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Position sensors

What are Position Sensors?

SCMA has been officially appointed as the sole authorized distributor of ifm in Thailand. 

Position sensors are devices that detect the position of an object, allowing for precise spatial or movement data to be identified. They are widely used in industries and manufacturing processes where controlling the movement of parts is necessary, as well as for detailed distance measurements, to ensure maximum efficiency in production.

Types of Position Sensors

  • Potentiometric Sensors use electrical resistance to measure position, commonly used for linear and angular measurements. Suitable for applications that do not require extremely high precision.
  • Encoders are divided into two main types: linear and rotary, using digital signal reading to detect position. Primarily used in industrial robots and CNC machines.
  • Linear Variable Differential Transformers (LVDT) use electromagnetic induction to detect linear positional changes by sending continuous electrical signals, suitable for high-precision applications.
  • Hall Effect Sensors use magnetic fields to detect position by sensing changes in magnetic force to identify object location. They are highly accurate and resistant to dusty or wet environments.
  • Optical Sensors use light for position detection, often involving lasers or LEDs combined with a photoreceptor to detect positional changes or movement, ideal for long-distance measurements requiring high precision.
  • Ultrasonic Sensors use high-frequency sound waves to detect distance or movement of objects. Suitable for detecting in areas that cannot be reached by touch.
  • Capacitive Sensors use changes in electrical capacitance according to position or distance, commonly used for detecting metallic objects or high-precision distance measurements.
  • Magnetostrictive Sensors use magnetic field changes to detect movement or distance. Popular in hydraulic systems and positioning in environments with high impact forces.

Why Choose ifm Position Sensors?

ifm electronic, a global brand specializing in the production and distribution of sensors for industrial automation systems, offers high-quality products with cutting-edge technology. This enhances efficiency and reliability in smart factories, where IO-Link plays a crucial role in developing intelligent industries by improving production efficiency, reducing errors, and enhancing control accuracy to ensure top product quality.

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Capacitive Sensor (A sensor used to detect metal, non-metal, and all types of liquid objects)

Object detection sensors are important devices that enhance the efficiency of modern automated systems. Capacitive Sensors or capacitive sensors stand out for their ability to detect a wide variety of objects including metal, non-metal, and liquids without contact. At SCMA we are the official sole distributor of ifm electronic in Thailand, equipped with a team of experts to advise on selecting detection systems that meet your needs.

What is a Capacitive Sensor?

A Proximity Sensor is an industrial non-contact object detection sensor. A Capacitive Sensor is one type that can detect both metal and non-metal objects, including plastic, water, wood, glass, and dust. It uses the principle of electric fields and capacitance; when an object enters the detection range, the capacitance value changes causing the sensor to signal immediately. Suitable for liquid level measurement, seed or plastic pellet counting in silos through Sight glass with accuracy.

How Capacitive Sensors Work

Capacitive sensors use a front plate capacitor and ground to create an electric field via an oscillator continuously. When an object enters the electric field area, capacitance increases causing the circuit to oscillate and signal status change. Detection capability depends on the dielectric constant of materials, type and size of objects, as well as distance. Learn more about capacitive sensor technology.

Types of Capacitive Sensors

How many types are there? There are several types based on their working principle, and they can be categorized according to installation type and purpose:

General Proximity Sensor (Capacitive Proximity Sensor)

Standard proximity sensors detect both metal and non-metal objects at a range of 5-50 millimeters, working through electric field changes when an object enters. Suitable for position detection on conveyor belts, counting workpieces, or checking products in packaging.

Insertion Type Level Sensor

Capacitive sensors with probes inserted into containers measure liquid or solid levels when material level touches the probe and signals. Suitable for small tanks, silos, or pipelines where specific point-level measurement is required.

Submerged Type Level Sensor

Sensors submerged in liquids measure continuous liquid levels without additional probes by converting pressure into level data. Suitable for deep wells, large tanks, or high-precision water treatment systems.

