon sensors one (absolute pressure) or two (differential pressure) resonators are embedded in a silicon substrate oscillating at their resonant frequency when there is no pressure applied. The difference in frequencies is then directly proportional to the differential pressure value; their sum represents the static pressure value. Tuningfork-principal

17. Basics Pirani pressure sensor (exclusively used in high-vacuum) The thermal conductivity cell is based on the fact that the thermal conductivity of a gas changes with pressure (since at low pressure fewer collisions occur between the gas molecules and thus the thermal conductivity drops)

18. PS-Series: Application: Dosage Monitoring of Epoxy-Adhesive Adhesive is used for mounting car body parts. Sensor: PS250R-606-LI2UPN8X-H1141 Potential: 200 pcs /year Application

19. Applikation Vacuummonitoring on lifting equipment PS Serie, cause of the robust stainless steel body, and easy programming 130 sensor/ year PS01VR-501-LUUPN8X-H1141

20. Levelmonitoring in industrial applications Applikation PT-Serie

21. Applikation PT Serie Tasks: Inexpensive solution with 4…20mA in 2-wire technology Problem: Process connection must have food industry approval.

22. Application PT Serie Conveying pressure monitoring on a pump

23. Applikation PT Serie Pressure monitoring up 125°C continuous temperature

24. Application PK-Serie vacuum monitoring on a robot

25. Application Vacuummonitoring on a placement machine

26. Application Vacuummonitoring on lifting equipment

27. How do our sensors look like? PT-1 PC-1 PK-P PK-N PS 500 PS 600

28. Pressuresensor portfolio PT-1 PK-P PK-N PS 500PS 300PS 600 PT-2

29. New familymember! PS 300 for hydraulic - applications G ¼“¼“NPTR¼“ DIN2999 Europe USA Japan

30. PS 300 for hydraulic applications pressure ranges -1...600 bar Accuracy typ. 0,3% of span Very robust (fully potted) IP69K Bonded O-ring seals for safer sealing Pressure sensors

31. PS 300 3 electrical standard outputs for all pressure ranges 2UPN - 2 switching outputs LI2UPN - 1 switching output and 1 current output (current output changeable to a switching output) LUUPN - 1 switching output and 1 voltage output IO-Link as a communicationstandard for all sensors

32. Pressure sensors PS 300 Ceramic presssurecell developed by Turck

33. Competitors

35. Selling Points PS-Series Ease of use All parameters are accessable via 2 buttons. Easy Mounting with PS 500 Rotatable Display Highly flexible Different process connections Flush face membrane for hazardous applications Multifunctionality for variant reduction 1 sensor for all application LI2UPN 0,5% accuracy Robust design, stainless steel housing

36. Application PK-Series PK-P PK-N

37. Application competitors

38. Application PK Series: exclusively for pneumatic applications vacuum handling of: - paper - chip-elements - IC’s glass handling vacuum conveyors palletizer grippers analysis instruments controls for metering devices pressure and vacuum monitoring labelling machines

39. Selling Points PK-Series Perfect suitable for pneumatic applications Suitable for on-site mounting Easy programming Small but robust

40. Selling points The following applies to all pressure sensors: Standard sensors available from stock The customer receives support worldwide The customer is buying a product that can be relied on 100% The simple operation does not overburden the user Manufacturing is carried out to the highest quality standards and with state-of-the-art technology The flexibility we offer our customers with the 500 version is unique. The 500 version is the basis for the 600 version Max. high temperatures up to 300°C The process connection is only a problem if the unit volumes are too low. We can offer every conceivable process connection for flush-mounted sensors from 10 units upwards.

41. Type code

44. Documentation or

45. Documentation or New sensor catalog

46. Internet

47. First they ignore you, then they laugh about you, then they fight you and then you win Mahatma Gandhi 02.10.1869 - 30.01.1948 indian freedom fighter Mahatma Gandhi PCS