Emerson Linear Displacement Sensor PR 9350/.. Series

Emerson Linear Displacement Sensor PR 9350/.. Series

Sensor Overview

The PR 9350/.. Series linear displacement sensor is an inductive sensor mainly used to measure static and dynamic displacement, and can also be combined with carrier frequency measurement bridge to measure physical quantities that can be converted into linear motion (such as tension, pressure, material thickness, etc.). It has the characteristics of high resolution across the entire range, small hysteresis, sturdy structure, low control target force, wide measurement range (± 12 to ± 150 mm), high accuracy, and sealed packaging.

Working principle

The differential coil of the sensor consists of a coil holder with two windings and a solenoid plunger with a ferromagnetic core that moves within the coil. When the tracing needle is precisely located in the middle of the coil, the impedance of the two windings is the same; When the probe with a ferromagnetic core moves from the middle position towards one end of the sensor, the impedance of one winding will increase, while the impedance of the other winding will decrease. By using resistors to supplement the winding into a Wheatstone bridge and providing a carrier frequency to the bridge, the measured output of the bridge will obtain a voltage proportional to the displacement of the stylus. The tracing needle can move freely and comes with an M3 threaded rod for mechanical adaptation to the measurement target. There is a 3-pole Cannon socket on the top of the housing for electrical connection.

Technical parameters

Sensitivity: Within the rated measurement range, the bridge output for every 1V supply voltage is 270 mV/V.

Supply voltage: 5 Vrms.

Linear error: 2% of the total range (relative to the ± range limit of the sensor).

Carrier frequency: 3-5 kHz.

Allowable ambient temperature: -20... 0...+120 ° C.

The effect of temperature on sensitivity: 0.1%/K.

Nominal inductance: 20+20 mH when the solenoid plunger is in the middle position; 7+26 mH at maximum displacement; 13+26 mH at 50% displacement; 5+5 mH when withdrawn.

Capacitor: 250 pF per winding.

Standard attachments: Cannon MS-3106E10SL-3S connector, solenoid plunger with M3 threaded rod.

Parameters of each model

Model nominal measurement range (mm) approximate weight (g) size (mm) order code

PR 9350/01: -12... 0...+12 170 4 holes 76.6 39.2 60.3 85.1 16.0 9408 093 50011

PR 9350/02：-25...0...+25 255 - 108.0 127.0 65.4 76.2 123.2 19.0 9408 093 50021

PR 9350/04：-50...0...+50 370 - 197.0 229.0 112.0 150.0 144.1 25.4 9408 093 50041

PR 9350/06：-75...0...+75 510 - 311.0 330.0 169.5 200.0 238.1 25.4 9408 093 50061

PR 9350/08：-100...0...+100 660 - 413.0 432.0 218.8 247.7 292.1 25.4 9408 093 50081

PR 9350/12：-150...0...+150 860 - 616.0 635.0 319.9 342.9 311.2 25.4 9408 093 50121