GTS gear speed sensor is an advanced speed sensors for non-contact detection of rotator speed measurement range is a turn to 20000 rev / min, the square wave signal output can be directly and TTL, CMOS circuit interface, etc., constitute a speed measurement / control system. GTS product is waterproof tube structure, waterproof, dustproof, anti-oil pollution of the advantages that can operate reliably in harsh environments, particularly suitable for industrial control and military projects. First, the performance of an underlying technology, the rated sensing distance: 2mm 2, detection frequency response: 1Hz ~ 10KHz 3, speed range: 1 ~ 20000rpm (with appropriate gear package) 4, the operating voltage polarity protection and output short circuit protection 5, Operating temperature -20 ~ 75 ℃ Second, the electrical properties of a working voltage: 12 ~ 30VDC 2, quiescent current consumption: ≤30mA 3, the maximum output current: 50mA 4, output low voltage: ≤0.5VDC 5, the rising edge Time: ≤2us 6, fall time: ≤2us 7, output: NPN open collector output (OC), square wave, duty cycle of 50 ± 20% three, detection gear a modulus: m≥1 2, Gear Thickness: ≥4mm 3, tooth: involute or trapezoidal four straight teeth, gear materials: magnetic materials (such as 45 # steel) Fourth, the use of 1, the sensor dimensions shown in Figure 1, the installation comes with a sensor The nut on the mounting hole, fixtures recommend the use of non-magnetic materials (copper, stainless steel, etc.) sensor should be installed facing the tooth surface, spacing the tooth surface and the front surface of the sensor should not exceed the rated sensing distance. 2, detection gear can be a machine already working gear or a special gear, but should be consistent with the provisions of subparagraph III should be possible to detect the distance with a smaller gear should also be possible using large high magnetic materials modulus. 3, the actual speed range according to the number of teeth N gear and different, can be calculated: the lower speed range: Vmin = (rpm); speed range upper limit: Vmax = (rpm) 4, see the wiring diagram 2. The sensor housing and shield wire shield connected to the user at the receiving end should be connected to the shield system to 5, to enhance the signal jamming capability, the sensor can be current output, and at the receiving end isolation optocouplers