Key Features of Capacitive Sensors

SCMA selects high-quality capacitive sensors from ifm electronic with standout features:

  • High Detection Sensitivity - Ifm proximity sensors have high sensitivity to detect insulating materials such as plastic, glass, and low dielectric constant materials. Widely applicable.
  • Non-Destructive - The non-contact detection of capacitive sensors prevents wear and tear on objects, reducing damage during use and maintaining product surface quality.
  • Durable in Industrial Environments - Operates well in dusty, wet, or oily environments. Special models have chemical-resistant housings for heavy-duty conditions.
  • IO-Link Technology - Ifm sensors come with IO-Link, a key technology in smart industry development. Enhances production efficiency, reduces errors, and increases process control accuracy.
  • Easy Adjustment - Capacitive sensors have adjustable detection sensitivity for materials and distances. Can be customized according to actual usage conditions.
  • Durable Longevity - No moving parts or wear-prone contact surfaces, reducing maintenance frequency and spare part replacement.

Why Choose Capacitive Sensors from ifm?

Ifm electronic is a world-renowned brand specializing in sensor production for industrial automation. With advanced technology and high-quality products, smart factories can operate efficiently and reliably:

International Standard Accuracy

Sensors from ifm are designed and manufactured to strict standards, providing accurate and consistent measurement results suitable for high-precision work that reduces errors in the production process.

IO-Link Technology for Industry 4.0

Sensors come with IO-Link technology, enabling real-time data exchange and control system connectivity, enhancing configuration flexibility and operational status monitoring to support efficient smart factory development.

Proven Quality

Leading manufacturers such as Balluff and ifm electronic have developed sensor technology for a long time. Ifm stands out with durability and longevity, trusted by leading industries worldwide.

Applications of Capacitive Sensors

Ifm's capacitive proximity sensors are indispensable in various industries, enhancing efficiency and accuracy:

  • Food & Beverage Industry - Capacitive sensors check liquid levels in mixing tanks, detect bottles or cans on conveyor belts, control automatic ingredient dispensing, and count packaging.
  • Chemical & Petrochemical Industry - Used to measure chemical levels in storage tanks, monitor liquid flow in pipelines, detect leaks, and control automatic mixing processes.
  • Plastics Industry - Count plastic pellets in silos through Sight glass, check raw material powder levels, detect plastic parts on conveyor belts, and control material feeding into injection molding machines.
  • Packaging Industry - Proximity sensors check product packaging in boxes, detect liquid filling levels, count items on pallets, and control arrangement on conveyor belts.
  • Agriculture & Animal Feed Industry - Measure grain levels in silos, monitor animal feed flow in pipelines, control automatic feeding, and monitor raw material levels in storage tanks.
  • Water & Wastewater Treatment - Capacitive sensors measure water levels in treatment ponds, control automatic pumping, monitor chemical treatment levels, and prevent tank overflow.
  • Automotive Industry - Detect plastic and rubber parts, check oil levels in tanks, control part feeding into assembly lines, and count items in boxes.
  • Paper Manufacturing Industry - Use capacitive sensors to measure pulp levels in tanks, detect paper sheets on conveyor belts, control surface coating, and count sheet numbers in bundles.

Ifm Capacitive Sensors at SCMA

SCMA is a technical partner ready to support you every step of the way. As the official sole distributor of ifm electronic in Thailand, we ensure quality products with over 40 years of automation experience. Our team of expert engineers provides consultation from requirement analysis, system design and installation testing through training and after-sales service. Learn more about our services.

Summary

Choosing the right capacitive sensor from ifm electronic is crucial for enhancing automation system efficiency and production quality control. SCMA Company Limited is a reliable partner in providing high-quality capacitive sensors from ifm, a world-leading brand, with comprehensive services including consultation, system design, installation, and maintenance. Contact us today to receive free advice and create detection systems tailored to your business needs.

