Many small vibrator motors in Precision’s Vibrator Generator™ range are used in massagers or like products. The most obvious and common massager applications tend to be adult in nature, but there is also a strong market for vibration motors used in medical and sporting products. In the case of more general massaging, vibration also usefully prompts the muscle fibres to relax, thereby assisting the effectiveness of other massaging actions.
As well as stimulation for nerve endings, vibration is also used to stimulate blood flow to the skin (required for some medical procedures - e.g. injections), or muscles; some pain relief products work by using vibration to help increase the blood-flow into and around the muscle.
Vibration Generator™ motors are also used for psychological reasons. For example, ultrasonic beauty treatments cannot always be felt, and manufacturers of these products use a light mechanical vibration to make patients feel better about the treatment they are receiving.
The 320-100 flat-sided vibrator motor is rated at 3V DC and is a 3 pole iron laminated core design, with moulded strontium ferrite magnets. The vibration motor has a 1.1V start voltage, and offers quite a wide dynamic range of vibration output (40Hz ~ 120Hz) with an effective operating range of 1.1V to 3.6V. At 3V the motor produces a typical normalised amplitude of 7.2G (70.6 m/s²) at 7.1k RPM. Current draw at 3v is 170mA, which means that the motor has a efficiency of 5.4 G/W when loaded with a 250g inertial load (typical of applications using this motor). The environmental operating temperature is -20°C to +60°C, and has a maximum audible output of 58 dB(A).
The 20mm vibrator motor has solder terminal tags for electrical connections, though Precision Microdrives frequently adds customised leads, harnesses and connectors based on customer specifications. This vibration motor is also a stocked part and is therefore available in quantities of 1+, off-the-shelf.
Precision has been engaged in a number of projects related to massaging, stimulation and beauty applications. Their engineering support team has a wealth of experience relating to application design and guiding customers through the selection process; they’ll be happy to help.
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About Precision Microdrives
Precision Microdrives doesn't just manufacture motors. The company also designs and manufactures complete electronics modules that integrate to the motors, and in some cases Precision also designs and manufactures complete products. Precision Microdrives’
If customers have a product in which vibration is a key component, Precision’s engineering team are happy to offer confidential and free advice.