SENER Lithium batteries consist of three layers: positive electrode, separator, and negative electrode. Lithium manganese dioxide battery uses manganese dioxide (MnO2) as its positive active material, lithium (Li) as its negative active material and an organic electrolyte as its separator. Gasket is used to prevent leakage of material...
In common parlance a Buzzer is a signaling device that is not a loudspeaker. It can be mechanical, electromechanical, or electronic (a piezo transducer). BeStar produces Buzzers in every available configuration for a wide variety of applications. A Piezo transducer can produce the sound for panel mount buzzers, household goods, medical devices and even very loud sirens. When a lower frequency is required an electromagnetic buzzer can fill the need. These are very common...
Haptic / Tactile feedback (or haptics) is the use of advanced vibration patterns and waveforms to convey information to a user or operator. The word ‘haptics’ is derived from the Greek phrase ‘Itouch’. Many products are designed to communicate with their users. Historically these have been audible and visual alerts, such as LEDs, beeps, bells, amongst others. Haptic feedback, and it’s simpler relative ‘vibration alerting’, are in increasing demand to augment or replace the old alert methods...
BeStar Electret Condenser Microphones have found applications in a broad variety of uses such as telephones, high quality and small recording devices, hearing aids, megaphones, headsets microphones, hands free devices and so on. The electret microphone was invented at Bell Labs in 1962 by Gerhard Sessler and Jim West. The externally applied charge in a condenser microphone is replaced by a permanent charge in an electret material. An electret is a ferroelectric material...
The Piezo Element is the heart of a Piezo Buzzer. Also called Piezo Diaphragms and Piezo Benders, essentially it is offered so that product manufacturers can produce sound within their own housing/enclosure designs. BeStar has special expertise in piezo element production from very small units for sensors, to very large units for sirens. Specially formulated piezo ceramic discs are applied to a variety of base disc materials in order to suit most applications...
Using precision piezo technology, CNC and Micro-machining, BeStar’s line of Ultrasonic Sensors is continually expanding. The piezo element is at the heart of ultrasonic sensors and BeStar possesses unique in-house expertise in this enabling technology. Open structure sensors, waterproof sensors and dual angle sensors are available in a range of configurations and sizes. Customized value added assemblies for convenient application specific usage are available upon ...
A Speaker or Loudspeaker typically offers a wider and flatter frequency response than a piezo, or electro-magnetic buzzer, which is why it is more suitable for applications requiring sound reproduction of music or voice. Wherever you look today, you will find voice or music quality sound required for user interface, or simply user pleasure at operating many kinds of devices. Today, the largest growth in the loudspeaker industry has been in the area of cell phones and a variety of...
