VIP会员
The instrument is simple to operate. Front panel controls are used to set up instrument operations. Select the wavelength through the front plate switch and then place the dosage in the frame and in the measuring well. 1/2 inches displays light density values at 2 or 3 decimal places。
The instrument uses an excellent long-term stability filter for wavelength selection. Light bulbs are long and easy to replace。
Optional accessories include an rs232 output interface for computer connections and a set of neutral density filters for checking instrument operations。
Fwt-92d reader, fwt-92d film dose reading device specification parameters
Photodensity ranges: 0. 001 to 1. 999, 2. 00 to 3. 00。
Internal control: none。
External control: zero points (hi) and gain (lo) reconciliation。
Wavelength selection: 510 or 600 nm or 605 nm。
Preheat time: 20 minutes。
Drift: ± 0. 005 od/h approaching 0 od。
Photometric accuracy: ±0. 003 od at 0. 0000 to 1. 000 od; ± 1% read at 1. 000 to 1. 999 od; ± 2% read at 2. 00 to 3. 00 od。
Filter wavelength: ±2 nm。
Filter bandwidth: 510 nm: 7. 7 nm ± 1. 5 nm; 600 nm: 10. 1 nm ± 1. 5 nm
Light bulb life: 8,000 hours
Power requirement: 110 volts, 60 hertz
Dimensions: 31 wide x 23 deep x 17 high cm (12 x 9 x 7 in)
Fwt-92d readers, fwt-92d film dosage readers select
Moderate density filter group: fwt-82c (authentication)
220v 50hz operation (model fwt-92-220)
Rs232 interface
The radiation discoloration thin membrane dosage measurement techniques have several advantages compared to traditional photo films: simple operation, no dark room equipment and film dark boxes, and no subsequent shampoo treatment; dose response unrelated to dose rates; and energy response characteristics (except for low energy x rays below 25 kv). However, the film needs to be protected against extreme environmental conditions such as high humidity and high temperature. The radiation colour change film is applied to high-dose measurement scenarios, extending from the gorye level to hundreds of thousands of grays, such as the fwt-60 radiation colour change film produced by far west technology, goretta, california, united states; it should be noted that the dose response of the film to non-linear deviations requires correction between high-dose zones
The radiation discoloration thin membrane dosage measurement techniques have several advantages compared to traditional photo films: simple operation, no dark room equipment and film dark boxes, and no subsequent shampoo treatment; dose response unrelated to dose rates; and energy response characteristics (except for low energy x rays below 25 kv). However, the film needs to be protected against extreme environmental conditions such as high humidity and high temperature. The radiation colour change film is applied to high-dose measurement scenarios, extending from the gorye level to hundreds of thousands of grays, such as the fwt-60 radiation colour change film produced by far west technology, goretta, california, united states; it should be noted that the dose response of the film to non-linear deviations requires correction between high-dose zones