btl is a BTL company.
BTL: abbr. (Air Defense System) up-to-down talk, Beacon Tracking Level (Beacon Tracking Level) Rear Air Force.
Founded in 1993, btl is one of Europe's largest manufacturers of medical and aesthetic equipment. The products involve four major fields: cardiopulmonary field, cosmetic medicine, rehabilitation physiotherapy and sports medicine. Its physiotherapy products include: electrotherapy, laser, ultrasound physiotherapy, magnetic therapy, shock wave therapy, short wave therapy, traction therapy, wax therapy, hydrotherapy, air wave pressure therapy and therapy beds, therapy chairs and so on.
Their cardiopulmonary products offer a wide range of electrodiagnostics, cardiopulmonary function tests, blood pressure monitoring, ambulatory cardiac monitoring, exercise cardiology, software solutions and more. ***There are more than 30 series and over 120 products widely recognized in the global market. With all products recognized by CE and ISO bodies, and most of them FDA approved, BTL is proud to offer products that meet a wide range of demanding industry standards and provide care for sick people around the world.
It means a bridged load. The two ends of the load are connected to the outputs of two amplifiers. The output of one amplifier is the mirror image of the other, meaning that the signals applied to the two ends of the load are only 180° out of phase. The load will receive twice the voltage of the original single-ended output. Theoretically, the output power of the circuit is increased by a factor of 4.
BTL circuits make full use of the system voltage, so BTL structures are often used in low-voltage or battery-powered systems. In car audio, when the power of each channel is more than 10w, most of the BTL form.
btl offline:
offline business operation.
below-the-line account: offline account.
below-the-line payments and receipts: offline receipts and payments.
below-the-line product promotion: offline product promotion.
biomass-to-liquid: biomass-to-liquid.