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Accurate Measurement of Hole Depth Using Dimetix Laser Distance Sensors

By July 28, 2020October 5th, 2022No Comments

Dimetix laser distance sensors offer an accurate and easily integrated non-contact technique of measuring hole depth. Measuring the depth of a hole or deep bore can be challenging. Examples of scenarios in which this is necessary are:

  • Level to afloat in a tank
  • Water level in a deep wellbore to afloat
  • Bar stock position in a machining center feed tube
  • Hole depth gaging in machining operations

Deep bores are not practically measured using mechanical means. Other non-contact techniques, such as ultrasonic, often have problems with reflections from the inner walls of the bore. Laser distance sensors can be a good candidate for solving this measurement challenge.

Hole Depth Measuring Techniques

Dimetix laser sensors operate based on a phase shift principle. The receiver and transmitter are both mounted on the sensor and are close together. As a result, the signal comes back to the sensor directly.

Triangulation type laser sensors cannot measure deep bores because the retuning laser signal cannot exit the bore and return to the sensor’s reeving element.

long distance laserNon-Contact Measurement of Hole Depth

Dimetix laser distance sensors are rugged, accurate, cost-effective, and easily integrated into most customers’ control systems. These lasers are the ideal choice for the measurement of a hole’s depth.

The Dimetix D-series laser distance series from Laser-View Technologies provides the best position sensors to achieve the following key characteristics:

  • Small spot size: Approximately 0.15” spot size close to laser; grows to only about 2” size at 100m
  • Extended temperature ranges from -40 to +60 C available
  • Up to 500m measuring range
  • Up to 1mm absolute accuracy over the entire range, independent of color, texture, and actual distance
  • Fast measurements up to 250 Hz with 1 kHz output

Variety of outputs:

  • Built in standard: RS232, RS485/422, SSI encoder, analog, digital I/O
  • Optional: Ethernet IP, Profinet, EtherCat available integrated to the sensor make integration Allen Bradley and Siemens controllers simple

Full line of accessories:

  • NEMA 4X & explosion rated enclosures
  • Mounting brackets
  • Cabling
  • Displays and process meters

Interested in learning more about Dimetix laser distance sensors measuring solutions? Click here to contact Laser-View Technologies.