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Classification of speed sensors
4. Detection distance: 0.5-2.0mm (A3 steel, electrical steel)

External magnet: 0.5 0.5-10mm

5. Gear module: m≥ 1

Gear material: A3 steel, electrical steel 120℃

6. Output signal:

Waveform: rectangular wave

Amplitude: Close to power supply voltage

7. Environmental conditions:

Temperature: -40℃ ~ 125℃

Relative humidity: ≤85%

4. Choose a guide:

PR-970-B-C-D-E- description:

B: shell length c: thread specification d: lead mode e: cable length

Sensor length: b □□□□□ 01:65mm 02: 80mm03:120mm04: customized.

Installation thread: c □□□□□

01:m16 *1.02: customer designation.

03:m 12 * 1 04:m 10 * 1

05:M 18* 1.5

Leadership model d □□□□□

00: direct lead (waterproof) 0 1: aviation plug

Cable length e □□□□□

0 1: line length is one meter 02: line length is two meters.

03: Three meters and so on.

Example:

PR970-B02-C02-D00-E02

It means that the thread length is 1 17mm, the length is M 16* 1, the lead is direct, and the line length is 2m.

5. Connection mode: antenna plug-in or direct socket.

Red: 24V DC (12-25V DC)

Black: COM

Color line: the main function and characteristics of signal output

Princeton optics is a world-famous optical instrument; PR-870 uses the principle of laser reflection to obtain the signal of rotor rotation and can measure the rotor speed. Its characteristics are high resolution, long distance, wide practical range, wide frequency response and high reliability. Built-in amplification and shaping circuit, the output is a square wave signal with stable amplitude, which can realize long-distance transmission.

external

The sensor housing is made of stainless steel.

The waterproof structure is simple, the compression resistance is strong, the sealing is reliable, and waterproof glue agent is not used.

product application

Because the sensor shell is made of stainless steel, the sensor is sturdy and durable, and it is mainly used for testing occasions with harsh environment and severe vibration (such as engines). Used to measure speed, period and speed.

Technical indicators

Working voltage:+10-36v

Working temperature: -40 to +80.

Output signal: high level is similar to power supply voltage; Low energy level

Response frequency: 0. 1HZ to 20KHz.

Number of separation membranes: > 0.5

Use humidity:

Output current:

Protection form: limited and short circuit protection

Trigger form: reflective strip

Insulation resistance: > 50MΩ

Applicable distance: 2mm-600mm.

Shell material: stainless steel

Length 65mm, diameter 18mm, connection mode: brown 24V, blue negative electrode, black signal 1, overview:

The air-vibration HZ-860 magnetoelectric speed sensor can convert angular displacement into electrical signals for the counter to count. As long as it is non-contact, it can measure the speed and linear speed of various magnetic materials such as gears, impellers, perforated disks (or grooves and screws).

The sensor is small in size, firm and reliable, long in service life, and can be used with general secondary instruments without power supply and lubricating oil.

2. Technical parameters

1, output waveform: approximate sine wave (≥50r/min)

2. Output signal amplitude:

At 50r/min, the clearance between the sensor core and the measured gear tip δ= 0.5 ~ 1.2mm≥300mv.

Measured gear modulus m = 2.

Gear Z = 60

Electrical steel material

The signal amplitude is directly proportional to the rotating speed and inversely proportional to the gap between the iron core and the tooth tip.

3. measuring range: 20 ~ 20 ~10000 Hz

4. Time of use: continuous use

5. Working environment: temperature-20 ~+180℃

6. Output form: X 12K4P four-core plug

7. Overall dimensions: outer diameter: M 12X 1, m16×1; M 18× 1.5, with a total length of 80mm 20x1.5.

8. Weight: about 120g (excluding output line)

3. Outline drawing:

Plug terminals 1 and 4 are connected to the signal output line.

4. Use precautions

1. When installing, the thread of the sensor housing M20× 1.5 or other specifications should not be damaged, and the hexagon nut should rotate freely. After the hexagon nut is tightened, there should be no looseness.

2. During installation, it is best not to contact the measured gear with the sensor. It is desirable to reduce the gap δ as much as possible to improve the amplitude of the output signal.

5, single machine complete sets

1 and 1 magnetoelectric speed sensor.

2, cable 2 meters

3. Manual 1 copy

4. Certificate 1 copy. Belonging to a variable reluctance sensor. Three basic types of variable reluctance sensors, inductive sensor, transformer sensor and eddy current sensor, can be made into speed sensors. Inductive speed sensor is widely used, which uses the change of magnetic flux to produce induced potential, and its potential depends on the speed of magnetic flux change. According to the different structures, this kind of sensor can be divided into two types: open magnetic circuit type and closed magnetic circuit type. The open magnetic circuit type speed sensor (Figure 4a) has a simple structure and a small output signal, so it is not suitable for severe vibration. The closed magnetic circuit type speed sensor consists of an external gear, an internal gear, a coil and a permanent magnet mounted on a rotating shaft (Figure 4b). The number of teeth of the internal and external gears is the same. When the rotating shaft is connected with the shaft to be measured and rotates together, the reluctance changes due to the relative movement of the inner and outer gears, and an AC induced potential is generated in the coil. By measuring the potential, the corresponding speed value can be measured.