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  1. Inductive Proximity Sensor1831items
  2. Photo sensors645items
  3. Capacitive sensors151items
  4. Magnetic sensors242items
  5. Ultrasonic Senser86items
  6. Cylinder sensors6items
  7. Fiber optic sensors21items
  8. Laser & Distance sensors49items
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Price
  1. THB 0.00 - THB 99,999.993076items
  2. THB 100,000.00 - THB 199,999.994items
  3. THB 200,000.00 - THB 299,999.992items
  4. THB 300,000.00 and above1 item
IFM_type_light
  1. infrared light7items
  2. red light99items
  3. red light, green light, blue light2items
Multimeters-Brand
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IFM_housing
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  2. M24items
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  14. M12449items
  15. M18641items
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  18. Ø 293items
  19. Ø 321 item
  20. Ø 3451items
  21. Ø 10011items
  22. rectangular983items
IFM_sensing_range_mm
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  2. 0.5...40 15items
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  29. 15221items
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  32. 2067items
  33. 20...7010items
  34. 20...602items
  35. 2253items
  36. 241 item
  37. 2510items
  38. 25.81 item
  39. 271 item
  40. 3027items
  41. 30...1208items
  42. 3513items
  43. 4023items
  44. 40...30012items
  45. 452items
  46. 5028items
  47. 6019items
  48. 60; (referred to magnet M 4.0) 18items
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  50. 70; (referred to magnet M 4.0) 7items
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  70. 18006items
IFM_mounting
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  2. non-flush mountable812items
  3. quasi flush15items
IFM_voltage_type
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  2. DC243items
  3. NAMUR1 item
IFM_electrical_design
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  3. 2 x normally open, 1 x normally closed2items
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  18. normally open / normally closed; (programmable); analogue6items
  19. normally open / normally closed; (selectable)240items
IFM_connection
  1. 0.15 m PVC-Cable16items
  2. 10 m PVC-Cable44items
  3. 2 m silicone-Cable9items
  4. 2.05 m PUR-Cable5items
  5. 20 m PVC-Cable8items
  6. 6 m PUR / PVC-Cable10items
  7. 6 m PUR-Cable44items
  8. 8 m PUR-Cable5items
  9. M18 connector16items
  10. M6 connector4items
  11. 0.1 m PVC-Cable; M12 Connector3items
  12. 0.15 m PUR-Cable; M8 Connector5items
  13. 0.3 m PUR-Cable7items
  14. 0.3 m PUR-Cable; M12 Connector60items
  15. 0.3 m PUR-Cable; M8 Connector51items
  16. 0.3 m PVC-Cable; M12 Connector28items
  17. 0.3 m PVC-Cable; M8 Connector38items
  18. 1/2" Connector54items
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  20. 15 m PUR-Cable1 item
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  24. 3 m PUR-Cable20items
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  28. 5 m silicone-Cable6items
  29. 6 m PVC-Cable105items
  30. 6 m silicone-Cable3items
  31. M12 connector1151items
  32. M8 Connector305items
  33. terminals: ...2,5 mm²109items
  34. terminals: ...2,5 mm²; Cable sheath: Ø 7...13 mm4items
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  2. 0...1002items
  3. 0...2001 item
  4. 0...401 item
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  8. 1...501 item
  9. 1...80 4items
  10. 10...400 1 item
  11. 100...2600 1 item
  12. 15...19 1 item
  13. 15...200 1 item
  14. 18...22 1 item
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  16. 2...800 1 item
  17. 20...200 2items
  18. 5...600 2items
  19. 50...1400 1 item
  20. 50...1800 2items
IFM_range_m
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  2. < 10 8items
  3. 153items
  4. < 15 3items
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  8. 0.2...10 1 item
IFM_range_prismatic_m
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  2. 0.03...5 2items
  3. 0.05...2.5 1 item
  4. 0.05...5 10items
  5. 0.075...10 2items
  6. 0.3...22 2items
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  1. 0.025...0.3 2items
  2. 0.025...1.5 2items
  3. 0.03...2 4items
  4. 0.2...10 3items
  5. 0.2...18 1 item
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IFM_operating_voltage_dc_v
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IFM_contact_rating_a
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IFM_sensing_face
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IFM_operating_frequency_mhz
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IFM_background_sup_available
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IFM_side_length_ymm
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  2. 801 item
IFM_sensor_width_zmm
  1. 40.31 item
  2. 1001 item
IFM_number_channels
  1. 12items
  2. 22items
IFM_communication_interface
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IFM_prddesign
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  18. Photoelectric distance sensor14items
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  20. Retro-reflective sensor26items
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  24. Through-beam sensor20items
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